01形态音频转出文件

import wave, codecs
import numpy as np

wavfile =  wave.open(u'music.wav',"rb")
params = wavfile.getparams()
nframes = params[3] # 采样点数
datawav = wavfile.readframes(nframes) # 读取音频，字符串格式
wavfile.close()
datause = np.fromstring(datawav, dtype = np.short) # 将字符串转化为短整型

result_bin, result_hex = '', ''
mx = 0
for i in range(len(datause) - 1):
    if datause[i] > mx:
        mx = datause[i]
    try:
        if(datause[i] < 0 and datause[i+1] >= 0):
            if (mx - 24000 > 0):
                result_bin += '1'
                mx = datause[i+1]
            else:
                result_bin += '0'
                mx = datause[i+1]
    except:
        break

for i in range(0, len(result_bin), 4):
    result_hex += hex(int(result_bin[i : i + 4], 2))[2:]

file_rar = open("result.txt","wb")
file_rar.write(codecs.decode(result_hex, 'hex_codec'))
file_rar.close()