8k.py 文件源码

def recoder(self):
        pa = PyAudio() 
        stream = pa.open(format=paInt16, channels=1, rate=self.SAMPLING_RATE, input=True, 
            frames_per_buffer=self.NUM_SAMPLES) 
        save_count = 0 
        save_buffer = [] 
        time_count = self.TIME_COUNT

        while True:
            time_count -= 1
            # print time_count
            # ??NUM_SAMPLES???
            string_audio_data = stream.read(self.NUM_SAMPLES) 
            # ???????????
            audio_data = np.fromstring(string_audio_data, dtype=np.short)
            # ????LEVEL??????
            large_sample_count = np.sum( audio_data > self.LEVEL )
            print(np.max(audio_data))
            # ??????COUNT_NUM??????SAVE_LENGTH??
            if large_sample_count > self.COUNT_NUM:
                save_count = self.SAVE_LENGTH 
            else: 
                save_count -= 1

            if save_count < 0:
                save_count = 0 

            if save_count > 0 : 
            # ??????????save_buffer?
                #print  save_count > 0 and time_count >0
                save_buffer.append( string_audio_data ) 
            else: 
            #print save_buffer
            # ?save_buffer??????WAV???WAV????????????
                #print "debug"
                if len(save_buffer) > 0 : 
                    self.Voice_String = save_buffer
                    save_buffer = [] 
                    print("Recode a piece of  voice successfully!")
                    return True
            if time_count==0: 
                if len(save_buffer)>0:
                    self.Voice_String = save_buffer
                    save_buffer = [] 
                    print("Recode a piece of  voice successfully!")
                    return True
                else:
                    return False