init v0.10.0

test/integration_tests/wav2vec2_pipeline_test.py

+import torchaudio
+from torchaudio.pipelines import (
+    WAV2VEC2_BASE,
+    WAV2VEC2_LARGE,
+    WAV2VEC2_LARGE_LV60K,
+    WAV2VEC2_ASR_BASE_10M,
+    WAV2VEC2_ASR_BASE_100H,
+    WAV2VEC2_ASR_BASE_960H,
+    WAV2VEC2_ASR_LARGE_10M,
+    WAV2VEC2_ASR_LARGE_100H,
+    WAV2VEC2_ASR_LARGE_960H,
+    WAV2VEC2_ASR_LARGE_LV60K_10M,
+    WAV2VEC2_ASR_LARGE_LV60K_100H,
+    WAV2VEC2_ASR_LARGE_LV60K_960H,
+    WAV2VEC2_XLSR53,
+    HUBERT_BASE,
+    HUBERT_LARGE,
+    HUBERT_XLARGE,
+    HUBERT_ASR_LARGE,
+    HUBERT_ASR_XLARGE,
+)
+import pytest
+
+
+@pytest.mark.parametrize(
+    "bundle",
+    [
+        WAV2VEC2_BASE,
+        WAV2VEC2_LARGE,
+        WAV2VEC2_LARGE_LV60K,
+        WAV2VEC2_XLSR53,
+        HUBERT_BASE,
+        HUBERT_LARGE,
+        HUBERT_XLARGE,
+    ]
+)
+def test_pretraining_models(bundle):
+    """Smoke test of downloading weights for pretraining models"""
+    bundle.get_model()
+
+
+@pytest.mark.parametrize(
+    "bundle,expected",
+    [
+        (WAV2VEC2_ASR_BASE_10M, 'I|HAD|THAT|CURIYOSSITY|BESID|ME|AT|THIS|MOMENT|'),
+        (WAV2VEC2_ASR_BASE_100H, 'I|HAD|THAT|CURIOSITY|BESIDE|ME|AT|THIS|MOMENT|'),
+        (WAV2VEC2_ASR_BASE_960H, 'I|HAD|THAT|CURIOSITY|BESIDE|ME|AT|THIS|MOMENT|'),
+        (WAV2VEC2_ASR_LARGE_10M, 'I|HAD|THAT|CURIOUSITY|BESIDE|ME|AT|THIS|MOMENT|'),
+        (WAV2VEC2_ASR_LARGE_100H, 'I|HAD|THAT|CURIOSITY|BESIDE|ME|AT|THIS|MOMENT|'),
+        (WAV2VEC2_ASR_LARGE_960H, 'I|HAD|THAT|CURIOSITY|BESIDE|ME|AT|THIS|MOMENT|'),
+        (WAV2VEC2_ASR_LARGE_LV60K_10M, 'I|HAD|THAT|CURIOUSSITY|BESID|ME|AT|THISS|MOMENT|'),
+        (WAV2VEC2_ASR_LARGE_LV60K_100H, 'I|HAVE|THAT|CURIOSITY|BESIDE|ME|AT|THIS|MOMENT|'),
+        (WAV2VEC2_ASR_LARGE_LV60K_960H, 'I|HAVE|THAT|CURIOSITY|BESIDE|ME|AT|THIS|MOMENT|'),
+        (HUBERT_ASR_LARGE, 'I|HAVE|THAT|CURIOSITY|BESIDE|ME|AT|THIS|MOMENT|'),
+        (HUBERT_ASR_XLARGE, 'I|HAVE|THAT|CURIOSITY|BESIDE|ME|AT|THIS|MOMENT|')
+    ]
+)
+def test_finetune_asr_model(
+        bundle,
+        expected,
+        sample_speech_16000_en,
+        ctc_decoder,
+):
+    """Smoke test of downloading weights for fine-tuning models and simple transcription"""
+    model = bundle.get_model().eval()
+    waveform, sample_rate = torchaudio.load(sample_speech_16000_en)
+    emission, _ = model(waveform)
+    decoder = ctc_decoder(bundle.get_labels())
+    result = decoder(emission[0])
+    assert result == expected

test/torchaudio_unittest/README.md

+# Torchaudio Unit Test Suite
+
+## How to run test
+
+You can use `pytest` to run `torchaudio`'s test suites. See
+https://docs.pytest.org/ for the detail of how to use `pytest` command.
+
+For testing, please refer to [contributing guide](../../CONTRIBUTING.md) for
+the installation of the required and optional packages.
+
+For running `kaldi`-related tests:
+
+```bash
+export PATH="${PATH}:<path_to_kaldi>/src/featbin/"
+```
+
+Some useful pytest commands:
+
+```bash
+# List up all the tests
+pytest test --collect-only
+# Run all the test suites
+pytest test
+# Run tests on sox_effects module
+pytest test/torchaudio_unittest/sox_effect
+# use -k to apply filter
+pytest test/torchaudio_unittest/sox_io_backend -k load  # only runs tests where their names contain load
+# Some other useful options;
+# Stop on the first failure -x
+# Run failure fast --ff
+# Only rerun the failure --lf
+```
+
+**Note**
+We use PyTorch's test utilities instead of `pytest` frameworks when writing tests to avoid reinventing the wheel for Tensor comparison.
+Also, while we recommend using `pytest` for *running* the tests, we cannot
+make `pytest` a testing dependency of `torchaudio`. As a result, you should
+not import `pytest` or its submodules in the test files; Use the Python
+`unittest` builtin module instead, or the `parameterized` package to
+parametrize tests.
+
+## Structure of tests
+
+The following is an overview of the tests and related modules for `torchaudio`.
+
+### Purpose specific test suites
+
+#### Numerical compatibility against existing software
+- [Librosa compatibility test](./transforms/librosa_compatibility_test.py)
+    Test suite for numerical compatibility against librosa.
+- [SoX compatibility test](./transforms/sox_compatibility_test.py)
+    Test suite for numerical compatibility against SoX.
+- [Kaldi compatibility test](./transforms/kaldi_compatibility_impl.py)
+    Test suite for numerical compatibility against Kaldi.
+
+#### Result consistency with PyTorch framework
+- [TorchScript consistency test](./transforms/torchscript_consistency_impl.py)
+    Test suite to check 1. if an API is TorchScript-able, and 2. the results from Python and Torchscript match.
+- [Batch consistency test](./transforms/batch_consistency_test.py)
+    Test suite to check if functionals/Transforms handle single sample input and batch input and return the same result.
+
+### Module specific test suites
+
+The following test modules are defined for corresponding `torchaudio` module/functions.
+
+- [`torchaudio.datasets`](./datasets)
+- [`torchaudio.functional`](./functional)
+- [`torchaudio.transforms`](./transforms/transforms_test.py)
+- [`torchaudio.compliance.kaldi`](./compliance_kaldi_test.py)
+- [`torchaudio.kaldi_io`](./kaldi_io_test.py)
+- [`torchaudio.sox_effects`](./sox_effect)
+- [`torchaudio.backend`](./backend)
+
+### Test modules that do not fall into the above categories
+- [test_dataloader.py](./dataloader_test.py)
+    Simple test for loading data and applying preprocessing.
+
+### Support files
+- [assets](./assets): Contain sample audio files.
+- [assets/kaldi](./assets/kaldi): Contains Kaldi format matrix files used in [./test_compliance_kaldi.py](./test_compliance_kaldi.py).
+- [compliance](./compliance): Scripts used to generate above Kaldi matrix files.
+
+### Waveforms for Testing Purposes
+
+When testing transforms we often need waveforms of specific type (ex: pure tone, noise, or voice), with specific bitrate (ex. 8 or 16 kHz) and number of channels (ex. mono, stereo). Below are some tips on how to construct waveforms and guidance around existing audio files.
+
+#### Load a Waveform from a File
+
+```python
+filepath = common_utils.get_asset_path('filename.wav')
+waveform, sample_rate = common_utils.load_wav(filepath)
+```
+
+*Note: Should you choose to contribute an audio file, please leave a comment in the issue or pull request, mentioning content source and licensing information. WAV files are preferred. Other formats should be used only when there is no alternative. (i.e. dataset implementation comes with hardcoded non-wav extension).*
+
+#### Pure Tone
+
+Code:
+
+```python
+waveform = common_utils.get_sinusoid(
+    frequency=300,
+    sample_rate=16000,
+    duration=1,  # seconds
+    n_channels=1,
+    dtype="float32",
+    device="cpu",
+)
+```
+
+#### Noise
+
+Code:
+
+```python
+tensor = common_utils.get_whitenoise()
+```
+
+Files:
+
+* `steam-train-whistle-daniel_simon.wav`
+
+#### Voice
+
+Files:
+
+* `CommonVoice/cv-corpus-4-2019-12-10/tt/clips/common_voice_tt_00000000.wav`
+* `VCTK-Corpus/wav48/p224/p224_002.wav`
+* `vad-go-stereo-44100.wav`
+* `vad-go-mono-32000.wav`
+
+## Adding test
+
+The following is the current practice of torchaudio test suite.
+
+1. Unless the tests are related to I/O, use synthetic data. [`common_utils`](./common_utils) has some data generator functions.
+1. When you add a new test case, use `common_utils.TorchaudioTestCase` as base class unless you are writing tests that are common to CPU / CUDA.
+  - Set class memeber `dtype`, `device` and `backend` for the desired behavior.
+  - If you do not set `backend` value in your test suite, then I/O functions will be unassigned and attempt to load/save file will fail.
+  - For `backend` value, in addition to available backends, you can also provide the value "default" and backend will be picked automatically based on availability.
+1. If you are writing tests that should pass on diffrent dtype/devices, write a common class inheriting `common_utils.TestBaseMixin`, then inherit `common_utils.PytorchTestCase` and define class attributes (`dtype` / `device` / `backend`) there. See [Torchscript consistency test implementation](./transforms/torchscript_consistency_impl.py) and test definitions for [CPU](./transforms/torchscript_consistency_cpu_test.py) and [CUDA](./transforms/torchscript_consistency_cuda_test.py) devices.
+1. For numerically comparing Tensors, use `assertEqual` method from torchaudio_unittest.common_utils.PytorchTestCase` class. This method has a better support for a wide variety of Tensor types.
+
+When you add a new feature(functional/transform), consider the following
+
+1. When you add a new feature, please make it Torchscript-able and batch-consistent unless it degrades the performance. Please add the tests to see if the new feature meet these requirements.
+1. If the feature should be numerical compatible against existing software (SoX, Librosa, Kaldi etc), add a corresponding test.
+1. If the new feature is unique to `torchaudio` (not a PyTorch implementation of an existing Software functionality), consider adding correctness tests (wheather the expected output is produced for the set of input) under the corresponding test module (`test_functional.py`, `test_transforms.py`).

test/torchaudio_unittest/__init__.py

+try:
+    from . import fb  # noqa
+except Exception:
+    pass

test/torchaudio_unittest/assets/VCTK-Corpus/txt/p224/p224_002.txt

+VCTK Test.

test/torchaudio_unittest/assets/io/generate_opus.py

+"""Generate opus file for testing load functions"""
+
+import argparse
+import subprocess
+
+import scipy.io.wavfile
+import torch
+
+
+def _parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate opus files for test'
+    )
+    parser.add_argument('--num-channels', required=True, type=int)
+    parser.add_argument('--compression-level', required=True, type=int, choices=list(range(11)))
+    parser.add_argument('--bitrate', default='96k')
+    return parser.parse_args()
+
+
+def convert_to_opus(
+        src_path, dst_path,
+        *, bitrate, compression_level):
+    """Convert audio file with `ffmpeg` command."""
+    command = ['ffmpeg', '-y', '-i', src_path, '-c:a', 'libopus', '-b:a', bitrate]
+    if compression_level is not None:
+        command += ['-compression_level', str(compression_level)]
+    command += [dst_path]
+    print(' '.join(command))
+    subprocess.run(command, check=True)
+
+
+def _generate(num_channels, compression_level, bitrate):
+    org_path = 'original.wav'
+    ops_path = f'{bitrate}_{compression_level}_{num_channels}ch.opus'
+
+    # Note: ffmpeg forces sample rate 48k Hz for opus https://stackoverflow.com/a/39186779
+    # 1. generate original wav
+    data = torch.linspace(-32768, 32767, 32768, dtype=torch.int16).repeat([num_channels, 1]).t()
+    scipy.io.wavfile.write(org_path, 48000, data.numpy())
+    # 2. convert to opus
+    convert_to_opus(org_path, ops_path, bitrate=bitrate, compression_level=compression_level)
+
+
+def _main():
+    args = _parse_args()
+    _generate(args.num_channels, args.compression_level, args.bitrate)
+
+
+if __name__ == '__main__':
+    _main()

