问语音合成问题：Appid is not registered in TTS, 在哪注册？

requestId:c91823c2-a6ff-416e-a9e5-4abaf275af58

用了在线代码生成：报错[TencentCloudSDKException] code:InvalidParameterValue.AppIdNotRegistered message:Appid is not registered in TTS service, please register it on the official website

appId没有注册是什么意思, 找不到注册的地方