Python--pyaudio音效卡錄音__Python

1、關於pyaudio的使用，請參看前一篇博文：

Python--pyAudio播放wav格式聲音： http://blog.csdn.net/xsc_c/article/details/8944077

2、關於wav檔案的操作，參看博文：

Python--讀取wav格式檔案： http://blog.csdn.net/xsc_c/article/details/8941338

3、錄音的過程與播放使用的函數類似，可以參考使用手冊：

API文檔地址 ： http://people.csail.mit.edu/hubert/pyaudio/docs/#class-pyaudio

4、python代碼

#!usr/bin/env python#coding=utf-8import numpy as npfrom pyaudio import PyAudio,paInt16from datetime import datetimeimport wavefrom Tkinter import *#define of paramsNUM_SAMPLES = 2000framerate = 8000channels = 1sampwidth = 2#record timeTIME = 10def save_wave_file(filename, data):'''save the date to the wav file'''wf = wave.open(filename, 'wb')wf.setnchannels(channels)wf.setsampwidth(sampwidth)wf.setframerate(framerate)wf.writeframes("".join(data))wf.close()def my_button(root,label_text,button_text,button_func):      '''''function of creat label and button'''      #label details      label = Label(root)      label['text'] = label_text      label.pack()      #label details      button = Button(root)      button['text'] = button_text      button['command'] = button_func      button.pack()def record_wave():#open the input of wavepa = PyAudio()stream = pa.open(format = paInt16, channels = 1,rate = framerate, input = True,frames_per_buffer = NUM_SAMPLES)save_buffer = []count = 0while count < TIME*4:#read NUM_SAMPLES sampling datastring_audio_data = stream.read(NUM_SAMPLES)save_buffer.append(string_audio_data)count += 1print '.'filename = datetime.now().strftime("%Y-%m-%d_%H_%M_%S")+".wav"save_wave_file(filename, save_buffer)save_buffer = []print filename, "saved"def main():root = Tk()my_button(root,"Record a wave","clik to record",record_wave)root.mainloop()if __name__ == "__main__":main()

5、效果

介面：

儲存檔案：