test/torchaudio_unittest/assets/kaldi_test_fbank_args.jsonl

+{"blackman_coeff": 0.0939, "energy_floor": 4.5062, "frame_length": 1.0625, "frame_shift": 0.6875, "high_freq": 1841, "htk_compat": true, "low_freq": 479, "num_mel_bins": 5, "preemphasis_coefficient": 0.84, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "use_log_fbank": true, "use_power": false, "vtln_high": 1832, "vtln_low": 1824, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 0.166, "energy_floor": 1.7875, "frame_length": 1.125, "frame_shift": 0.5, "high_freq": 4999, "htk_compat": true, "low_freq": 1740, "num_mel_bins": 6, "preemphasis_coefficient": 0.29, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "use_log_fbank": false, "use_power": true, "vtln_high": 4587, "vtln_low": 2289, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 0.2215, "energy_floor": 1.3444, "frame_length": 1.125, "frame_shift": 0.75, "high_freq": 7468, "htk_compat": true, "low_freq": 87, "num_mel_bins": 5, "preemphasis_coefficient": 0.17, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "use_energy": true, "use_log_fbank": false, "use_power": false, "vtln_high": 1700, "vtln_low": 870, "vtln_warp": 0.3104, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 0.2512, "energy_floor": 0.2607, "frame_length": 0.875, "frame_shift": 0.875, "high_freq": 7380, "htk_compat": true, "low_freq": 4471, "num_mel_bins": 5, "preemphasis_coefficient": 0.76, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "use_log_fbank": false, "use_power": true, "vtln_high": 7138, "vtln_low": 5172, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 0.2834, "energy_floor": 1.7885, "frame_length": 1.1875, "frame_shift": 0.9375, "high_freq": 5385, "htk_compat": false, "low_freq": 2579, "num_mel_bins": 6, "preemphasis_coefficient": 0.82, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "use_log_fbank": true, "use_power": true, "vtln_high": 4782, "vtln_low": 4492, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 0.3188, "energy_floor": 1.6288, "frame_length": 1.0, "frame_shift": 0.5, "high_freq": 6258, "htk_compat": true, "low_freq": 2043, "num_mel_bins": 4, "preemphasis_coefficient": 0.57, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "use_energy": false, "use_log_fbank": true, "use_power": true, "vtln_high": 5274, "vtln_low": 3268, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 0.3637, "energy_floor": 4.7928, "frame_length": 1.0, "frame_shift": 0.5625, "high_freq": 7671, "htk_compat": false, "low_freq": 2385, "num_mel_bins": 5, "preemphasis_coefficient": 0.81, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "use_log_fbank": false, "use_power": true, "vtln_high": 6881, "vtln_low": 4659, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 0.4702, "energy_floor": 2.668, "frame_length": 1.0, "frame_shift": 1.0, "high_freq": 7231, "htk_compat": true, "low_freq": 1515, "num_mel_bins": 4, "preemphasis_coefficient": 0.92, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": true, "use_energy": false, "use_log_fbank": false, "use_power": true, "vtln_high": 6506, "vtln_low": 2549, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 0.5988, "energy_floor": 0.8014, "frame_length": 1.125, "frame_shift": 0.875, "high_freq": 3663, "htk_compat": true, "low_freq": 1941, "num_mel_bins": 6, "preemphasis_coefficient": 0.59, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "use_log_fbank": false, "use_power": false, "vtln_high": 3373, "vtln_low": 3354, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 0.6421, "energy_floor": 2.1404, "frame_length": 0.75, "frame_shift": 1.0625, "high_freq": 6031, "htk_compat": false, "low_freq": 57, "num_mel_bins": 4, "preemphasis_coefficient": 0.03, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "use_log_fbank": false, "use_power": true, "vtln_high": 5417, "vtln_low": 1170, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 0.674, "energy_floor": 1.3778, "frame_length": 1.0, "frame_shift": 0.875, "high_freq": 6623, "htk_compat": true, "low_freq": 2402, "num_mel_bins": 7, "preemphasis_coefficient": 0.5, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "use_log_fbank": false, "use_power": true, "vtln_high": 6491, "vtln_low": 6262, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 0.7979, "energy_floor": 1.4223, "frame_length": 1.125, "frame_shift": 0.3125, "high_freq": 2534, "htk_compat": false, "low_freq": 810, "num_mel_bins": 4, "preemphasis_coefficient": 0.77, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "use_log_fbank": false, "use_power": true, "vtln_high": 2494, "vtln_low": 2015, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 0.8161, "energy_floor": 1.2937, "frame_length": 0.9375, "frame_shift": 0.125, "high_freq": 5030, "htk_compat": false, "low_freq": 966, "num_mel_bins": 6, "preemphasis_coefficient": 0.03, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "use_log_fbank": true, "use_power": true, "vtln_high": 4652, "vtln_low": 2559, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 0.8873, "energy_floor": 1.2866, "frame_length": 1.125, "frame_shift": 0.4375, "high_freq": 5558, "htk_compat": true, "low_freq": 1464, "num_mel_bins": 8, "preemphasis_coefficient": 0.77, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "use_log_fbank": false, "use_power": false, "vtln_high": 4613, "vtln_low": 4001, "vtln_warp": 1.4073, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 0.8997, "energy_floor": 2.8795, "frame_length": 0.875, "frame_shift": 0.5, "high_freq": 3383, "htk_compat": false, "low_freq": 259, "num_mel_bins": 4, "preemphasis_coefficient": 0.08, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "use_log_fbank": true, "use_power": false, "vtln_high": 1175, "vtln_low": 1038, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 0.9113, "energy_floor": 0.9909, "frame_length": 0.6875, "frame_shift": 0.375, "high_freq": 7562, "htk_compat": true, "low_freq": 3978, "num_mel_bins": 4, "preemphasis_coefficient": 0.03, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": false, "use_log_fbank": true, "use_power": true, "vtln_high": 6483, "vtln_low": 5671, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 0.9312, "energy_floor": 3.3768, "frame_length": 0.8125, "frame_shift": 1.125, "high_freq": 5824, "htk_compat": false, "low_freq": 1366, "num_mel_bins": 6, "preemphasis_coefficient": 0.28, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": false, "use_log_fbank": true, "use_power": true, "vtln_high": 3917, "vtln_low": 1620, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 0.9472, "energy_floor": 2.4134, "frame_length": 0.75, "frame_shift": 1.0, "high_freq": 7959, "htk_compat": false, "low_freq": 1770, "num_mel_bins": 6, "preemphasis_coefficient": 0.12, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "use_log_fbank": false, "use_power": true, "vtln_high": 6874, "vtln_low": 5861, "vtln_warp": 1.1718, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 0.9483, "energy_floor": 4.0177, "frame_length": 1.125, "frame_shift": 1.125, "high_freq": 7854, "htk_compat": false, "low_freq": 4793, "num_mel_bins": 5, "preemphasis_coefficient": 0.47, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "use_energy": true, "use_log_fbank": false, "use_power": false, "vtln_high": 5868, "vtln_low": 5848, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 0.9631, "energy_floor": 3.3222, "frame_length": 1.0, "frame_shift": 0.5, "high_freq": 7662, "htk_compat": true, "low_freq": 1833, "num_mel_bins": 6, "preemphasis_coefficient": 0.71, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": true, "use_energy": false, "use_log_fbank": true, "use_power": true, "vtln_high": 6204, "vtln_low": 5887, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 0.982, "energy_floor": 1.668, "frame_length": 0.75, "frame_shift": 0.1875, "high_freq": 6788, "htk_compat": false, "low_freq": 1968, "num_mel_bins": 4, "preemphasis_coefficient": 0.14, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "use_log_fbank": true, "use_power": false, "vtln_high": 2114, "vtln_low": 2024, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 1.0183, "energy_floor": 2.1572, "frame_length": 1.0625, "frame_shift": 0.375, "high_freq": 2018, "htk_compat": true, "low_freq": 317, "num_mel_bins": 6, "preemphasis_coefficient": 0.14, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "use_log_fbank": false, "use_power": false, "vtln_high": 1118, "vtln_low": 947, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 1.0269, "energy_floor": 0.3681, "frame_length": 1.125, "frame_shift": 0.5625, "high_freq": 4897, "htk_compat": true, "low_freq": 543, "num_mel_bins": 4, "preemphasis_coefficient": 0.57, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "use_log_fbank": false, "use_power": false, "vtln_high": 1226, "vtln_low": 960, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 1.0298, "energy_floor": 2.249, "frame_length": 1.125, "frame_shift": 0.25, "high_freq": 2031, "htk_compat": true, "low_freq": 257, "num_mel_bins": 5, "preemphasis_coefficient": 0.65, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "use_log_fbank": false, "use_power": true, "vtln_high": 1731, "vtln_low": 1582, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 1.2222, "energy_floor": 0.0582, "frame_length": 1.1875, "frame_shift": 0.8125, "high_freq": 6633, "htk_compat": false, "low_freq": 1117, "num_mel_bins": 8, "preemphasis_coefficient": 0.96, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "use_log_fbank": true, "use_power": false, "vtln_high": 4191, "vtln_low": 3264, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 1.2251, "energy_floor": 0.4403, "frame_length": 0.5625, "frame_shift": 0.6875, "high_freq": 3192, "htk_compat": false, "low_freq": 599, "num_mel_bins": 4, "preemphasis_coefficient": 0.75, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": false, "use_log_fbank": false, "use_power": true, "vtln_high": 3183, "vtln_low": 2975, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 1.2278, "energy_floor": 1.4848, "frame_length": 0.6875, "frame_shift": 0.625, "high_freq": 5785, "htk_compat": true, "low_freq": 289, "num_mel_bins": 4, "preemphasis_coefficient": 0.58, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "use_log_fbank": false, "use_power": true, "vtln_high": 4062, "vtln_low": 3715, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 1.3199, "energy_floor": 1.1137, "frame_length": 1.125, "frame_shift": 0.6875, "high_freq": 6702, "htk_compat": true, "low_freq": 390, "num_mel_bins": 6, "preemphasis_coefficient": 0.54, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": true, "use_energy": false, "use_log_fbank": true, "use_power": false, "vtln_high": 4426, "vtln_low": 2811, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 1.3325, "energy_floor": 2.6552, "frame_length": 1.0, "frame_shift": 1.0625, "high_freq": 6444, "htk_compat": true, "low_freq": 759, "num_mel_bins": 4, "preemphasis_coefficient": 0.67, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "use_log_fbank": false, "use_power": false, "vtln_high": 6065, "vtln_low": 4599, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 1.3426, "energy_floor": 1.5712, "frame_length": 1.1875, "frame_shift": 1.0, "high_freq": 7444, "htk_compat": false, "low_freq": 1986, "num_mel_bins": 6, "preemphasis_coefficient": 0.46, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "use_log_fbank": true, "use_power": true, "vtln_high": 4787, "vtln_low": 3163, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 1.4359, "energy_floor": 1.2709, "frame_length": 1.0, "frame_shift": 0.5625, "high_freq": 7657, "htk_compat": true, "low_freq": 1017, "num_mel_bins": 5, "preemphasis_coefficient": 0.93, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "use_log_fbank": false, "use_power": true, "vtln_high": 4228, "vtln_low": 2903, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 1.4621, "energy_floor": 1.2891, "frame_length": 0.875, "frame_shift": 1.0625, "high_freq": 6324, "htk_compat": true, "low_freq": 408, "num_mel_bins": 7, "preemphasis_coefficient": 0.09, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "use_log_fbank": false, "use_power": false, "vtln_high": 6163, "vtln_low": 5973, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 1.4751, "energy_floor": 2.3567, "frame_length": 1.1875, "frame_shift": 1.0, "high_freq": 7115, "htk_compat": false, "low_freq": 4236, "num_mel_bins": 5, "preemphasis_coefficient": 0.65, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "use_log_fbank": true, "use_power": false, "vtln_high": 6523, "vtln_low": 5708, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 1.4883, "energy_floor": 4.1237, "frame_length": 0.75, "frame_shift": 0.25, "high_freq": 5670, "htk_compat": true, "low_freq": 766, "num_mel_bins": 6, "preemphasis_coefficient": 0.29, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "use_log_fbank": false, "use_power": false, "vtln_high": 5479, "vtln_low": 4173, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 1.493, "energy_floor": 1.4719, "frame_length": 1.125, "frame_shift": 0.25, "high_freq": 7805, "htk_compat": true, "low_freq": 5052, "num_mel_bins": 4, "preemphasis_coefficient": 0.9, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "use_energy": true, "use_log_fbank": false, "use_power": false, "vtln_high": 7300, "vtln_low": 5299, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 1.5718, "energy_floor": 3.5447, "frame_length": 0.625, "frame_shift": 0.1875, "high_freq": 6777, "htk_compat": true, "low_freq": 938, "num_mel_bins": 4, "preemphasis_coefficient": 0.69, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "use_energy": true, "use_log_fbank": true, "use_power": false, "vtln_high": 4540, "vtln_low": 3168, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 1.5786, "energy_floor": 1.9016, "frame_length": 1.1875, "frame_shift": 0.75, "high_freq": 5812, "htk_compat": true, "low_freq": 3000, "num_mel_bins": 4, "preemphasis_coefficient": 0.14, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "use_log_fbank": true, "use_power": false, "vtln_high": 4930, "vtln_low": 4316, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 1.6134, "energy_floor": 0.6389, "frame_length": 1.0625, "frame_shift": 0.8125, "high_freq": 7384, "htk_compat": false, "low_freq": 184, "num_mel_bins": 7, "preemphasis_coefficient": 0.08, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "use_log_fbank": false, "use_power": true, "vtln_high": 2759, "vtln_low": 306, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 1.6312, "energy_floor": 2.6556, "frame_length": 0.625, "frame_shift": 0.4375, "high_freq": 5589, "htk_compat": false, "low_freq": 1049, "num_mel_bins": 5, "preemphasis_coefficient": 0.8, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "use_energy": false, "use_log_fbank": false, "use_power": false, "vtln_high": 3816, "vtln_low": 1550, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 1.7515, "energy_floor": 0.5964, "frame_length": 1.0625, "frame_shift": 1.0, "high_freq": 4349, "htk_compat": true, "low_freq": 702, "num_mel_bins": 5, "preemphasis_coefficient": 0.36, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": true, "use_log_fbank": false, "use_power": false, "vtln_high": 4168, "vtln_low": 1531, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 1.8179, "energy_floor": 1.3295, "frame_length": 0.5625, "frame_shift": 0.6875, "high_freq": 4510, "htk_compat": false, "low_freq": 122, "num_mel_bins": 4, "preemphasis_coefficient": 0.56, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "use_log_fbank": false, "use_power": false, "vtln_high": 4365, "vtln_low": 3721, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 1.9387, "energy_floor": 4.7991, "frame_length": 1.0, "frame_shift": 0.375, "high_freq": 6123, "htk_compat": true, "low_freq": 740, "num_mel_bins": 6, "preemphasis_coefficient": 0.21, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "use_energy": true, "use_log_fbank": true, "use_power": true, "vtln_high": 3970, "vtln_low": 3355, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 2.0479, "energy_floor": 1.4296, "frame_length": 1.0625, "frame_shift": 0.6875, "high_freq": 7818, "htk_compat": true, "low_freq": 1628, "num_mel_bins": 8, "preemphasis_coefficient": 0.27, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "use_log_fbank": false, "use_power": true, "vtln_high": 7749, "vtln_low": 7478, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 2.0809, "energy_floor": 1.9752, "frame_length": 0.75, "frame_shift": 1.1875, "high_freq": 5933, "htk_compat": false, "low_freq": 666, "num_mel_bins": 5, "preemphasis_coefficient": 0.72, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": true, "use_energy": true, "use_log_fbank": true, "use_power": true, "vtln_high": 