Gradcheck failure for torchaudio.functional.phase_vocoder
#55557
Labels
module: autograd
Related to torch.autograd, and the autograd engine in general
module: correctness (silent)
issue that returns an incorrect result silently
triaged
This issue has been looked at a team member, and triaged and prioritized into an appropriate module
馃悰 Bug
In pytorch/audio#1420, we are adding autograd check to
torchaudio.functional.phase_vocoder
and we noticed that it fails autograd test whenrate=0.7
, while it works forrate=0.8 ~ 1.3
Note that
phase_vocoder
shrinks spectrogram along time axis, so this might be a legit result.To Reproduce
The following is the minimized version of
torchaudio.functional.phase_vocoder
.Expected behavior
It should pass autograd test
Environment
cc @ezyang @albanD @zou3519 @gqchen @pearu @nikitaved @soulitzer
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