friday.py 文件源码

def _apiai_stt(self):
        from math import log
        import audioop
        import pyaudio
        import time
        resampler = apiai.Resampler(source_samplerate=settings['RATE'])
        request = self.ai.voice_request()
        vad = apiai.VAD()

        def callback(in_data, frame_count):
            frames, data = resampler.resample(in_data, frame_count)
            if settings.show_decibels:
                decibel = 20 * log(audioop.rms(data, 2) + 1, 10)
                click.echo(decibel)
            state = vad.processFrame(frames)
            request.send(data)
            state_signal = pyaudio.paContinue if state == 1 else pyaudio.paComplete
            return in_data, state_signal

        p = pyaudio.PyAudio()
        stream = p.open(format=pyaudio.paInt32, input=True, output=False, stream_callback=callback,
                        channels=settings['CHANNELS'], rate=settings['RATE'], frames_per_buffer=settings['CHUNK'])
        stream.start_stream()
        click.echo("Speak!")
        while stream.is_active():
            time.sleep(0.1)
        stream.stop_stream()
        stream.close()
        p.terminate()