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Add autograd test for T.MelScale #1467

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Merged
merged 4 commits into from
Apr 23, 2021
Merged

Add autograd test for T.MelScale #1467

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ea22a41
melscale unit test
krishnakalyan3 Apr 21, 2021
609d74f
fix dims
krishnakalyan3 Apr 22, 2021
afaa632
add missing params
krishnakalyan3 Apr 22, 2021
a5aa15a
update var for readbility
krishnakalyan3 Apr 23, 2021
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10 changes: 10 additions & 0 deletions test/torchaudio_unittest/transforms/autograd_test_impl.py
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Original file line number Diff line number Diff line change
Expand Up @@ -137,6 +137,16 @@ def test_amplitude_to_db(self):
waveform = get_whitenoise(sample_rate=sample_rate, duration=0.05, n_channels=2)
self.assert_grad(transform, [waveform])

def test_melscale(self):
sample_rate = 8000
n_fft = 400
n_mels = n_fft // 2 + 1
transform = T.MelScale(sample_rate=sample_rate, n_mels=n_mels)
spec = get_spectrogram(
get_whitenoise(sample_rate=sample_rate, duration=0.05, n_channels=2),
n_fft=n_fft, power=1)
self.assert_grad(transform, [spec])

@parameterized.expand([(1.5, "amplitude"), (2, "power"), (10, "db")])
def test_vol(self, gain, gain_type):
sample_rate = 8000
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