sndcard.py 文件源码

def open(self):
        """Open a PyAudio instance. This needs to be called before play(),
        play_rec() or rec() is called. This can be done in two ways:

            snd = PA()
            snd.open()
            try:
                snd.play(x)
            finally:
                snd.close()

        or use the 'with' statement:

            with PA() as snd:
                snd.play(x)

        """
        self._logger.debug("creating pyaudio instance")
        self.pa = pyaudio.PyAudio()