pyaudio_driver.py 文件源码

def play(self, signal, range = (), sr = 44100, stop_func = None):
        self.current_stream_id+=1
        stream = PyAudioDriver.PlaybackStream(
            signal,range,
            self.wrap_stop_func(self.current_stream_id, stop_func)
        )

        pa_stream = self.pyaudio.open(
            format = pa.paFloat32,
            channels=signal.shape[1],
            rate=sr,
            output=True,
            stream_callback=stream.callback)

        self.streams[self.current_stream_id] = pa_stream
        return self.current_stream_id