5348, "vtln_low": 4645, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 2.1098, "energy_floor": 2.1356, "frame_length": 1.0625, "frame_shift": 0.9375, "high_freq": 7825, "htk_compat": true, "low_freq": 408, "num_mel_bins": 4, "preemphasis_coefficient": 0.37, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "use_log_fbank": false, "use_power": false, "vtln_high": 5297, "vtln_low": 2747, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 2.1463, "energy_floor": 0.3422, "frame_length": 0.8125, "frame_shift": 0.5, "high_freq": 6892, "htk_compat": true, "low_freq": 65, "num_mel_bins": 4, "preemphasis_coefficient": 0.47, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "use_log_fbank": false, "use_power": true, "vtln_high": 4178, "vtln_low": 2891, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 2.1768, "energy_floor": 3.782, "frame_length": 0.75, "frame_shift": 0.8125, "high_freq": 7063, "htk_compat": false, "low_freq": 2703, "num_mel_bins": 4, "preemphasis_coefficient": 0.99, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": true, "use_energy": false, "use_log_fbank": false, "use_power": true, "vtln_high": 6819, "vtln_low": 3764, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 2.1902, "energy_floor": 4.9973, "frame_length": 1.125, "frame_shift": 0.5, "high_freq": 7066, "htk_compat": false, "low_freq": 1699, "num_mel_bins": 4, "preemphasis_coefficient": 0.95, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "use_log_fbank": false, "use_power": false, "vtln_high": 5452, "vtln_low": 5271, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 2.239, "energy_floor": 2.9557, "frame_length": 1.0625, "frame_shift": 0.875, "high_freq": 7615, "htk_compat": true, "low_freq": 4707, "num_mel_bins": 7, "preemphasis_coefficient": 1.0, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "use_log_fbank": true, "use_power": true, "vtln_high": 6790, "vtln_low": 6501, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 2.3199, "energy_floor": 0.8311, "frame_length": 0.9375, "frame_shift": 0.3125, "high_freq": 6738, "htk_compat": true, "low_freq": 1787, "num_mel_bins": 5, "preemphasis_coefficient": 0.83, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "use_log_fbank": false, "use_power": true, "vtln_high": 6635, "vtln_low": 6360, "vtln_warp": 0.7856, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 2.4071, "energy_floor": 2.7889, "frame_length": 0.9375, "frame_shift": 0.8125, "high_freq": 6598, "htk_compat": true, "low_freq": 2373, "num_mel_bins": 5, "preemphasis_coefficient": 0.2, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": false, "use_log_fbank": true, "use_power": true, "vtln_high": 4565, "vtln_low": 3464, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 2.4586, "energy_floor": 3.3176, "frame_length": 0.625, "frame_shift": 0.75, "high_freq": 7380, "htk_compat": false, "low_freq": 4248, "num_mel_bins": 4, "preemphasis_coefficient": 0.59, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": false, "use_log_fbank": false, "use_power": true, "vtln_high": 7263, "vtln_low": 6361, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 2.6039, "energy_floor": 1.1619, "frame_length": 0.75, "frame_shift": 0.5625, "high_freq": 6578, "htk_compat": true, "low_freq": 551, "num_mel_bins": 7, "preemphasis_coefficient": 0.16, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "use_log_fbank": true, "use_power": true, "vtln_high": 4974, "vtln_low": 3139, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 2.6068, "energy_floor": 3.6411, "frame_length": 1.125, "frame_shift": 1.125, "high_freq": 3078, "htk_compat": false, "low_freq": 1003, "num_mel_bins": 5, "preemphasis_coefficient": 0.12, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "use_log_fbank": true, "use_power": false, "vtln_high": 2920, "vtln_low": 1121, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 2.6192, "energy_floor": 1.7209, "frame_length": 1.0625, "frame_shift": 0.625, "high_freq": 2275, "htk_compat": false, "low_freq": 367, "num_mel_bins": 5, "preemphasis_coefficient": 0.27, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "use_log_fbank": false, "use_power": true, "vtln_high": 1293, "vtln_low": 771, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 2.6578, "energy_floor": 0.9137, "frame_length": 1.1875, "frame_shift": 1.0, "high_freq": 4898, "htk_compat": true, "low_freq": 886, "num_mel_bins": 7, "preemphasis_coefficient": 0.57, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": true, "use_log_fbank": false, "use_power": false, "vtln_high": 3704, "vtln_low": 1013, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 2.7083, "energy_floor": 2.8806, "frame_length": 0.75, "frame_shift": 0.9375, "high_freq": 6605, "htk_compat": false, "low_freq": 3759, "num_mel_bins": 4, "preemphasis_coefficient": 0.9, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "use_log_fbank": false, "use_power": true, "vtln_high": 6542, "vtln_low": 5821, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 2.7704, "energy_floor": 4.5251, "frame_length": 1.125, "frame_shift": 0.875, "high_freq": 3819, "htk_compat": true, "low_freq": 787, "num_mel_bins": 5, "preemphasis_coefficient": 0.23, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "use_log_fbank": false, "use_power": false, "vtln_high": 3368, "vtln_low": 3286, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 2.9255, "energy_floor": 3.4363, "frame_length": 1.125, "frame_shift": 1.0, "high_freq": 7660, "htk_compat": false, "low_freq": 5020, "num_mel_bins": 5, "preemphasis_coefficient": 0.09, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "use_log_fbank": false, "use_power": false, "vtln_high": 7470, "vtln_low": 6783, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 3.0009, "energy_floor": 1.845, "frame_length": 1.0625, "frame_shift": 0.75, "high_freq": 5812, "htk_compat": true, "low_freq": 1287, "num_mel_bins": 6, "preemphasis_coefficient": 0.22, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "use_log_fbank": false, "use_power": false, "vtln_high": 5573, "vtln_low": 4642, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 3.2195, "energy_floor": 2.9858, "frame_length": 1.0625, "frame_shift": 0.0625, "high_freq": 6899, "htk_compat": true, "low_freq": 4117, "num_mel_bins": 6, "preemphasis_coefficient": 0.85, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "use_log_fbank": true, "use_power": true, "vtln_high": 5077, "vtln_low": 4977, "vtln_warp": 0.8739, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 3.3208, "energy_floor": 1.5569, "frame_length": 1.0, "frame_shift": 0.3125, "high_freq": 4556, "htk_compat": false, "low_freq": 334, "num_mel_bins": 5, "preemphasis_coefficient": 0.02, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "use_log_fbank": true, "use_power": false, "vtln_high": 2831, "vtln_low": 696, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 3.3976, "energy_floor": 3.9462, "frame_length": 1.1875, "frame_shift": 0.5625, "high_freq": 6513, "htk_compat": false, "low_freq": 3398, "num_mel_bins": 8, "preemphasis_coefficient": 0.38, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": false, "use_log_fbank": true, "use_power": false, "vtln_high": 5827, "vtln_low": 5388, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 3.5842, "energy_floor": 1.2264, "frame_length": 0.9375, "frame_shift": 1.0, "high_freq": 7744, "htk_compat": false, "low_freq": 195, "num_mel_bins": 5, "preemphasis_coefficient": 0.62, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "use_log_fbank": true, "use_power": false, "vtln_high": 7667, "vtln_low": 2993, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 3.5889, "energy_floor": 3.3559, "frame_length": 1.0, "frame_shift": 1.1875, "high_freq": 7354, "htk_compat": true, "low_freq": 997, "num_mel_bins": 5, "preemphasis_coefficient": 0.98, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "use_log_fbank": false, "use_power": false, "vtln_high": 7088, "vtln_low": 6494, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 3.5936, "energy_floor": 2.1701, "frame_length": 1.0625, "frame_shift": 1.0625, "high_freq": 7407, "htk_compat": true, "low_freq": 3649, "num_mel_bins": 5, "preemphasis_coefficient": 0.65, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "use_log_fbank": true, "use_power": true, "vtln_high": 6878, "vtln_low": 6036, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 3.7002, "energy_floor": 3.567, "frame_length": 1.1875, "frame_shift": 0.625, "high_freq": 4479, "htk_compat": true, "low_freq": 2240, "num_mel_bins": 6, "preemphasis_coefficient": 0.73, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "use_log_fbank": false, "use_power": true, "vtln_high": 4084, "vtln_low": 3955, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 3.7078, "energy_floor": 0.3892, "frame_length": 0.8125, "frame_shift": 0.3125, "high_freq": 7876, "htk_compat": true, "low_freq": 2830, "num_mel_bins": 7, "preemphasis_coefficient": 0.46, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "use_log_fbank": false, "use_power": true, "vtln_high": 4726, "vtln_low": 2918, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 3.7585, "energy_floor": 2.9425, "frame_length": 1.1875, "frame_shift": 1.0, "high_freq": 3277, "htk_compat": true, "low_freq": 2244, "num_mel_bins": 4, "preemphasis_coefficient": 0.76, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "use_log_fbank": false, "use_power": false, "vtln_high": 3158, "vtln_low": 2865, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 3.7772, "energy_floor": 2.8211, "frame_length": 1.0, "frame_shift": 0.1875, "high_freq": 3747, "htk_compat": false, "low_freq": 1244, "num_mel_bins": 4, "preemphasis_coefficient": 0.64, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "use_log_fbank": false, "use_power": true, "vtln_high": 3640, "vtln_low": 2770, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 3.8514, "energy_floor": 3.7933, "frame_length": 1.0625, "frame_shift": 0.5, "high_freq": 4136, "htk_compat": true, "low_freq": 1010, "num_mel_bins": 6, "preemphasis_coefficient": 0.12, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "use_log_fbank": true, "use_power": false, "vtln_high": 2408, "vtln_low": 1892, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 3.8677, "energy_floor": 2.5418, "frame_length": 1.0625, "frame_shift": 0.0625, "high_freq": 3496, "htk_compat": true, "low_freq": 309, "num_mel_bins": 4, "preemphasis_coefficient": 0.47, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": false, "use_log_fbank": true, "use_power": false, "vtln_high": 1490, "vtln_low": 645, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 3.9033, "energy_floor": 2.677, "frame_length": 1.125, "frame_shift": 0.875, "high_freq": 5699, "htk_compat": false, "low_freq": 2960, "num_mel_bins": 7, "preemphasis_coefficient": 0.52, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "use_log_fbank": false, "use_power": false, "vtln_high": 5458, "vtln_low": 5400, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 4.0371, "energy_floor": 3.7559, "frame_length": 1.0625, "frame_shift": 0.8125, "high_freq": 4280, "htk_compat": false, "low_freq": 1207, "num_mel_bins": 4, "preemphasis_coefficient": 0.12, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "use_log_fbank": false, "use_power": true, "vtln_high": 3686, "vtln_low": 2010, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 4.0757, "energy_floor": 4.7442, "frame_length": 0.875, "frame_shift": 1.125, "high_freq": 6363, "htk_compat": true, "low_freq": 1524, "num_mel_bins": 4, "preemphasis_coefficient": 0.32, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "use_energy": true, "use_log_fbank": true, "use_power": false, "vtln_high": 5178, "vtln_low": 4628, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 4.1248, "energy_floor": 2.5255, "frame_length": 0.6875, "frame_shift": 0.6875, "high_freq": 3527, "htk_compat": true, "low_freq": 1701, "num_mel_bins": 4, "preemphasis_coefficient": 0.43, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "use_log_fbank": false, "use_power": true, "vtln_high": 2884, "vtln_low": 1773, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 4.18, "energy_floor": 4.6907, "frame_length": 1.1875, "frame_shift": 0.5625, "high_freq": 7316, "htk_compat": true, "low_freq": 3483, "num_mel_bins": 8, "preemphasis_coefficient": 0.61, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": true, "use_log_fbank": true, "use_power": true, "vtln_high": 5820, "vtln_low": 4635, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 4.2251, "energy_floor": 0.5, "frame_length": 0.875, "frame_shift": 0.625, "high_freq": 7515, "htk_compat": false, "low_freq": 1751, "num_mel_bins": 5, "preemphasis_coefficient": 0.64, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "use_log_fbank": true, "use_power": false, "vtln_high": 7486, "vtln_low": 4238, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 4.3011, "energy_floor": 1.4663, "frame_length": 1.125, "frame_shift": 0.9375, "high_freq": 7804, "htk_compat": false, "low_freq": 1208, "num_mel_bins": 6, "preemphasis_coefficient": 0.18, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "use_log_fbank": true, "use_power": false, "vtln_high": 7421, "vtln_low": 3707, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 4.3252, "energy_floor": 0.7732, "frame_length": 0.625, "frame_shift": 0.6875, "high_freq": 7389, "htk_compat": false, "low_freq": 2071, "num_mel_bins": 4, "preemphasis_coefficient": 0.08, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "use_log_fbank": false, "use_power": false, "vtln_high": 6900, "vtln_low": 2344, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 4.3693, "energy_floor": 3.9073, "frame_length": 0.875, "frame_shift": 0.9375, "high_freq": 6107, "htk_compat": true, "low_freq": 3905, "num_mel_bins": 4, "preemphasis_coefficient": 0.86, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": true, "use_log_fbank": false, "use_power": true, "vtln_high": 5001, "vtln_low": 4046, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 4.3926, "energy_floor": 2.0617, "frame_length": 0.5625, "frame_shift": 0.0625, "high_freq": 4253, "htk_compat": true, "low_freq": 1367, "num_mel_bins": 5, "preemphasis_coefficient": 0.84, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "use_log_fbank": true, "use_power": false, "vtln_high": 2112, "vtln_low": 1445, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 4.4706, "energy_floor": 1.7516, "frame_length": 1.125, "frame_shift": 1.125, "high_freq": 7645, "htk_compat": false, "low_freq": 225, "num_mel_bins": 6, "preemphasis_coefficient": 0.8, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "use_energy": false, "use_log_fbank": false, "use_power": false, "vtln_high": 3717, "vtln_low": 304, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 4.5385, "energy_floor": 2.1519, "frame_length": 1.125, "frame_shift": 0.0625, "high_freq": 5610, "htk_compat": false, "low_freq": 1239, "num_mel_bins": 7, "preemphasis_coefficient": 0.87, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": true, "use_energy": true, "use_log_fbank": true, "use_power": false, "vtln_high": 2231, "vtln_low": 1432, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 4.6337, "energy_floor": 2.902, "frame_length": 0.875, "frame_shift": 1.125, "high_freq": 5072, "htk_compat": true, "low_freq": 826, "num_mel_bins": 4, "preemphasis_coefficient": 0.37, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "use_log_fbank": false, "use_power": false, "vtln_high": 4253, "vtln_low": 2427, "vtln_warp": 0.7049, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 4.7468, "energy_floor": 2.1835, "frame_length": 0.6875, "frame_shift": 1.0, "high_freq": 5153, "htk_compat": true, "low_freq": 943, "num_mel_bins": 5, "preemphasis_coefficient": 0.94, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "use_log_fbank": false, "use_power": false, "vtln_high": 3287, "vtln_low": 1478, "vtln_warp": 0.9406, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 4.7855, "energy_floor": 2.1377, "frame_length": 0.9375, "frame_shift": 0.8125, "high_freq": 4123, "htk_compat": false, "low_freq": 587, "num_mel_bins": 4, "preemphasis_coefficient": 0.92, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "use_log_fbank": true, "use_power": false, "vtln_high": 2588, "vtln_low": 2346, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 4.964, "energy_floor": 3.4931, "frame_length": 1.1875, "frame_shift": 1.0, "high_freq": 4235, "htk_compat": true, "low_freq": 1036, "num_mel_bins": 4, "preemphasis_coefficient": 0.43, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": true, "use_log_fbank": false, "use_power": false, "vtln_high": 3706, "vtln_low": 2840, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}

