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import pyaudio
import wave
# 创建录音类
class Audio():
    def __init__(self,chunk=1024,channels=2,rate=44100):
# 设置一些录音是参数 
        self.chunk = chunk
        self.channels = channels #声道数：单声道、双声道
        self.rate = rate #取样频率：一秒钟对声音采样的次数
        self.running = True
        self.frame = []
        self.format = pyaudio.paInt16
        self.seconds = 5

    def run(self):#开始录音函数
        self.running = True
        self.frame = []
        pa = pyaudio.PyAudio()

        #查找录音设备
        device = self.findDevice(pa)
        stream = pa.open(
            format = self.format,
            channels = self.channels,
            rate = self.rate,
            input = True,
            frames_per_buffer = self.chunk
        )
        for i in range(0,int(self.rate/self.chunk*self.seconds)):
            data = stream.read(self.chunk)
            self.frame.append(data)
        stream.stop_stream()
        stream.close()
        pa.terminate()
        return

    def stop(self):
        self.running = False

    def save(self,fileName):
        pa = pyaudio.PyAudio()
        f = wave.open(fileName,'wb')
        f.setnchannels(self.channels)
        f.setframerate(self.rate)
        f.setsampwidth(pa.get_sample_size(self.format))
        f.writeframes(b''.join(self.frame))
        f.close()
        pa.terminate()

if __name__ == '__main__':
    print("开始录音：")
    audio = Audio()
    audio.run()
    status = True

    while status:
        temp = input("按下x结束")
        if temp == 'x':
            running = False
            audio.stop()
            audio.save("test.wav")