python实现录音功能（可随时停止录音）

本文实例为大家分享了python实现录音功能的具体代码，供大家参考，具体内容如下

# -*- coding: utf-8 -*-
 
import pyaudio
import time
import threading
import wave
 
class recorder():
  def __init__(self, chunk=1024, channels=1, rate=64000):
    self.chunk = chunk
    self.format = pyaudio.paint16
    self.channels = channels
    self.rate = rate
    self._running = true
    self._frames = []
  def start(self):
    threading._start_new_thread(self.__recording, ())
  def __recording(self):
    self._running = true
    self._frames = []
    p = pyaudio.pyaudio()
    stream = p.open(format=self.format,
            channels=self.channels,
            rate=self.rate,
            input=true,
            frames_per_buffer=self.chunk)
    while(self._running):
      data = stream.read(self.chunk)
      self._frames.append(data)
 
    stream.stop_stream()
    stream.close()
    p.terminate()
 
  def stop(self):
    self._running = false
 
  def save(self, filename):
    
    p = pyaudio.pyaudio()
    if not filename.endswith(".wav"):
      filename = filename + ".wav"
    wf = wave.open(filename, 'wb')
    wf.setnchannels(self.channels)
    wf.setsampwidth(p.get_sample_size(self.format))
    wf.setframerate(self.rate)
    wf.writeframes(b''.join(self._frames))
    wf.close()
    print("saved")
 
if __name__ == "__main__":
  
  for i in range(1,4):
    a = int(input('请输入相应数字开始:'))
    if a == 1:      
      rec = recorder()
      begin = time.time()
      print("start recording")
      rec.start()
      b = int(input('请输入相应数字停止:'))
      if b == 2:
        print("stop recording")
        rec.stop()
        fina = time.time()
        t = fina - begin
        print('录音时间为%ds'%t)
        rec.save("1_%d.wav"%i)

本人在尝试语音识别领域的研究，欢迎一起探讨。

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