INNER CODE UNIT · Python

mel

mdeff/fma · features.py:101

        mel = librosa.feature.melspectrogram(sr=sr, S=stft**2)
        del stft
        f = librosa.feature.mfcc(S=librosa.power_to_db(mel), n_mfcc=20)
        feature_stats('mfcc', f)

    except Exception as e:
        print('{}: {}'.format(tid, repr(e)))

    return features


def main():
    tracks = utils.load('tracks.csv')
    features = pd.DataFrame(index=tracks.index,
                            columns=columns(), dtype=np.float32)

    # More than usable CPUs to be CPU bound, not I/O bound. Beware memory.
    nb_workers = int(1.5 * len(os.sched_getaffinity(0)))

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