@ -58,7 +58,7 @@ def extract_features(files: str, **kwargs):
feature_extractor = LogMelSpectrogram(sr, **kwargs)
feat = feature_extractor(paddle.to_tensor(waveforms[i]))
feat = paddle.transpose(feat, perm=[1, 0])
feat = paddle.transpose(feat, perm=[1, 0]).unsqueeze(0)
feats.append(feat)
return np.stack(feats, axis=0)