test/torchaudio_unittest/assets/kaldi_test_mfcc_args.jsonl

+{"blackman_coeff": 0.013, "energy_floor": 1.8509, "frame_length": 1.1875, "frame_shift": 0.625, "high_freq": 7999, "htk_compat": false, "low_freq": 4330, "num_mel_bins": 5, "preemphasis_coefficient": 0.38, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 8.1048, "vtln_high": 7497, "vtln_low": 7397, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 0.0487, "energy_floor": 1.3641, "frame_length": 1.0, "frame_shift": 0.8125, "high_freq": 7892, "htk_compat": true, "low_freq": 1904, "num_mel_bins": 8, "preemphasis_coefficient": 0.26, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": false, "num_ceps": 5, "cepstral_lifter": 34.0918, "vtln_high": 4400, "vtln_low": 2737, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 0.0577, "energy_floor": 2.4313, "frame_length": 1.0625, "frame_shift": 0.875, "high_freq": 2922, "htk_compat": true, "low_freq": 274, "num_mel_bins": 6, "preemphasis_coefficient": 0.48, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "num_ceps": 5, "cepstral_lifter": 21.3007, "vtln_high": 1352, "vtln_low": 280, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 0.0718, "energy_floor": 1.3071, "frame_length": 1.1875, "frame_shift": 0.5, "high_freq": 3159, "htk_compat": true, "low_freq": 759, "num_mel_bins": 8, "preemphasis_coefficient": 0.04, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "num_ceps": 6, "cepstral_lifter": 2.6493, "vtln_high": 3145, "vtln_low": 3119, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 0.083, "energy_floor": 2.1607, "frame_length": 0.75, "frame_shift": 0.75, "high_freq": 5872, "htk_compat": true, "low_freq": 708, "num_mel_bins": 5, "preemphasis_coefficient": 0.95, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "use_energy": true, "num_ceps": 4, "cepstral_lifter": 24.5097, "vtln_high": 5231, "vtln_low": 3888, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 0.0933, "energy_floor": 1.577, "frame_length": 1.1875, "frame_shift": 1.1875, "high_freq": 7519, "htk_compat": false, "low_freq": 357, "num_mel_bins": 4, "preemphasis_coefficient": 0.5, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 88.0941, "vtln_high": 7042, "vtln_low": 5298, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 0.1048, "energy_floor": 0.5013, "frame_length": 0.75, "frame_shift": 1.0625, "high_freq": 6426, "htk_compat": true, "low_freq": 3613, "num_mel_bins": 5, "preemphasis_coefficient": 0.96, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "num_ceps": 4, "cepstral_lifter": 73.5838, "vtln_high": 5816, "vtln_low": 3997, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 0.1447, "energy_floor": 4.7142, "frame_length": 1.0625, "frame_shift": 0.4375, "high_freq": 7629, "htk_compat": true, "low_freq": 3498, "num_mel_bins": 7, "preemphasis_coefficient": 0.39, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "num_ceps": 3, "cepstral_lifter": 19.4145, "vtln_high": 7169, "vtln_low": 6751, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 0.1473, "energy_floor": 4.9154, "frame_length": 1.125, "frame_shift": 0.875, "high_freq": 3631, "htk_compat": false, "low_freq": 1229, "num_mel_bins": 8, "preemphasis_coefficient": 0.04, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 34.479, "vtln_high": 3390, "vtln_low": 1536, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 0.1485, "energy_floor": 4.275, "frame_length": 0.6875, "frame_shift": 0.75, "high_freq": 5222, "htk_compat": true, "low_freq": 311, "num_mel_bins": 5, "preemphasis_coefficient": 0.31, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 48.7991, "vtln_high": 4833, "vtln_low": 513, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 0.1829, "energy_floor": 4.5358, "frame_length": 0.9375, "frame_shift": 0.9375, "high_freq": 6148, "htk_compat": true, "low_freq": 455, "num_mel_bins": 5, "preemphasis_coefficient": 0.59, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": false, "num_ceps": 3, "cepstral_lifter": 48.6724, "vtln_high": 3138, "vtln_low": 2247, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 0.2002, "energy_floor": 1.4805, "frame_length": 0.9375, "frame_shift": 0.875, "high_freq": 7621, "htk_compat": false, "low_freq": 2232, "num_mel_bins": 5, "preemphasis_coefficient": 0.03, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "num_ceps": 5, "cepstral_lifter": 69.3653, "vtln_high": 7087, "vtln_low": 2800, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 0.2107, "energy_floor": 3.475, "frame_length": 1.125, "frame_shift": 0.8125, "high_freq": 5701, "htk_compat": true, "low_freq": 1629, "num_mel_bins": 4, "preemphasis_coefficient": 0.09, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 77.7066, "vtln_high": 5622, "vtln_low": 5544, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 0.2523, "energy_floor": 0.148, "frame_length": 1.0, "frame_shift": 1.125, "high_freq": 5833, "htk_compat": false, "low_freq": 556, "num_mel_bins": 4, "preemphasis_coefficient": 0.66, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "num_ceps": 4, "cepstral_lifter": 57.0398, "vtln_high": 4519, "vtln_low": 3600, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 0.2959, "energy_floor": 2.3729, "frame_length": 0.625, "frame_shift": 0.5, "high_freq": 6757, "htk_compat": false, "low_freq": 1744, "num_mel_bins": 6, "preemphasis_coefficient": 0.2, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 99.871, "vtln_high": 4957, "vtln_low": 3549, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 0.3642, "energy_floor": 3.5246, "frame_length": 0.4375, "frame_shift": 0.9375, "high_freq": 7942, "htk_compat": false, "low_freq": 3282, "num_mel_bins": 4, "preemphasis_coefficient": 0.52, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "num_ceps": 3, "cepstral_lifter": 74.4735, "vtln_high": 5601, "vtln_low": 4966, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 0.4891, "energy_floor": 1.989, "frame_length": 1.125, "frame_shift": 0.875, "high_freq": 3219, "htk_compat": true, "low_freq": 973, "num_mel_bins": 5, "preemphasis_coefficient": 0.91, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "num_ceps": 4, "cepstral_lifter": 85.357, "vtln_high": 3181, "vtln_low": 3129, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 0.5428, "energy_floor": 1.2368, "frame_length": 0.5625, "frame_shift": 1.0, "high_freq": 6700, "htk_compat": false, "low_freq": 749, "num_mel_bins": 4, "preemphasis_coefficient": 0.86, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 16.2782, "vtln_high": 5573, "vtln_low": 4988, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 0.5495, "energy_floor": 2.9502, "frame_length": 1.1875, "frame_shift": 1.1875, "high_freq": 3873, "htk_compat": true, "low_freq": 1564, "num_mel_bins": 5, "preemphasis_coefficient": 0.05, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "num_ceps": 5, "cepstral_lifter": 59.0075, "vtln_high": 3870, "vtln_low": 3750, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 0.6457, "energy_floor": 2.0199, "frame_length": 0.875, "frame_shift": 0.8125, "high_freq": 6510, "htk_compat": false, "low_freq": 1482, "num_mel_bins": 4, "preemphasis_coefficient": 0.26, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 49.7663, "vtln_high": 5461, "vtln_low": 4039, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 0.7031, "energy_floor": 4.038, "frame_length": 1.125, "frame_shift": 0.6875, "high_freq": 6433, "htk_compat": true, "low_freq": 2336, "num_mel_bins": 8, "preemphasis_coefficient": 0.7, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": true, "use_energy": false, "num_ceps": 3, "cepstral_lifter": 18.0061, "vtln_high": 5902, "vtln_low": 3191, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 0.7197, "energy_floor": 3.2075, "frame_length": 1.0625, "frame_shift": 0.25, "high_freq": 4448, "htk_compat": true, "low_freq": 378, "num_mel_bins": 4, "preemphasis_coefficient": 0.31, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 71.591, "vtln_high": 3497, "vtln_low": 3331, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 0.7238, "energy_floor": 1.9087, "frame_length": 1.1875, "frame_shift": 0.75, "high_freq": 5457, "htk_compat": true, "low_freq": 1775, "num_mel_bins": 7, "preemphasis_coefficient": 0.48, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 29.2858, "vtln_high": 5349, "vtln_low": 3987, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 0.7507, "energy_floor": 0.2754, "frame_length": 0.875, "frame_shift": 0.8125, "high_freq": 6405, "htk_compat": false, "low_freq": 1972, "num_mel_bins": 5, "preemphasis_coefficient": 0.83, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": true, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 52.5962, "vtln_high": 4597, "vtln_low": 4417, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 0.7954, "energy_floor": 0.3451, "frame_length": 1.1875, "frame_shift": 0.625, "high_freq": 4078, "htk_compat": false, "low_freq": 796, "num_mel_bins": 8, "preemphasis_coefficient": 0.47, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "num_ceps": 8, "cepstral_lifter": 42.3128, "vtln_high": 2299, "vtln_low": 1094, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 0.8432, "energy_floor": 1.3765, "frame_length": 0.9375, "frame_shift": 1.1875, "high_freq": 6004, "htk_compat": true, "low_freq": 2302, "num_mel_bins": 4, "preemphasis_coefficient": 0.6, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": true, "num_ceps": 4, "cepstral_lifter": 74.1116, "vtln_high": 4129, "vtln_low": 2898, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 0.8549, "energy_floor": 4.8924, "frame_length": 0.3125, "frame_shift": 1.125, "high_freq": 5643, "htk_compat": true, "low_freq": 956, "num_mel_bins": 4, "preemphasis_coefficient": 0.32, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 76.0384, "vtln_high": 2672, "vtln_low": 1762, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 0.9502, "energy_floor": 1.9738, "frame_length": 0.75, "frame_shift": 0.25, "high_freq": 7773, "htk_compat": true, "low_freq": 1205, "num_mel_bins": 7, "preemphasis_coefficient": 0.5, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 62.9038, "vtln_high": 7460, "vtln_low": 7174, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 1.0759, "energy_floor": 1.9132, "frame_length": 1.1875, "frame_shift": 0.625, "high_freq": 3529, "htk_compat": false, "low_freq": 227, "num_mel_bins": 8, "preemphasis_coefficient": 0.26, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "num_ceps": 4, "cepstral_lifter": 4.1559, "vtln_high": 1976, "vtln_low": 972, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 1.147, "energy_floor": 4.3972, "frame_length": 0.9375, "frame_shift": 0.75, "high_freq": 6393, "htk_compat": true, "low_freq": 2451, "num_mel_bins": 4, "preemphasis_coefficient": 0.06, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "num_ceps": 4, "cepstral_lifter": 67.4571, "vtln_high": 5460, "vtln_low": 3654, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 1.2069, "energy_floor": 0.4607, "frame_length": 1.125, "frame_shift": 0.5625, "high_freq": 5864, "htk_compat": true, "low_freq": 1512, "num_mel_bins": 7, "preemphasis_coefficient": 0.17, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 33.0194, "vtln_high": 5438, "vtln_low": 3920, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 1.3369, "energy_floor": 4.2619, "frame_length": 0.6875, "frame_shift": 0.375, "high_freq": 5307, "htk_compat": true, "low_freq": 666, "num_mel_bins": 6, "preemphasis_coefficient": 0.19, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "num_ceps": 4, "cepstral_lifter": 88.3186, "vtln_high": 4677, "vtln_low": 2590, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 1.3699, "energy_floor": 3.0236, "frame_length": 1.0625, "frame_shift": 0.75, "high_freq": 3720, "htk_compat": true, "low_freq": 1980, "num_mel_bins": 4, "preemphasis_coefficient": 0.13, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 57.6793, "vtln_high": 3441, "vtln_low": 3396, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 1.3763, "energy_floor": 1.6574, "frame_length": 1.125, "frame_shift": 0.8125, "high_freq": 2816, "htk_compat": false, "low_freq": 1021, "num_mel_bins": 4, "preemphasis_coefficient": 0.91, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 45.2819, "vtln_high": 2547, "vtln_low": 1123, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 1.4097, "energy_floor": 4.1523, "frame_length": 0.875, "frame_shift": 0.375, "high_freq": 6164, "htk_compat": false, "low_freq": 987, "num_mel_bins": 4, "preemphasis_coefficient": 0.06, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "num_ceps": 3, "cepstral_lifter": 75.0589, "vtln_high": 5873, "vtln_low": 5807, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 1.4295, "energy_floor": 3.7938, "frame_length": 1.125, "frame_shift": 0.75, "high_freq": 3382, "htk_compat": false, "low_freq": 471, "num_mel_bins": 4, "preemphasis_coefficient": 0.42, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": true, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 78.588, "vtln_high": 3299, "vtln_low": 2540, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 1.4677, "energy_floor": 4.0728, "frame_length": 1.125, "frame_shift": 1.0625, "high_freq": 7698, "htk_compat": true, "low_freq": 569, "num_mel_bins": 6, "preemphasis_coefficient": 0.5, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": true, "use_energy": false, "num_ceps": 3, "cepstral_lifter": 76.8484, "vtln_high": 7453, "vtln_low": 7251, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 1.4979, "energy_floor": 1.1705, "frame_length": 1.1875, "frame_shift": 0.375, "high_freq": 4474, "htk_compat": true, "low_freq": 1123, "num_mel_bins": 7, "preemphasis_coefficient": 0.09, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "num_ceps": 4, "cepstral_lifter": 38.6407, "vtln_high": 3043, "vtln_low": 