visualize_audio_tsne.py 文件源码

def extract_features(filename):
    y, sr = librosa.load(filename)
    y = shape_sound_clip(y)
    S = librosa.feature.melspectrogram(y, sr=sr, n_mels=128)
    log_S = librosa.logamplitude(S, ref_power=np.max)
    mfcc = librosa.feature.mfcc(S=log_S, n_mfcc=13)
    return mfcc.flatten()