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align the padding in librosa to what is now done in tf backend

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mmoussallam
2020-07-24 16:32:32 +02:00
parent e7cd9f8aaa
commit 0016e35192
3 changed files with 27 additions and 73 deletions
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18
tests/test_separator.py
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@@ -53,29 +53,13 @@ def test_separator_backends(test_file):
stft_matrix, inverse=True, length=waveform.shape[0])
assert np.allclose(reconstructed, waveform, atol=3e-2)
# # now also test that tensorflow and librosa STFT provide same results
from spleeter.audio.spectrogram import compute_spectrogram_tf
tf_waveform = tf.convert_to_tensor(waveform, tf.float32)
spectrogram_tf = compute_spectrogram_tf(tf_waveform,
separator_tf._params['frame_length'],
separator_tf._params['frame_step'],)
with tf.Session() as sess:
spectrogram_tf_eval = spectrogram_tf.eval()
# check that stfts are equivalent
assert stft_matrix.shape == spectrogram_tf_eval.shape
assert np.allclose(
np.abs(stft_matrix), spectrogram_tf_eval, atol=1e-2)
# compare both separation, it should be close
out_tf = separator_tf._separate_tensorflow(waveform, test_file)
out_lib = separator_lib._separate_librosa(waveform, test_file)
for instrument in out_lib.keys():
# test that both outputs are close everywhere
assert np.allclose(out_tf[instrument], out_lib[instrument], atol=0.025)
# it should be even more similar outside edges zones
assert np.allclose(out_tf[instrument][4096:-4096,:], out_lib[instrument][4096:-4096,:], atol=0.002)
assert np.allclose(out_tf[instrument], out_lib[instrument], atol=1e-5)
@pytest.mark.parametrize('test_file, configuration, backend', TEST_CONFIGURATIONS)