Python语言实现百度语音识别API Python语言实现百度语音识别API的使用实例（python 百度语音识别）

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#encoding=utf-8 
import wave 
import urllib, urllib2, pycurl 
import base64 
import json 
## get access token by api key & secret key 
 
def get_token(): 
  apiKey = "xxxxxxxx" 
  secretKey = "xxxxxxxxx" 
  auth_url = "https://openapi.baidu.com/oauth/2.0/token?grant_type=client_credentials&client_id=" + apiKey + "&client_secret=" + secretKey; 
  res = urllib2.urlopen(auth_url) 
  json_data = res.read() 
  return json.loads(json_data)['access_token'] 
 
def dump_res(buf): 
  print buf 
## post audio to server 
def use_cloud(token): 
  fp = wave.open('vad_0.wav', 'rb') 
  nf = fp.getnframes() 
  f_len = nf * 2 
  audio_data = fp.readframes(nf) 
 
  cuid = "xxxxxxxxxx" #my xiaomi phone MAC 
  srv_url = 'http://vop.baidu.com/server_api' + '?cuid=' + cuid + '&token=' + token 
  http_header = [ 
    'Content-Type: audio/pcm; rate=8000', 
    'Content-Length: %d' % f_len 
  ] 
  c = pycurl.Curl() 
  c.setopt(pycurl.URL, str(srv_url)) #curl doesn't support unicode 
  #c.setopt(c.RETURNTRANSFER, 1) 
  c.setopt(c.HTTPHEADER, http_header)  #must be list, not dict 
  c.setopt(c.POST, 1) 
  c.setopt(c.CONNECTTIMEOUT, 30) 
  c.setopt(c.TIMEOUT, 30) 
  c.setopt(c.WRITEFUNCTION, dump_res) 
  c.setopt(c.POSTFIELDS, audio_data) 
  c.setopt(c.POSTFIELDSIZE, f_len) 
  c.perform() #pycurl.perform() has no return val  
if __name__ == "__main__": 
  token = get_token() 
  use_cloud(token) 

{"corpus_no":"6150045491002357923","err_msg":"success.","err_no":0,"result":["播放小苹果，"],"sn":"243903724071431919050"}