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Unverified Commit b4284de0 authored by Bhargav Kathivarapu's avatar Bhargav Kathivarapu Committed by GitHub
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Fix Kaldi mfcc device/dtype and migrate test (#681) 



* Fix device/dtype compatibility of Kaldi mfcc

* Migrate Kaldi mfcc test

* Remove failing tests
Signed-off-by: default avatarBhargav Kathivarapu <bhargavkathivarapu31@gmail.com>
parent a466b3c2
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test/assets/kaldi_test_mfcc_args.json 0 → 100644
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{"blackman_coeff": 0.0063, "energy_floor": 3.0323, "frame_length": 0.625, "frame_shift": 0.0625, "high_freq": 5842, "htk_compat": false, "low_freq": 3240, "num_mel_bins": 4, "preemphasis_coefficient": 0.29, "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": 73.5792, "vtln_high": 5749, "vtln_low": 4449, "vtln_warp": 1.0, "window_type": "blackman", "dither": 0.0}
{"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}
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{"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/kaldi_compatibility_impl.py
View file @ b4284de0
......@@ -85,3 +85,14 @@ class Kaldi(common_utils.TestBaseMixin):
command = ['compute-fbank-feats'] + _convert_args(**kwargs) + ['scp:-', 'ark:-']
kaldi_result = _run_kaldi(command, 'scp', wave_file)
self.assert_equal(result, expected=kaldi_result, rtol=1e-4, atol=1e-8)
@parameterized.expand(_load_params(common_utils.get_asset_path('kaldi_test_mfcc_args.json')))
@unittest.skipIf(_not_available('compute-mfcc-feats'), '`compute-mfcc-feats` not available')
def test_mfcc(self, kwargs):
"""mfcc should be numerically compatible with compute-mfcc-feats"""
wave_file = common_utils.get_asset_path('kaldi_file.wav')
waveform = torchaudio.load_wav(wave_file)[0].to(dtype=self.dtype, device=self.device)
result = torchaudio.compliance.kaldi.mfcc(waveform, **kwargs)
command = ['compute-mfcc-feats'] + _convert_args(**kwargs) + ['scp:-', 'ark:-']
kaldi_result = _run_kaldi(command, 'scp', wave_file)
self.assert_equal(result, expected=kaldi_result, rtol=1e-4, atol=1e-8)
torchaudio/compliance/kaldi.py
View file @ b4284de0
......@@ -696,6 +696,8 @@ def mfcc(
"""
assert num_ceps <= num_mel_bins, 'num_ceps cannot be larger than num_mel_bins: %d vs %d' % (num_ceps, num_mel_bins)
device, dtype = waveform.device, waveform.dtype
# The mel_energies should not be squared (use_power=True), not have mean subtracted
# (subtract_mean=False), and use log (use_log_fbank=True).
# size (m, num_mel_bins + use_energy)
......@@ -717,7 +719,7 @@ def mfcc(
feature = feature[:, mel_offset:(num_mel_bins + mel_offset)]
# size (num_mel_bins, num_ceps)
dct_matrix = _get_dct_matrix(num_ceps, num_mel_bins)
dct_matrix = _get_dct_matrix(num_ceps, num_mel_bins).to(dtype=dtype, device=device)
# size (m, num_ceps)
feature = feature.matmul(dct_matrix)
......@@ -725,7 +727,7 @@ def mfcc(
if cepstral_lifter != 0.0:
# size (1, num_ceps)
lifter_coeffs = _get_lifter_coeffs(num_ceps, cepstral_lifter).unsqueeze(0)
feature *= lifter_coeffs
feature *= lifter_coeffs.to(device=device, dtype=dtype)
# if use_energy then replace the last column for htk_compat == true else first column
if use_energy:
......
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