audio.py 文件源码

def __init__(self, filename):
        """
        Creates the high quality recorder
        :param filename: Filename to record into
        """
        self._config = HQCConfig.get_instance('conn.conf')
        audio_config = self._config.get_section('HQRecordingSettings')

        self._p = pyaudio.PyAudio()
        self._stream = self._p.open(format=self._p.get_format_from_width(int(audio_config['width'])),
                                    channels=int(audio_config['channels']),
                                    rate=int(audio_config['rate']),
                                    input=True,
                                    stream_callback=self._callback)

        self._output = wave.open(filename, 'wb')
        self._output.setnchannels(int(audio_config['channels']))
        self._output.setsampwidth(int(audio_config['width']))
        self._output.setframerate(int(audio_config['rate']))

        self._audio_writer = Thread(target=self._write_queue_to_file)
        self._audio_writer.daemon = True
        self._audio_writer.start()