#!/usr/bin/python3import urllib.requestimport urllibimport jsonimport base64class BaiduRest:  def __init__(self, cu_id, api_key, api_secert):    # token認證的url    self.token_url = "https://openapi.baidu.com/oauth/2.0/token?grant_type=client_credentials&client_id=%s&client_secret=%s"    # 語音合成的resturl    self.getvoice_url = "http://tsn.baidu.com/text2audio?tex=%s&lan=zh&cuid=%s&ctp=1&tok=%s"    # 語音識別的resturl    self.upvoice_url = 'http://vop.baidu.com/server_api'    self.cu_id = cu_id    self.getToken(api_key, api_secert)    return  def getToken(self, api_key, api_secert):    # 1.獲取token    token_url = self.token_url % (api_key,api_secert)    r_str = urllib.request.urlopen(token_url).read()    token_data = json.loads(r_str)    self.token_str = token_data['access_token']    pass  def getVoice(self, text, filename):    # 2. 向Rest接口提交數據    get_url = self.getvoice_url % (urllib.parse.quote(text), self.cu_id, self.token_str)    voice_data = urllib.request.urlopen(get_url).read()    # 3.處理返回數據    voice_fp = open(filename,'wb+')    voice_fp.write(voice_data)    voice_fp.close()    pass  def getText(self, filename):    # 2. 向Rest接口提交數據    data = {}    # 語音的一些參數    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')    post_data = json.dumps(data)    r_data = urllib.request.urlopen(self.upvoice_url,data=bytes(post_data,encoding="utf-8")).read()    # 3.處理返回數據    return json.loads(r_data)['result']if __name__ == "__main__":  # 我的api_key,供大家測試用，在實際工程中請換成自己申請的應用的key和secert  api_key = "SrhYKqzl3SE1URnAEuZ0FKdT"   api_secert = "hGqeCkaMPb0ELMqtRGc2VjWdmjo7T89d"  # 初始化  bdr = BaiduRest("test_python", api_key, api_secert)  # 將字符串語音合成并保存為out.mp3  bdr.getVoice("你好北京郵電大學!", "out.mp3")  # 識別test.wav語音內容并顯示  print(bdr.getText("out.wav"))

#!/usr/bin/python3# -*- coding: utf-8 -*-from pyaudio import PyAudio, paInt16 import numpy as np from datetime import datetime import waveclass recoder:  NUM_SAMPLES = 2000   #pyaudio內置緩沖大小  SAMPLING_RATE = 8000  #取樣頻率  LEVEL = 500     #聲音保存的閾值  COUNT_NUM = 20   #NUM_SAMPLES個取樣之內出現COUNT_NUM個大于LEVEL的取樣則記錄聲音  SAVE_LENGTH = 8     #聲音記錄的最小長度：SAVE_LENGTH * NUM_SAMPLES 個取樣  TIME_COUNT = 60   #錄音時間，單位s  Voice_String = []  def savewav(self,filename):    wf = wave.open(filename, 'wb')     wf.setnchannels(1)     wf.setsampwidth(2)     wf.setframerate(self.SAMPLING_RATE)     wf.writeframes(np.array(self.Voice_String).tostring())     # wf.writeframes(self.Voice_String.decode())    wf.close()   def recoder(self):    pa = PyAudio()     stream = pa.open(format=paInt16, channels=1, rate=self.SAMPLING_RATE, input=True,       frames_per_buffer=self.NUM_SAMPLES)     save_count = 0     save_buffer = []     time_count = self.TIME_COUNT    while True:      time_count -= 1      # print time_count      # 讀入NUM_SAMPLES個取樣      string_audio_data = stream.read(self.NUM_SAMPLES)       # 將讀入的數據轉換為數組      audio_data = np.fromstring(string_audio_data, dtype=np.short)      # 計算大于LEVEL的取樣的個數      large_sample_count = np.sum( audio_data > self.LEVEL )      print(np.max(audio_data))      # 如果個數大于COUNT_NUM，則至少保存SAVE_LENGTH個塊      if large_sample_count > self.COUNT_NUM:        save_count = self.SAVE_LENGTH       else:         save_count -= 1      if save_count < 0:        save_count = 0       if save_count > 0 :       # 將要保存的數據存放到save_buffer中        #print save_count > 0 and time_count >0        save_buffer.append( string_audio_data )       else:       #print save_buffer      # 將save_buffer中的數據寫入WAV文件，WAV文件的文件名是保存的時刻        #print "debug"        if len(save_buffer) > 0 :           self.Voice_String = save_buffer          save_buffer = []           print("Recode a piece of voice successfully!")          return True      if time_count==0:         if len(save_buffer)>0:          self.Voice_String = save_buffer          save_buffer = []           print("Recode a piece of voice successfully!")          return True        else:          return Falseif __name__ == "__main__":  r = recoder()  r.recoder()  r.savewav("test.wav")