2934, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 1.555, "energy_floor": 1.8728, "frame_length": 0.875, "frame_shift": 0.9375, "high_freq": 5191, "htk_compat": true, "low_freq": 2262, "num_mel_bins": 4, "preemphasis_coefficient": 0.24, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 11.982, "vtln_high": 4607, "vtln_low": 4483, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 1.5626, "energy_floor": 3.7117, "frame_length": 1.125, "frame_shift": 0.125, "high_freq": 3008, "htk_compat": true, "low_freq": 534, "num_mel_bins": 5, "preemphasis_coefficient": 0.65, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": true, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 75.6661, "vtln_high": 2592, "vtln_low": 1621, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 1.5707, "energy_floor": 3.0409, "frame_length": 0.75, "frame_shift": 0.625, "high_freq": 7441, "htk_compat": true, "low_freq": 1554, "num_mel_bins": 6, "preemphasis_coefficient": 0.95, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "num_ceps": 4, "cepstral_lifter": 80.1563, "vtln_high": 7152, "vtln_low": 6151, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 1.5966, "energy_floor": 2.3442, "frame_length": 0.5625, "frame_shift": 0.5, "high_freq": 7944, "htk_compat": true, "low_freq": 1616, "num_mel_bins": 5, "preemphasis_coefficient": 0.49, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 80.8779, "vtln_high": 5720, "vtln_low": 4080, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 1.6229, "energy_floor": 2.0519, "frame_length": 1.1875, "frame_shift": 0.3125, "high_freq": 4871, "htk_compat": true, "low_freq": 1567, "num_mel_bins": 4, "preemphasis_coefficient": 0.79, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 42.9569, "vtln_high": 3483, "vtln_low": 3287, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 1.736, "energy_floor": 0.4063, "frame_length": 0.6875, "frame_shift": 0.0625, "high_freq": 6475, "htk_compat": true, "low_freq": 4439, "num_mel_bins": 4, "preemphasis_coefficient": 0.23, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 30.0984, "vtln_high": 5450, "vtln_low": 4909, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 1.7411, "energy_floor": 2.0918, "frame_length": 1.0625, "frame_shift": 0.8125, "high_freq": 6107, "htk_compat": true, "low_freq": 2523, "num_mel_bins": 4, "preemphasis_coefficient": 0.69, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "num_ceps": 3, "cepstral_lifter": 92.6839, "vtln_high": 5085, "vtln_low": 4771, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 1.7439, "energy_floor": 2.3782, "frame_length": 0.875, "frame_shift": 1.1875, "high_freq": 7669, "htk_compat": false, "low_freq": 4499, "num_mel_bins": 4, "preemphasis_coefficient": 0.81, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 95.7035, "vtln_high": 7521, "vtln_low": 7417, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 1.7611, "energy_floor": 4.2965, "frame_length": 0.8125, "frame_shift": 0.6875, "high_freq": 6607, "htk_compat": false, "low_freq": 454, "num_mel_bins": 7, "preemphasis_coefficient": 0.35, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 17.8265, "vtln_high": 6387, "vtln_low": 6105, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 1.7893, "energy_floor": 1.8005, "frame_length": 0.625, "frame_shift": 0.375, "high_freq": 2791, "htk_compat": true, "low_freq": 617, "num_mel_bins": 4, "preemphasis_coefficient": 0.96, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "num_ceps": 4, "cepstral_lifter": 93.405, "vtln_high": 1751, "vtln_low": 1690, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 1.8392, "energy_floor": 4.3711, "frame_length": 0.9375, "frame_shift": 0.75, "high_freq": 6978, "htk_compat": true, "low_freq": 453, "num_mel_bins": 4, "preemphasis_coefficient": 0.48, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "num_ceps": 3, "cepstral_lifter": 42.9768, "vtln_high": 6315, "vtln_low": 3995, "vtln_warp": 1.1059, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 1.9561, "energy_floor": 0.8419, "frame_length": 0.8125, "frame_shift": 1.125, "high_freq": 5308, "htk_compat": false, "low_freq": 1471, "num_mel_bins": 5, "preemphasis_coefficient": 0.62, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 51.0514, "vtln_high": 5221, "vtln_low": 5071, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 1.998, "energy_floor": 1.6949, "frame_length": 1.125, "frame_shift": 0.8125, "high_freq": 4678, "htk_compat": true, "low_freq": 2340, "num_mel_bins": 5, "preemphasis_coefficient": 0.44, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 70.1988, "vtln_high": 4041, "vtln_low": 2424, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 2.0106, "energy_floor": 4.5392, "frame_length": 0.6875, "frame_shift": 0.1875, "high_freq": 4776, "htk_compat": true, "low_freq": 1297, "num_mel_bins": 5, "preemphasis_coefficient": 0.14, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 37.5837, "vtln_high": 3995, "vtln_low": 2991, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 2.0835, "energy_floor": 2.8454, "frame_length": 0.9375, "frame_shift": 0.3125, "high_freq": 7496, "htk_compat": false, "low_freq": 1207, "num_mel_bins": 6, "preemphasis_coefficient": 0.76, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "num_ceps": 6, "cepstral_lifter": 4.5734, "vtln_high": 3935, "vtln_low": 3932, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 2.2801, "energy_floor": 1.7051, "frame_length": 1.1875, "frame_shift": 0.125, "high_freq": 7958, "htk_compat": true, "low_freq": 561, "num_mel_bins": 4, "preemphasis_coefficient": 0.9, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 60.4649, "vtln_high": 7218, "vtln_low": 5709, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 2.315, "energy_floor": 0.4964, "frame_length": 0.5, "frame_shift": 0.4375, "high_freq": 6582, "htk_compat": false, "low_freq": 1010, "num_mel_bins": 4, "preemphasis_coefficient": 0.98, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "num_ceps": 3, "cepstral_lifter": 71.516, "vtln_high": 6157, "vtln_low": 4430, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 2.3236, "energy_floor": 0.7825, "frame_length": 0.8125, "frame_shift": 0.25, "high_freq": 7488, "htk_compat": true, "low_freq": 1363, "num_mel_bins": 4, "preemphasis_coefficient": 0.3, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "num_ceps": 4, "cepstral_lifter": 68.9678, "vtln_high": 3555, "vtln_low": 1851, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 2.3805, "energy_floor": 2.934, "frame_length": 0.75, "frame_shift": 0.25, "high_freq": 6076, "htk_compat": true, "low_freq": 80, "num_mel_bins": 4, "preemphasis_coefficient": 0.85, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 31.0805, "vtln_high": 2257, "vtln_low": 1533, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 2.4091, "energy_floor": 2.8812, "frame_length": 1.125, "frame_shift": 0.9375, "high_freq": 6086, "htk_compat": false, "low_freq": 1210, "num_mel_bins": 5, "preemphasis_coefficient": 0.59, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 96.1612, "vtln_high": 4840, "vtln_low": 1905, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 2.4134, "energy_floor": 2.6379, "frame_length": 1.1875, "frame_shift": 0.375, "high_freq": 3318, "htk_compat": false, "low_freq": 770, "num_mel_bins": 5, "preemphasis_coefficient": 0.6, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": false, "num_ceps": 3, "cepstral_lifter": 73.9427, "vtln_high": 2044, "vtln_low": 1481, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 2.5228, "energy_floor": 3.1056, "frame_length": 1.125, "frame_shift": 1.1875, "high_freq": 5422, "htk_compat": false, "low_freq": 2825, "num_mel_bins": 7, "preemphasis_coefficient": 0.88, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": false, "num_ceps": 7, "cepstral_lifter": 4.6719, "vtln_high": 5337, "vtln_low": 5243, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 2.5577, "energy_floor": 0.7393, "frame_length": 0.8125, "frame_shift": 0.5, "high_freq": 5291, "htk_compat": true, "low_freq": 1445, "num_mel_bins": 5, "preemphasis_coefficient": 0.01, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 5.8944, "vtln_high": 4338, "vtln_low": 4330, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 2.5854, "energy_floor": 3.2219, "frame_length": 0.875, "frame_shift": 0.4375, "high_freq": 6924, "htk_compat": false, "low_freq": 4024, "num_mel_bins": 4, "preemphasis_coefficient": 1.0, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 0.0578, "vtln_high": 5707, "vtln_low": 5025, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 2.6674, "energy_floor": 2.777, "frame_length": 1.0625, "frame_shift": 0.3125, "high_freq": 3129, "htk_compat": true, "low_freq": 1706, "num_mel_bins": 4, "preemphasis_coefficient": 0.91, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 50.9241, "vtln_high": 2593, "vtln_low": 2198, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 2.6816, "energy_floor": 4.0548, "frame_length": 1.1875, "frame_shift": 0.625, "high_freq": 3182, "htk_compat": false, "low_freq": 157, "num_mel_bins": 6, "preemphasis_coefficient": 0.04, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "num_ceps": 5, "cepstral_lifter": 31.3652, "vtln_high": 1203, "vtln_low": 1174, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 2.7879, "energy_floor": 3.3482, "frame_length": 0.6875, "frame_shift": 0.375, "high_freq": 4262, "htk_compat": true, "low_freq": 150, "num_mel_bins": 4, "preemphasis_coefficient": 0.68, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 92.794, "vtln_high": 3276, "vtln_low": 1685, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 2.8683, "energy_floor": 3.8162, "frame_length": 1.125, "frame_shift": 0.375, "high_freq": 6620, "htk_compat": false, "low_freq": 3389, "num_mel_bins": 7, "preemphasis_coefficient": 0.83, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "num_ceps": 5, "cepstral_lifter": 82.2365, "vtln_high": 5365, "vtln_low": 4579, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 2.869, "energy_floor": 3.2618, "frame_length": 1.1875, "frame_shift": 0.9375, "high_freq": 5646, "htk_compat": true, "low_freq": 491, "num_mel_bins": 8, "preemphasis_coefficient": 0.89, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 59.9812, "vtln_high": 5397, "vtln_low": 2639, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 2.9211, "energy_floor": 4.144, "frame_length": 0.75, "frame_shift": 0.375, "high_freq": 7210, "htk_compat": true, "low_freq": 3666, "num_mel_bins": 4, "preemphasis_coefficient": 0.93, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "num_ceps": 4, "cepstral_lifter": 94.5907, "vtln_high": 6682, "vtln_low": 4979, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 2.9464, "energy_floor": 0.6798, "frame_length": 1.125, "frame_shift": 0.0625, "high_freq": 4445, "htk_compat": true, "low_freq": 323, "num_mel_bins": 6, "preemphasis_coefficient": 0.46, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "num_ceps": 6, "cepstral_lifter": 7.8133, "vtln_high": 3755, "vtln_low": 1137, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 2.9633, "energy_floor": 1.9565, "frame_length": 0.875, "frame_shift": 0.0625, "high_freq": 6835, "htk_compat": false, "low_freq": 649, "num_mel_bins": 5, "preemphasis_coefficient": 0.77, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 80.8871, "vtln_high": 6691, "vtln_low": 6581, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 2.9697, "energy_floor": 2.0241, "frame_length": 1.125, "frame_shift": 0.6875, "high_freq": 2170, "htk_compat": false, "low_freq": 180, "num_mel_bins": 5, "preemphasis_coefficient": 0.28, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 95.8111, "vtln_high": 1266, "vtln_low": 521, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 3.0358, "energy_floor": 1.7295, "frame_length": 1.1875, "frame_shift": 1.0, "high_freq": 7222, "htk_compat": true, "low_freq": 858, "num_mel_bins": 4, "preemphasis_coefficient": 0.16, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "num_ceps": 4, "cepstral_lifter": 64.7537, "vtln_high": 6220, "vtln_low": 5229, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 3.0421, "energy_floor": 3.3343, "frame_length": 1.0, "frame_shift": 0.9375, "high_freq": 6477, "htk_compat": false, "low_freq": 1402, "num_mel_bins": 5, "preemphasis_coefficient": 0.99, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "num_ceps": 4, "cepstral_lifter": 26.1743, "vtln_high": 6381, "vtln_low": 5017, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 3.0919, "energy_floor": 4.5103, "frame_length": 0.625, "frame_shift": 1.0, "high_freq": 5323, "htk_compat": true, "low_freq": 937, "num_mel_bins": 5, "preemphasis_coefficient": 0.95, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "num_ceps": 5, "cepstral_lifter": 82.2405, "vtln_high": 5130, "vtln_low": 5086, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 3.1463, "energy_floor": 4.5068, "frame_length": 0.6875, "frame_shift": 0.3125, "high_freq": 7587, "htk_compat": true, "low_freq": 3542, "num_mel_bins": 7, "preemphasis_coefficient": 0.78, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "num_ceps": 4, "cepstral_lifter": 28.5808, "vtln_high": 7478, "vtln_low": 7326, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 3.2416, "energy_floor": 1.0604, "frame_length": 0.875, "frame_shift": 0.5, "high_freq": 4730, "htk_compat": false, "low_freq": 968, "num_mel_bins": 4, "preemphasis_coefficient": 0.11, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 60.5751, "vtln_high": 3542, "vtln_low": 1943, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 3.2698, "energy_floor": 3.0361, "frame_length": 1.0625, "frame_shift": 0.75, "high_freq": 4870, "htk_compat": true, "low_freq": 1281, "num_mel_bins": 7, "preemphasis_coefficient": 0.64, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 