util.py 文件源码

def standard_specgram(signal):
    "Return specgram matrix, made using the audio-layer config"
    return np.array(specgram(signal, NFFT=audioframe_len, noverlap=audioframe_len-audioframe_stride, window=np.hamming(audioframe_len))[0][specbinlow:specbinlow+specbinnum,:], dtype=float32)