科大讯飞语音合成API
/doc/tts/online_tts/API.html
首先打开控制台创建应用，获得APP_ID，APP_KEY，APP_SECRET，语音合成只有500次的免费调用次数。
调用示例：
# -*- coding:utf-8 -*-import websocketimport datetimeimport hashlibimport base64import hmacimport jsonfrom urllib.parse import urlencodeimport timeimport sslfrom wsgiref.handlers import format_date_timefrom datetime import datetimefrom time import mktimeimport _thread as threadimport osSTATUS_FIRST_FRAME = 0 # 第一帧的标识STATUS_CONTINUE_FRAME = 1 # 中间帧标识STATUS_LAST_FRAME = 2 # 最后一帧的标识class Ws_Param(object):# 初始化def __init__(self, APPID, APIKey, APISecret, Text):self.APPID = APPIDself.APIKey = APIKeyself.APISecret = APISecretself.Text = Text# 公共参数(common)monArgs = {"app_id": self.APPID}# 业务参数(business)，更多个性化参数可在官网查看self.BusinessArgs = {"aue": "lame", "auf": "audio/L16;rate=16000", "vcn": "xiaoyan", "tte": "utf8","ent":"aisound"}self.Data = {"status": 2, "text": str(base64.b64encode(self.Text.encode('utf-8')), "UTF8")}#使用小语种须使用以下方式，此处的unicode指的是 utf16小端的编码方式，即"UTF-16LE"”#self.Data = {"status": 2, "text": str(base64.b64encode(self.Text.encode('utf-16')), "UTF8")}# 生成urldef create_url(self):url = 'wss://tts-/v2/tts'# 生成RFC1123格式的时间戳now = datetime.now()date = format_date_time(mktime(now.timetuple()))# 拼接字符串signature_origin = "host: " + "ws-" + "\n"signature_origin += "date: " + date + "\n"signature_origin += "GET " + "/v2/tts " + "HTTP/1.1"# 进行hmac-sha256进行加密signature_sha = hmac.new(self.APISecret.encode('utf-8'), signature_origin.encode('utf-8'),digestmod=hashlib.sha256).digest()signature_sha = base64.b64encode(signature_sha).decode(encoding='utf-8')authorization_origin = "api_key=\"%s\", algorithm=\"%s\", headers=\"%s\", signature=\"%s\"" % (self.APIKey, "hmac-sha256", "host date request-line", signature_sha)authorization = base64.b64encode(authorization_origin.encode('utf-8')).decode(encoding='utf-8')# 将请求的鉴权参数组合为字典v = {"authorization": authorization,"date": date,"host": "ws-"}# 拼接鉴权参数，生成urlurl = url + '?' + urlencode(v)# print("date: ",date)# print("v: ",v)# 此处打印出建立连接时候的url,参考本demo的时候可取消上方打印的注释，比对相同参数时生成的url与自己代码生成的url是否一致# print('websocket url :', url)return urldef on_message(ws, message):try:message =json.loads(message)code = message["code"]sid = message["sid"]audio = message["data"]["audio"]audio = base64.b64decode(audio)status = message["data"]["status"]print(message)if status == 2:print("ws is closed")ws.close()if code != 0:errMsg = message["message"]print("sid:%s call error:%s code is:%s" % (sid, errMsg, code))else:with open('./demo.pcm', 'ab') as f:f.write(audio)except Exception as e:print("receive msg,but parse exception:", e)# 收到websocket错误的处理def on_error(ws, error):print("### error:", error)# 收到websocket关闭的处理def on_close(ws):print("### closed ###")# 收到websocket连接建立的处理def on_open(ws):def run(*args):d = {"common": monArgs,"business": wsParam.BusinessArgs,"data": wsParam.Data,}d = json.dumps(d)print("------>开始发送文本数据")ws.send(d)if os.path.exists('./demo.pcm'):os.remove('./demo.pcm')thread.start_new_thread(run, ())if __name__ == "__main__":# 测试时候在此处正确填写相关信息即可运行wsParam = Ws_Param(APPID='XXXXXXX', APIKey='XXXXXXXXXXXXXX',APISecret='XXXXXXXXXX',Text="这是一个语音合成示例")websocket.enableTrace(False)wsUrl = wsParam.create_url()ws = websocket.WebSocketApp(wsUrl, on_message=on_message, on_error=on_error, on_close=on_close)ws.on_open = on_openws.run_forever(sslopt={"cert_reqs": ssl.CERT_NONE})
需要安装websocket模块才能正常运行
pip3 install websocket-client