28.536, "vtln_high": 4401, "vtln_low": 3315, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 3.3078, "energy_floor": 4.9217, "frame_length": 1.0, "frame_shift": 0.3125, "high_freq": 6758, "htk_compat": true, "low_freq": 760, "num_mel_bins": 5, "preemphasis_coefficient": 0.98, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 97.4694, "vtln_high": 6022, "vtln_low": 5650, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 3.3206, "energy_floor": 0.023, "frame_length": 1.0625, "frame_shift": 0.5625, "high_freq": 5744, "htk_compat": true, "low_freq": 3901, "num_mel_bins": 5, "preemphasis_coefficient": 0.94, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 47.6031, "vtln_high": 5741, "vtln_low": 5524, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 3.4022, "energy_floor": 1.2172, "frame_length": 0.875, "frame_shift": 0.375, "high_freq": 7737, "htk_compat": false, "low_freq": 612, "num_mel_bins": 5, "preemphasis_coefficient": 0.35, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 65.1166, "vtln_high": 6852, "vtln_low": 5820, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 3.4339, "energy_floor": 2.6197, "frame_length": 1.125, "frame_shift": 0.1875, "high_freq": 3341, "htk_compat": true, "low_freq": 1275, "num_mel_bins": 7, "preemphasis_coefficient": 0.41, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 76.6062, "vtln_high": 3005, "vtln_low": 1680, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 3.4369, "energy_floor": 3.9198, "frame_length": 0.9375, "frame_shift": 0.125, "high_freq": 6218, "htk_compat": true, "low_freq": 904, "num_mel_bins": 5, "preemphasis_coefficient": 0.47, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "num_ceps": 5, "cepstral_lifter": 92.8036, "vtln_high": 4870, "vtln_low": 1901, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 3.4557, "energy_floor": 1.5553, "frame_length": 0.75, "frame_shift": 0.375, "high_freq": 6642, "htk_compat": true, "low_freq": 1530, "num_mel_bins": 4, "preemphasis_coefficient": 0.72, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 28.8828, "vtln_high": 4490, "vtln_low": 2980, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 3.4753, "energy_floor": 4.7166, "frame_length": 0.75, "frame_shift": 0.3125, "high_freq": 7637, "htk_compat": true, "low_freq": 4992, "num_mel_bins": 4, "preemphasis_coefficient": 0.92, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 2.5456, "vtln_high": 6925, "vtln_low": 5486, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 3.5134, "energy_floor": 2.0285, "frame_length": 0.625, "frame_shift": 0.1875, "high_freq": 5229, "htk_compat": false, "low_freq": 595, "num_mel_bins": 4, "preemphasis_coefficient": 0.65, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "num_ceps": 3, "cepstral_lifter": 30.6069, "vtln_high": 5090, "vtln_low": 3467, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 3.5212, "energy_floor": 3.8251, "frame_length": 0.875, "frame_shift": 0.3125, "high_freq": 4092, "htk_compat": true, "low_freq": 545, "num_mel_bins": 5, "preemphasis_coefficient": 0.09, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 2.9422, "vtln_high": 1634, "vtln_low": 1000, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 3.5261, "energy_floor": 2.0251, "frame_length": 0.875, "frame_shift": 0.625, "high_freq": 7926, "htk_compat": false, "low_freq": 3916, "num_mel_bins": 7, "preemphasis_coefficient": 0.45, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 48.8818, "vtln_high": 7889, "vtln_low": 7527, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 3.539, "energy_floor": 1.6456, "frame_length": 1.125, "frame_shift": 0.1875, "high_freq": 5425, "htk_compat": true, "low_freq": 2326, "num_mel_bins": 7, "preemphasis_coefficient": 0.72, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "num_ceps": 4, "cepstral_lifter": 39.4555, "vtln_high": 4290, "vtln_low": 2715, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 3.5643, "energy_floor": 2.2424, "frame_length": 1.1875, "frame_shift": 0.875, "high_freq": 2140, "htk_compat": true, "low_freq": 59, "num_mel_bins": 4, "preemphasis_coefficient": 0.98, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 36.7118, "vtln_high": 1463, "vtln_low": 1358, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 3.5959, "energy_floor": 4.8866, "frame_length": 1.125, "frame_shift": 1.0625, "high_freq": 5150, "htk_compat": false, "low_freq": 3697, "num_mel_bins": 4, "preemphasis_coefficient": 0.46, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 74.0966, "vtln_high": 4277, "vtln_low": 3777, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 3.7223, "energy_floor": 3.4282, "frame_length": 1.0, "frame_shift": 0.125, "high_freq": 6601, "htk_compat": true, "low_freq": 1923, "num_mel_bins": 6, "preemphasis_coefficient": 0.05, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "num_ceps": 4, "cepstral_lifter": 19.2839, "vtln_high": 6596, "vtln_low": 6594, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 3.7376, "energy_floor": 0.2093, "frame_length": 1.1875, "frame_shift": 0.75, "high_freq": 7830, "htk_compat": true, "low_freq": 4448, "num_mel_bins": 5, "preemphasis_coefficient": 0.27, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "num_ceps": 5, "cepstral_lifter": 5.5865, "vtln_high": 5459, "vtln_low": 5056, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 3.812, "energy_floor": 0.4393, "frame_length": 0.75, "frame_shift": 1.0625, "high_freq": 5917, "htk_compat": false, "low_freq": 1272, "num_mel_bins": 4, "preemphasis_coefficient": 0.97, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": true, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 91.4723, "vtln_high": 3532, "vtln_low": 3056, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 3.8613, "energy_floor": 4.6574, "frame_length": 1.125, "frame_shift": 1.0, "high_freq": 3399, "htk_compat": true, "low_freq": 1576, "num_mel_bins": 5, "preemphasis_coefficient": 0.71, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "num_ceps": 3, "cepstral_lifter": 29.1497, "vtln_high": 2440, "vtln_low": 1852, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 3.9117, "energy_floor": 4.6803, "frame_length": 0.5625, "frame_shift": 0.625, "high_freq": 5009, "htk_compat": false, "low_freq": 2542, "num_mel_bins": 4, "preemphasis_coefficient": 0.25, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": false, "num_ceps": 4, "cepstral_lifter": 65.8362, "vtln_high": 4734, "vtln_low": 3050, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 4.1851, "energy_floor": 3.5211, "frame_length": 1.125, "frame_shift": 0.875, "high_freq": 4768, "htk_compat": false, "low_freq": 562, "num_mel_bins": 4, "preemphasis_coefficient": 0.05, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 36.961, "vtln_high": 1982, "vtln_low": 741, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 4.2197, "energy_floor": 3.7252, "frame_length": 0.9375, "frame_shift": 0.8125, "high_freq": 7453, "htk_compat": true, "low_freq": 1561, "num_mel_bins": 4, "preemphasis_coefficient": 0.06, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 44.78, "vtln_high": 6612, "vtln_low": 4074, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 4.2736, "energy_floor": 4.9552, "frame_length": 0.75, "frame_shift": 1.0, "high_freq": 5145, "htk_compat": false, "low_freq": 1705, "num_mel_bins": 4, "preemphasis_coefficient": 0.33, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "use_energy": false, "num_ceps": 4, "cepstral_lifter": 70.9332, "vtln_high": 4857, "vtln_low": 2223, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 4.3762, "energy_floor": 4.7209, "frame_length": 0.9375, "frame_shift": 0.0625, "high_freq": 5564, "htk_compat": true, "low_freq": 712, "num_mel_bins": 4, "preemphasis_coefficient": 0.74, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 39.2887, "vtln_high": 4353, "vtln_low": 3521, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 4.4229, "energy_floor": 0.4222, "frame_length": 1.0625, "frame_shift": 1.1875, "high_freq": 7822, "htk_compat": true, "low_freq": 4837, "num_mel_bins": 5, "preemphasis_coefficient": 0.04, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "num_ceps": 5, "cepstral_lifter": 36.9181, "vtln_high": 7261, "vtln_low": 5703, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
+{"blackman_coeff": 4.4663, "energy_floor": 3.5767, "frame_length": 1.125, "frame_shift": 1.125, "high_freq": 5844, "htk_compat": false, "low_freq": 799, "num_mel_bins": 7, "preemphasis_coefficient": 0.37, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": false, "num_ceps": 4, "cepstral_lifter": 34.2098, "vtln_high": 4554, "vtln_low": 1148, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 4.53, "energy_floor": 3.1492, "frame_length": 1.0625, "frame_shift": 0.375, "high_freq": 7706, "htk_compat": false, "low_freq": 3813, "num_mel_bins": 6, "preemphasis_coefficient": 0.74, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "num_ceps": 2, "cepstral_lifter": 71.8337, "vtln_high": 7672, "vtln_low": 5265, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 4.5474, "energy_floor": 0.7883, "frame_length": 0.5625, "frame_shift": 1.0, "high_freq": 7283, "htk_compat": false, "low_freq": 2418, "num_mel_bins": 4, "preemphasis_coefficient": 0.68, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": true, "num_ceps": 4, "cepstral_lifter": 70.0635, "vtln_high": 7277, "vtln_low": 7265, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 4.5663, "energy_floor": 1.127, "frame_length": 1.125, "frame_shift": 0.8125, "high_freq": 6069, "htk_compat": true, "low_freq": 167, "num_mel_bins": 8, "preemphasis_coefficient": 0.68, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "use_energy": true, "num_ceps": 6, "cepstral_lifter": 1.624, "vtln_high": 2148, "vtln_low": 461, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 4.5896, "energy_floor": 2.7617, "frame_length": 1.0625, "frame_shift": 0.8125, "high_freq": 3851, "htk_compat": true, "low_freq": 1115, "num_mel_bins": 4, "preemphasis_coefficient": 0.03, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "num_ceps": 4, "cepstral_lifter": 49.7637, "vtln_high": 2897, "vtln_low": 2701, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 4.6128, "energy_floor": 0.1203, "frame_length": 1.1875, "frame_shift": 0.9375, "high_freq": 6901, "htk_compat": false, "low_freq": 3577, "num_mel_bins": 6, "preemphasis_coefficient": 0.25, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "num_ceps": 3, "cepstral_lifter": 70.5509, "vtln_high": 5962, "vtln_low": 4190, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 4.6262, "energy_floor": 4.1656, "frame_length": 1.1875, "frame_shift": 0.8125, "high_freq": 6147, "htk_compat": false, "low_freq": 1684, "num_mel_bins": 6, "preemphasis_coefficient": 0.58, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "use_energy": true, "num_ceps": 5, "cepstral_lifter": 54.2056, "vtln_high": 5259, "vtln_low": 2363, "vtln_warp": 1.0, "window_type": "rectangular", "dither": 0.0}
+{"blackman_coeff": 4.6741, "energy_floor": 4.3867, "frame_length": 1.125, "frame_shift": 1.125, "high_freq": 6273, "htk_compat": false, "low_freq": 2481, "num_mel_bins": 4, "preemphasis_coefficient": 0.15, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "use_energy": false, "num_ceps": 4, "cepstral_lifter": 75.6122, "vtln_high": 3701, "vtln_low": 2992, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 4.6765, "energy_floor": 1.2644, "frame_length": 1.125, "frame_shift": 0.75, "high_freq": 5204, "htk_compat": false, "low_freq": 276, "num_mel_bins": 4, "preemphasis_coefficient": 0.04, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": true, "use_energy": false, "num_ceps": 3, "cepstral_lifter": 96.116, "vtln_high": 5148, "vtln_low": 2541, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 4.7216, "energy_floor": 2.4818, "frame_length": 0.8125, "frame_shift": 0.375, "high_freq": 6723, "htk_compat": true, "low_freq": 2352, "num_mel_bins": 6, "preemphasis_coefficient": 0.14, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": false, "num_ceps": 3, "cepstral_lifter": 32.0303, "vtln_high": 5598, "vtln_low": 2579, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 4.7919, "energy_floor": 2.6435, "frame_length": 0.625, "frame_shift": 0.5, "high_freq": 7971, "htk_compat": false, "low_freq": 1812, "num_mel_bins": 4, "preemphasis_coefficient": 0.65, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": true, "use_energy": false, "num_ceps": 4, "cepstral_lifter": 27.7648, "vtln_high": 7735, "vtln_low": 7419, "vtln_warp": 1.0, "window_type": "povey", "dither": 0.0}
+{"blackman_coeff": 4.814, "energy_floor": 0.468, "frame_length": 1.0625, "frame_shift": 0.6875, "high_freq": 5252, "htk_compat": true, "low_freq": 569, "num_mel_bins": 6, "preemphasis_coefficient": 0.85, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "use_energy": false, "num_ceps": 6, "cepstral_lifter": 56.449, "vtln_high": 4397, "vtln_low": 4332, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}
+{"blackman_coeff": 4.95, "energy_floor": 4.5916, "frame_length": 1.125, "frame_shift": 1.0625, "high_freq": 5044, "htk_compat": true, "low_freq": 617, "num_mel_bins": 8, "preemphasis_coefficient": 0.89, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": true, "use_energy": true, "num_ceps": 8, "cepstral_lifter": 23.3238, "vtln_high": 2732, "vtln_low": 2677, "vtln_warp": 1.0, "window_type": "hanning", "dither": 0.0}
+{"blackman_coeff": 4.9663, "energy_floor": 4.7867, "frame_length": 1.1875, "frame_shift": 0.5, "high_freq": 2424, "htk_compat": false, "low_freq": 350, "num_mel_bins": 4, "preemphasis_coefficient": 0.39, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "use_energy": true, "num_ceps": 2, "cepstral_lifter": 59.4319, "vtln_high": 1202, "vtln_low": 1063, "vtln_warp": 1.0, "window_type": "hamming", "dither": 0.0}

