如何用python调用百度语音识别

Posted 2023-03-16

参考技术A #!/usr/bin/env python
# -*- coding: utf-8 -*-
########################################################################
#
# Copyright (c) 2017 aibot.me, Inc. All Rights Reserved
#
########################################################################

"""
File: util_voice.py
Author: darrenwang([e-mail])
Date: 2017/03/24 11:29:50
Brief:
"""

import sys
import json
import time
import base64
import urllib
import urllib2
import requests

class BaiduRest:
def __init__(self, cu_id, api_key, api_secert):
self.token_url = "https://openapi.baidu.com/oauth/2.0/token?grant_type=client_credentials&client_id=%s&client_secret=%s"
self.getvoice_url = "http://tsn.baidu.com/text2audio?tex=%s&lan=zh&cuid=%s&ctp=1&tok=%s"
self.upvoice_url = 'http://vop.baidu.com/server_api'

self.cu_id = cu_id
self.get_token(api_key, api_secert)
return

def get_token(self, api_key, api_secert):
token_url = self.token_url % (api_key,api_secert)
r_str = urllib2.urlopen(token_url).read()
token_data = json.loads(r_str)
self.token_str = token_data['access_token']
return True

#语音合成
def text2audio(self, text, filename):
get_url = self.getvoice_url % (urllib2.quote(text), self.cu_id, self.token_str)
voice_data = urllib2.urlopen(get_url).read()
voice_fp = open(filename,'wb+')
voice_fp.write(voice_data)
voice_fp.close()
return True

##语音识别
def audio2text(self, filename):
data =
data['format'] = 'wav'
data['rate'] = 8000
data['channel'] = 1
data['cuid'] = self.cu_id
data['token'] = self.token_str

wav_fp = open(filename,'rb')
voice_data = wav_fp.read()
data['len'] = len(voice_data)
#data['speech'] = base64.b64encode(voice_data).decode('utf-8')
data['speech'] = base64.b64encode(voice_data).replace('\n', '')
#post_data = json.dumps(data)
result = requests.post(self.upvoice_url, json=data, headers='Content-Type': 'application/json')
data_result = result.json()
print data_result
return data_result['result'][0]

def test_voice():
api_key = "SrhYKqzl3SE1URnAEuZ0FKdT"
api_secert = "hGqeCkaMPb0ELMqtRGc2VjWdmjo7T89d"
bdr = BaiduRest("test_python", api_key, api_secert)

#生成
start = time.time()
bdr.text2audio("你好啊", "out.wav")
using = time.time() - start
print using

#识别
start = time.time()
#result = bdr.audio2text("test.wav")
#result = bdr.audio2text("weather.pcm")
using = time.time() - start
print using, result

return True

if __name__ == "__main__":
test_voice()