audio.py 文件源码

def _next_chunk(self):
        frames = self._wave_fp.readframes(self._nframes)
        if self._n_channels == 2:
            frames = audioop.tomono(frames, self._sampwidth, .5, .5)
        if len(frames) == 0:
            raise StopAsyncIteration('No more frames in wav')
        chunk = AudioChunk(0, audio=frames, width=self._sampwidth,
                           freq=self._samprate)
        return chunk