test/torchaudio_unittest/assets/kaldi_test_pitch_args.jsonl

+{"sample_rate": 8000}
+{"sample_rate": 8000, "frames_per_chunk": 200}
+{"sample_rate": 8000, "frames_per_chunk": 200, "simulate_first_pass_online": true}
+{"sample_rate": 16000}
+{"sample_rate": 44100}

test/torchaudio_unittest/assets/kaldi_test_spectrogram_args.jsonl

+{"blackman_coeff": 0.0016, "dither": 0, "energy_floor": 4.668, "frame_length": 0.625, "frame_shift": 0.25, "preemphasis_coefficient": 0.82, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "window_type": "povey"}
+{"blackman_coeff": 0.0121, "dither": 0, "energy_floor": 4.9643, "frame_length": 0.875, "frame_shift": 0.1875, "preemphasis_coefficient": 0.98, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "window_type": "rectangular"}
+{"blackman_coeff": 0.0378, "dither": 0, "energy_floor": 3.777, "frame_length": 0.5, "frame_shift": 0.625, "preemphasis_coefficient": 0.76, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "blackman"}
+{"blackman_coeff": 0.0545, "dither": 0, "energy_floor": 0.0732, "frame_length": 1.0, "frame_shift": 0.75, "preemphasis_coefficient": 0.81, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "hanning"}
+{"blackman_coeff": 0.1005, "dither": 0, "energy_floor": 0.3739, "frame_length": 0.5625, "frame_shift": 0.625, "preemphasis_coefficient": 0.19, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "blackman"}
+{"blackman_coeff": 0.1088, "dither": 0, "energy_floor": 0.6933, "frame_length": 0.5, "frame_shift": 0.75, "preemphasis_coefficient": 0.51, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "window_type": "povey"}
+{"blackman_coeff": 0.1777, "dither": 0, "energy_floor": 3.8992, "frame_length": 1.0, "frame_shift": 0.3125, "preemphasis_coefficient": 0.96, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "window_type": "blackman"}
+{"blackman_coeff": 0.2384, "dither": 0, "energy_floor": 0.308, "frame_length": 0.375, "frame_shift": 0.25, "preemphasis_coefficient": 0.98, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": true, "window_type": "povey"}
+{"blackman_coeff": 0.2669, "dither": 0, "energy_floor": 2.4329, "frame_length": 0.625, "frame_shift": 1.1875, "preemphasis_coefficient": 0.18, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "window_type": "blackman"}
+{"blackman_coeff": 0.334, "dither": 0, "energy_floor": 0.5962, "frame_length": 0.25, "frame_shift": 0.5625, "preemphasis_coefficient": 0.38, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "window_type": "hamming"}
+{"blackman_coeff": 0.4268, "dither": 0, "energy_floor": 2.4431, "frame_length": 0.5625, "frame_shift": 0.0625, "preemphasis_coefficient": 0.95, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "hamming"}
+{"blackman_coeff": 0.4774, "dither": 0, "energy_floor": 0.6982, "frame_length": 1.125, "frame_shift": 1.125, "preemphasis_coefficient": 0.27, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": true, "window_type": "povey"}
+{"blackman_coeff": 0.4992, "dither": 0, "energy_floor": 3.7665, "frame_length": 0.4375, "frame_shift": 1.125, "preemphasis_coefficient": 0.42, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "window_type": "rectangular"}
+{"blackman_coeff": 0.544, "dither": 0, "energy_floor": 1.6641, "frame_length": 0.9375, "frame_shift": 0.875, "preemphasis_coefficient": 0.13, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "rectangular"}
+{"blackman_coeff": 0.5785, "dither": 0, "energy_floor": 2.8162, "frame_length": 1.125, "frame_shift": 1.0625, "preemphasis_coefficient": 0.17, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "window_type": "blackman"}
+{"blackman_coeff": 0.8072, "dither": 0, "energy_floor": 4.0404, "frame_length": 0.5, "frame_shift": 1.1875, "preemphasis_coefficient": 0.74, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": true, "window_type": "hamming"}
+{"blackman_coeff": 0.8418, "dither": 0, "energy_floor": 4.1771, "frame_length": 0.3125, "frame_shift": 0.25, "preemphasis_coefficient": 0.48, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "hanning"}
+{"blackman_coeff": 0.8431, "dither": 0, "energy_floor": 0.0728, "frame_length": 0.75, "frame_shift": 0.8125, "preemphasis_coefficient": 0.1, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "povey"}
+{"blackman_coeff": 0.885, "dither": 0, "energy_floor": 3.9292, "frame_length": 0.375, "frame_shift": 0.75, "preemphasis_coefficient": 0.27, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "window_type": "blackman"}
+{"blackman_coeff": 0.9625, "dither": 0, "energy_floor": 2.5481, "frame_length": 0.6875, "frame_shift": 1.0, "preemphasis_coefficient": 0.06, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "blackman"}
+{"blackman_coeff": 0.9826, "dither": 0, "energy_floor": 0.7377, "frame_length": 0.375, "frame_shift": 0.6875, "preemphasis_coefficient": 0.7, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "window_type": "rectangular"}
+{"blackman_coeff": 0.9854, "dither": 0, "energy_floor": 3.8819, "frame_length": 0.25, "frame_shift": 1.0, "preemphasis_coefficient": 0.54, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": true, "window_type": "povey"}
+{"blackman_coeff": 1.0303, "dither": 0, "energy_floor": 4.4583, "frame_length": 0.375, "frame_shift": 0.875, "preemphasis_coefficient": 0.39, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "window_type": "blackman"}
+{"blackman_coeff": 1.0743, "dither": 0, "energy_floor": 0.4642, "frame_length": 1.125, "frame_shift": 0.625, "preemphasis_coefficient": 0.39, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "hanning"}
+{"blackman_coeff": 1.0788, "dither": 0, "energy_floor": 1.442, "frame_length": 0.1875, "frame_shift": 0.3125, "preemphasis_coefficient": 0.53, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "hanning"}
+{"blackman_coeff": 1.0816, "dither": 0, "energy_floor": 0.205, "frame_length": 0.1875, "frame_shift": 0.6875, "preemphasis_coefficient": 0.02, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "hamming"}
+{"blackman_coeff": 1.1385, "dither": 0, "energy_floor": 4.738, "frame_length": 0.625, "frame_shift": 0.3125, "preemphasis_coefficient": 0.23, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "window_type": "hanning"}
+{"blackman_coeff": 1.3142, "dither": 0, "energy_floor": 4.8914, "frame_length": 0.875, "frame_shift": 0.1875, "preemphasis_coefficient": 0.34, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "window_type": "blackman"}
+{"blackman_coeff": 1.3189, "dither": 0, "energy_floor": 3.683, "frame_length": 1.125, "frame_shift": 1.125, "preemphasis_coefficient": 0.88, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": true, "window_type": "hamming"}
+{"blackman_coeff": 1.3235, "dither": 0, "energy_floor": 3.8538, "frame_length": 0.25, "frame_shift": 1.0625, "preemphasis_coefficient": 0.07, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "window_type": "blackman"}
+{"blackman_coeff": 1.3389, "dither": 0, "energy_floor": 1.6152, "frame_length": 0.375, "frame_shift": 0.5, "preemphasis_coefficient": 0.21, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "window_type": "blackman"}
+{"blackman_coeff": 1.3887, "dither": 0, "energy_floor": 3.3198, "frame_length": 0.375, "frame_shift": 0.125, "preemphasis_coefficient": 0.14, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "hanning"}
+{"blackman_coeff": 1.4127, "dither": 0, "energy_floor": 2.6264, "frame_length": 0.875, "frame_shift": 0.375, "preemphasis_coefficient": 0.69, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "povey"}
+{"blackman_coeff": 1.5178, "dither": 0, "energy_floor": 2.8631, "frame_length": 1.0, "frame_shift": 0.8125, "preemphasis_coefficient": 0.95, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "blackman"}
+{"blackman_coeff": 1.5403, "dither": 0, "energy_floor": 0.0133, "frame_length": 1.1875, "frame_shift": 0.25, "preemphasis_coefficient": 0.59, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "blackman"}
+{"blackman_coeff": 1.5754, "dither": 0, "energy_floor": 0.954, "frame_length": 1.0, "frame_shift": 0.9375, "preemphasis_coefficient": 0.2, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "rectangular"}
+{"blackman_coeff": 1.5959, "dither": 0, "energy_floor": 0.9033, "frame_length": 0.75, "frame_shift": 1.0, "preemphasis_coefficient": 0.14, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "hanning"}
+{"blackman_coeff": 1.6923, "dither": 0, "energy_floor": 3.5626, "frame_length": 0.6875, "frame_shift": 1.0625, "preemphasis_coefficient": 0.27, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "rectangular"}
+{"blackman_coeff": 1.6972, "dither": 0, "energy_floor": 1.0863, "frame_length": 1.1875, "frame_shift": 0.875, "preemphasis_coefficient": 0.86, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "rectangular"}
+{"blackman_coeff": 1.744, "dither": 0, "energy_floor": 0.5308, "frame_length": 0.5, "frame_shift": 0.125, "preemphasis_coefficient": 0.33, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "window_type": "hamming"}
+{"blackman_coeff": 1.7642, "dither": 0, "energy_floor": 0.4833, "frame_length": 0.25, "frame_shift": 0.8125, "preemphasis_coefficient": 0.94, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "window_type": "blackman"}
+{"blackman_coeff": 1.8072, "dither": 0, "energy_floor": 0.8085, "frame_length": 0.5, "frame_shift": 0.25, "preemphasis_coefficient": 0.96, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "hanning"}
+{"blackman_coeff": 1.8836, "dither": 0, "energy_floor": 4.5145, "frame_length": 0.875, "frame_shift": 1.0625, "preemphasis_coefficient": 0.4, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "hanning"}
+{"blackman_coeff": 1.8946, "dither": 0, "energy_floor": 4.1442, "frame_length": 0.3125, "frame_shift": 0.875, "preemphasis_coefficient": 0.73, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "rectangular"}
+{"blackman_coeff": 1.8988, "dither": 0, "energy_floor": 3.0931, "frame_length": 1.0625, "frame_shift": 0.3125, "preemphasis_coefficient": 0.35, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "hanning"}
+{"blackman_coeff": 1.9501, "dither": 0, "energy_floor": 4.3519, "frame_length": 0.4375, "frame_shift": 0.25, "preemphasis_coefficient": 0.61, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "window_type": "hanning"}
+{"blackman_coeff": 2.0137, "dither": 0, "energy_floor": 3.1007, "frame_length": 0.625, "frame_shift": 1.0625, "preemphasis_coefficient": 0.67, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "rectangular"}
+{"blackman_coeff": 2.0175, "dither": 0, "energy_floor": 2.9099, "frame_length": 1.0, "frame_shift": 0.5625, "preemphasis_coefficient": 0.28, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "blackman"}
+{"blackman_coeff": 2.1114, "dither": 0, "energy_floor": 4.5618, "frame_length": 0.25, "frame_shift": 0.875, "preemphasis_coefficient": 0.61, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "window_type": "povey"}
+{"blackman_coeff": 2.1472, "dither": 0, "energy_floor": 0.2, "frame_length": 1.125, "frame_shift": 0.875, "preemphasis_coefficient": 0.58, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": true, "window_type": "hamming"}
+{"blackman_coeff": 2.1947, "dither": 0, "energy_floor": 1.8065, "frame_length": 0.875, "frame_shift": 0.75, "preemphasis_coefficient": 0.45, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "window_type": "povey"}
+{"blackman_coeff": 2.2457, "dither": 0, "energy_floor": 1.704, "frame_length": 0.75, "frame_shift": 0.5625, "preemphasis_coefficient": 0.98, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": true, "window_type": "hamming"}
+{"blackman_coeff": 2.2893, "dither": 0, "energy_floor": 1.0286, "frame_length": 0.25, "frame_shift": 0.5, "preemphasis_coefficient": 0.8, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "hanning"}
+{"blackman_coeff": 2.3371, "dither": 0, "energy_floor": 4.4192, "frame_length": 0.8125, "frame_shift": 0.625, "preemphasis_coefficient": 0.3, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "rectangular"}
