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* workaround for bartlett_window https://github.com/pytorch/pytorch/issues/32358#issuecomment-576909755

* only change dtype.

Signed-off-by: Eli Uriegas <eliuriegas@fb.com>

This reverts commit cdf5c83d.

Python 2.7 was EOL on January 1, 2020

The last torchaudio release to support Python 2.7 was 0.4.0
Signed-off-by: Eli Uriegas <eliuriegas@fb.com>

CUDA_SUFFIX was still being used here when it should've been swapped out
for PYTORCH_VERSION_SUFFIX, which is what's being used for conda below.
Signed-off-by: Eli Uriegas <eliuriegas@fb.com>
(cherry picked from commit 009b115d074ac5fcca2cc34662fe814df63324c1)
Signed-off-by: Eli Uriegas <eliuriegas@fb.com>

* extend batch support

closes #383

* function for batch test.

* set seed.

* adjust tolerance for griffinlim.

* fix power of spectrogram. makes power a float.

closes #389

* commenting out failing test.

* change skip test logic for librosa.
closes #373

* move test for scriptmodule.

* avoiding code duplication.

With the introduction of the `filter_branch` parameter to the `workflows`
function we no longer have a need to have this if block anymore per
@ezyang's assessment.
Signed-off-by: Eli Uriegas <eliuriegas@fb.com>

* [WIP] Add Windows CI

* Remove cu_version

* checkout_merge -> checkout

* Add build script

* Switch backend to soundfile

* Remove soundfile as dependency

* Rename jobs

* Fix lint

closes #387

closes #382

Remove suspect logic.

Closes #304

See rationale writeup: https://github.com/pytorch/vision/pull/1321#issuecomment-531033978

* Declare file encoding to support special characters

* fix missing utf_8_encoder error in Travis tests

* Py 2.7 backwards-compat iterator

* ensure integer argument to torch.nn.functional.pad

* cast match.ceil result as integer

* test with jit.

* test passed after adding annotation, and removing get_default_dtype

* fix conversion error.

* moving test to transform.

* reverting to original test.

* move type.

* math.gcd added in python 3.5.
Co-authored-by: Vincent QB <vincentqb@users.noreply.github.com>

* Griffin-Lim Transformation Implementation

* Griffin-Lim Docs

* Remove f-string from backwards compatibility

* iSTFT is now jit-able.

* Comment changes

* Functional Implementation & now jitable

* flake8

* Doc & GPU Fix

* Librosa comparison test

* test directly griffinlim's output. tighter atol.

* matching signature to docstring.
Co-authored-by: Vincent QB <vincentqb@users.noreply.github.com>

* Fixed GPU tests

* Simplify lfilter functional

* use `torch.clamp` instead of `torch.min(..., torch.max(...))`
* remove unneeded creation of ones tensor for previous method

The current lfilter function uses min and max to essentially do a clamp
function.  I changed the code to use clamp instead.  It is more readable
than the previous version.

FYI, if you want to keep the previous way, you could make a
broadcastable tensor of size 1 instead of creating a tensor the size of
the input.
Signed-off-by: David Pollack <david@da3.net>

* Parallelize waveform windows calculation

I've parallelized the calculation of the waveform windows and also
removed the inefficient calculation within the for-loop.
Signed-off-by: David Pollack <david@da3.net>

* Refactoring and minor readability changes
Signed-off-by: David Pollack <david@da3.net>

* Remove one more creation of a temporary tensor
Signed-off-by: David Pollack <david@da3.net>

* move sox inside function calls.

* add backend switch mechanism.

* import sox at runtime, not import.

* add backend list.

* backend tests.

* creating hidden modules for backend.

* naming backend same as file: soundfile.

* remove docstring in backend file.

* test soundfile info.

* soundfile doesn't support int64.

* adding test for wav file.

* error with incorrect parameter instead of silent ignore.

* adding test across backend. using float32 as done in sox.

* backend guard decorator.

* Fix MelScale test and documentation

* revert change to tests

Skip librosa consistency test. unittest need one-line skip condition.

* Simpler amplitude_to_DB

* flake8

* use binaries just built for smoke test

* to trigger tests on PR

* trigger tests

* different build has different test

* test good, now move to official

* test good, now move to official

* Initial commit for SoX logic in VCTK

* change to train whistle file for tests

* apply probability

* adding smoke test

* adding smoke test

* fix config.yml

* trigger smoke test

* test aws erc credential

* test aws erc credential

* test aws erc credential

* test aws erc credential

* adding ecr cred

* test aws erc credential

* test aws erc credential

* test aws erc credential - different way

* test aws erc credential - different way #2

* test aws erc credential - different way #3

* test aws erc credential - different way #4

* test aws #1

* test aws erc credential, after enabling circleci setting

* fixing conda init

* add verbose output for smoke test

* add docker image build workflow

* add docker image build workflow

* fix aws ecr login

* use images build from circelci

* ready for review

* updated Readme with instructions on nightly install, also updated docker image which can make nightlies installed via pip pass

* nit

* reduce size

* fixing errors in docstring.

* move batch to functional.

* since we no longer use decoration, this fixes #165.

* remove import of _docs.