+{"blackman_coeff": 2.3831, "dither": 0, "energy_floor": 4.8325, "frame_length": 0.25, "frame_shift": 1.125, "preemphasis_coefficient": 0.34, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "window_type": "povey"}
+{"blackman_coeff": 2.423, "dither": 0, "energy_floor": 0.6363, "frame_length": 0.875, "frame_shift": 0.3125, "preemphasis_coefficient": 0.77, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "hanning"}
+{"blackman_coeff": 2.4378, "dither": 0, "energy_floor": 1.4617, "frame_length": 0.9375, "frame_shift": 0.375, "preemphasis_coefficient": 0.53, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "rectangular"}
+{"blackman_coeff": 2.4454, "dither": 0, "energy_floor": 1.936, "frame_length": 1.0, "frame_shift": 0.9375, "preemphasis_coefficient": 0.66, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "window_type": "rectangular"}
+{"blackman_coeff": 2.448, "dither": 0, "energy_floor": 3.8782, "frame_length": 0.5625, "frame_shift": 1.125, "preemphasis_coefficient": 0.1, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "window_type": "rectangular"}
+{"blackman_coeff": 2.5164, "dither": 0, "energy_floor": 2.7455, "frame_length": 0.875, "frame_shift": 0.9375, "preemphasis_coefficient": 0.55, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "window_type": "hanning"}
+{"blackman_coeff": 2.5316, "dither": 0, "energy_floor": 2.3286, "frame_length": 0.75, "frame_shift": 0.75, "preemphasis_coefficient": 0.61, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": true, "window_type": "rectangular"}
+{"blackman_coeff": 2.5487, "dither": 0, "energy_floor": 3.8457, "frame_length": 1.1875, "frame_shift": 0.9375, "preemphasis_coefficient": 0.63, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "hanning"}
+{"blackman_coeff": 2.6121, "dither": 0, "energy_floor": 4.3165, "frame_length": 0.6875, "frame_shift": 1.1875, "preemphasis_coefficient": 0.19, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "rectangular"}
+{"blackman_coeff": 2.6988, "dither": 0, "energy_floor": 2.3417, "frame_length": 1.0, "frame_shift": 0.6875, "preemphasis_coefficient": 0.38, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "rectangular"}
+{"blackman_coeff": 2.7457, "dither": 0, "energy_floor": 1.3662, "frame_length": 0.25, "frame_shift": 0.875, "preemphasis_coefficient": 0.74, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": true, "window_type": "blackman"}
+{"blackman_coeff": 2.8577, "dither": 0, "energy_floor": 4.1431, "frame_length": 0.375, "frame_shift": 1.0, "preemphasis_coefficient": 1.0, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "hamming"}
+{"blackman_coeff": 2.8693, "dither": 0, "energy_floor": 4.3801, "frame_length": 0.75, "frame_shift": 1.0, "preemphasis_coefficient": 0.95, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "rectangular"}
+{"blackman_coeff": 2.8888, "dither": 0, "energy_floor": 0.4078, "frame_length": 0.3125, "frame_shift": 0.625, "preemphasis_coefficient": 0.25, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "hanning"}
+{"blackman_coeff": 2.9074, "dither": 0, "energy_floor": 1.6849, "frame_length": 1.125, "frame_shift": 0.625, "preemphasis_coefficient": 0.79, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "blackman"}
+{"blackman_coeff": 2.9303, "dither": 0, "energy_floor": 3.5172, "frame_length": 0.5, "frame_shift": 0.5, "preemphasis_coefficient": 0.04, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "rectangular"}
+{"blackman_coeff": 3.07, "dither": 0, "energy_floor": 3.5254, "frame_length": 0.75, "frame_shift": 0.875, "preemphasis_coefficient": 0.96, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "window_type": "povey"}
+{"blackman_coeff": 3.1297, "dither": 0, "energy_floor": 0.3513, "frame_length": 0.4375, "frame_shift": 0.3125, "preemphasis_coefficient": 0.2, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "povey"}
+{"blackman_coeff": 3.2523, "dither": 0, "energy_floor": 3.5376, "frame_length": 0.3125, "frame_shift": 0.25, "preemphasis_coefficient": 0.46, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "rectangular"}
+{"blackman_coeff": 3.3896, "dither": 0, "energy_floor": 0.4666, "frame_length": 1.125, "frame_shift": 0.25, "preemphasis_coefficient": 0.05, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "window_type": "rectangular"}
+{"blackman_coeff": 3.537, "dither": 0, "energy_floor": 1.7032, "frame_length": 0.375, "frame_shift": 0.875, "preemphasis_coefficient": 0.17, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "window_type": "hamming"}
+{"blackman_coeff": 3.5378, "dither": 0, "energy_floor": 3.6594, "frame_length": 0.25, "frame_shift": 0.625, "preemphasis_coefficient": 0.54, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "rectangular"}
+{"blackman_coeff": 3.5847, "dither": 0, "energy_floor": 3.6357, "frame_length": 1.0, "frame_shift": 0.3125, "preemphasis_coefficient": 0.79, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "window_type": "povey"}
+{"blackman_coeff": 3.6057, "dither": 0, "energy_floor": 1.6902, "frame_length": 1.0625, "frame_shift": 0.6875, "preemphasis_coefficient": 0.65, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "blackman"}
+{"blackman_coeff": 3.6498, "dither": 0, "energy_floor": 0.2005, "frame_length": 0.9375, "frame_shift": 1.125, "preemphasis_coefficient": 0.37, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "window_type": "rectangular"}
+{"blackman_coeff": 3.6648, "dither": 0, "energy_floor": 4.6742, "frame_length": 0.625, "frame_shift": 1.1875, "preemphasis_coefficient": 0.88, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": true, "window_type": "blackman"}
+{"blackman_coeff": 3.6701, "dither": 0, "energy_floor": 3.7451, "frame_length": 0.8125, "frame_shift": 0.25, "preemphasis_coefficient": 0.19, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "blackman"}
+{"blackman_coeff": 3.7232, "dither": 0, "energy_floor": 0.4912, "frame_length": 0.375, "frame_shift": 0.875, "preemphasis_coefficient": 0.34, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": true, "window_type": "rectangular"}
+{"blackman_coeff": 3.7605, "dither": 0, "energy_floor": 1.6813, "frame_length": 0.25, "frame_shift": 0.5625, "preemphasis_coefficient": 0.27, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "rectangular"}
+{"blackman_coeff": 3.7759, "dither": 0, "energy_floor": 1.7002, "frame_length": 1.0625, "frame_shift": 0.6875, "preemphasis_coefficient": 0.42, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "hamming"}
+{"blackman_coeff": 3.7921, "dither": 0, "energy_floor": 3.4087, "frame_length": 0.25, "frame_shift": 1.0, "preemphasis_coefficient": 0.54, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "blackman"}
+{"blackman_coeff": 3.7954, "dither": 0, "energy_floor": 3.5651, "frame_length": 0.5, "frame_shift": 0.8125, "preemphasis_coefficient": 0.06, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "window_type": "blackman"}
+{"blackman_coeff": 3.799, "dither": 0, "energy_floor": 3.0026, "frame_length": 0.625, "frame_shift": 1.0, "preemphasis_coefficient": 0.82, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": true, "window_type": "hamming"}
+{"blackman_coeff": 3.8659, "dither": 0, "energy_floor": 1.7487, "frame_length": 1.1875, "frame_shift": 0.375, "preemphasis_coefficient": 1.0, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "hanning"}
+{"blackman_coeff": 3.951, "dither": 0, "energy_floor": 0.3903, "frame_length": 1.125, "frame_shift": 1.0, "preemphasis_coefficient": 0.41, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": true, "window_type": "rectangular"}
+{"blackman_coeff": 4.0045, "dither": 0, "energy_floor": 3.061, "frame_length": 0.625, "frame_shift": 1.0625, "preemphasis_coefficient": 0.74, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "window_type": "hanning"}
+{"blackman_coeff": 4.0187, "dither": 0, "energy_floor": 4.8148, "frame_length": 0.375, "frame_shift": 0.6875, "preemphasis_coefficient": 0.68, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "window_type": "hanning"}
+{"blackman_coeff": 4.032, "dither": 0, "energy_floor": 2.2019, "frame_length": 1.125, "frame_shift": 0.25, "preemphasis_coefficient": 0.78, "raw_energy": true, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "rectangular"}
+{"blackman_coeff": 4.0627, "dither": 0, "energy_floor": 4.1729, "frame_length": 0.625, "frame_shift": 1.125, "preemphasis_coefficient": 0.89, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "window_type": "povey"}
+{"blackman_coeff": 4.0736, "dither": 0, "energy_floor": 0.9155, "frame_length": 1.0625, "frame_shift": 0.5625, "preemphasis_coefficient": 0.82, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "hamming"}
+{"blackman_coeff": 4.1131, "dither": 0, "energy_floor": 3.9204, "frame_length": 0.5, "frame_shift": 0.125, "preemphasis_coefficient": 0.39, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "hanning"}
+{"blackman_coeff": 4.1816, "dither": 0, "energy_floor": 1.665, "frame_length": 0.8125, "frame_shift": 0.375, "preemphasis_coefficient": 0.37, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "rectangular"}
+{"blackman_coeff": 4.1897, "dither": 0, "energy_floor": 1.2668, "frame_length": 0.1875, "frame_shift": 0.625, "preemphasis_coefficient": 0.74, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "hamming"}
+{"blackman_coeff": 4.2217, "dither": 0, "energy_floor": 3.6775, "frame_length": 0.3125, "frame_shift": 0.125, "preemphasis_coefficient": 0.01, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "hamming"}
+{"blackman_coeff": 4.2785, "dither": 0, "energy_floor": 0.7201, "frame_length": 0.8125, "frame_shift": 0.8125, "preemphasis_coefficient": 0.3, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "window_type": "hanning"}
+{"blackman_coeff": 4.3304, "dither": 0, "energy_floor": 1.0538, "frame_length": 0.875, "frame_shift": 1.125, "preemphasis_coefficient": 0.92, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": false, "window_type": "povey"}
+{"blackman_coeff": 4.3942, "dither": 0, "energy_floor": 3.9813, "frame_length": 0.75, "frame_shift": 0.6875, "preemphasis_coefficient": 0.27, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "blackman"}
+{"blackman_coeff": 4.4432, "dither": 0, "energy_floor": 2.0441, "frame_length": 0.5, "frame_shift": 0.6875, "preemphasis_coefficient": 0.77, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "hanning"}
+{"blackman_coeff": 4.4459, "dither": 0, "energy_floor": 0.5135, "frame_length": 0.25, "frame_shift": 0.1875, "preemphasis_coefficient": 0.29, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "window_type": "hanning"}
+{"blackman_coeff": 4.5486, "dither": 0, "energy_floor": 1.3248, "frame_length": 0.1875, "frame_shift": 1.125, "preemphasis_coefficient": 0.91, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": false, "subtract_mean": true, "window_type": "hanning"}
+{"blackman_coeff": 4.5535, "dither": 0, "energy_floor": 2.1772, "frame_length": 0.4375, "frame_shift": 0.875, "preemphasis_coefficient": 0.21, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "hanning"}
+{"blackman_coeff": 4.5835, "dither": 0, "energy_floor": 0.3781, "frame_length": 0.875, "frame_shift": 0.875, "preemphasis_coefficient": 0.04, "raw_energy": true, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": true, "window_type": "hamming"}
+{"blackman_coeff": 4.6297, "dither": 0, "energy_floor": 2.49, "frame_length": 0.5, "frame_shift": 0.25, "preemphasis_coefficient": 0.03, "raw_energy": false, "remove_dc_offset": false, "round_to_power_of_two": true, "snip_edges": true, "subtract_mean": false, "window_type": "rectangular"}
+{"blackman_coeff": 4.6749, "dither": 0, "energy_floor": 4.8853, "frame_length": 0.25, "frame_shift": 0.25, "preemphasis_coefficient": 0.48, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": false, "subtract_mean": false, "window_type": "povey"}
+{"blackman_coeff": 4.6971, "dither": 0, "energy_floor": 1.3632, "frame_length": 0.875, "frame_shift": 0.9375, "preemphasis_coefficient": 0.44, "raw_energy": false, "remove_dc_offset": true, "round_to_power_of_two": false, "snip_edges": true, "subtract_mean": false, "window_type": "blackman"}