unity C# 实现对接阿里云的语音合成webapi 主要功能 获取token语音合成 帮助正在做，或者即将做的同学踩坑

下载地址 https://download.youkuaiyun.com/download/qq_39735878/12447404
1，获取token
appkeyid 和 appkeyscrect 换成自己的

 void GetTokenId()
    {
        Timestamp = DateTime.UtcNow.ToString("yyyy-MM-ddTHH:mm:ssZ");
        Timestamp = UriEspRepacle(Timestamp);
        //Debug.Log("时间:" + Timestamp);
        SignatureNonce = System.Guid.NewGuid().ToString("D");
        //Debug.Log("UUID:" + SignatureNonce);
        string pingjiestr = string.Format("AccessKeyId={0}&Action=CreateToken&Format=JSON&RegionId=cn-shanghai&SignatureMethod=HMAC-SHA1&SignatureNonce={1}&SignatureVersion=1.0&Timestamp={2}&Version=2019-02-28", AccessKeyId, SignatureNonce, Timestamp);
        //Debug.Log("请求原始字符串:" + pingjiestr);
        string StringToSign = createStringToSign("GET", "/", pingjiestr);
        //Debug.Log("编码之后:" + StringToSign);
        Signature = UriEspRepacle(HMACSHA1Texts(StringToSign, AccessScrert + "&"));
        //Debug.Log("加密之后:" + Signature);
        string querysUrl = url + "?Signature=" + Signature + "&" + pingjiestr;
        //Debug.Log("请求路径:" + querysUrl);
        StartCoroutine(GetToken(querysUrl));

        // StartCoroutine(PostToken(url));
    } 
    ////服务器返回
    //string fuwu = "GET&%2F&AccessKeyId%3DLTAI4FvStuRfQKTVvq8uPR5Z%26Action%3DCreateToken%26Format%3DJSON%26RegionId%3Dcn-shanghai%26SignatureMethod%3DHMAC-SHA1%26SignatureNonce%3D180485e0-1aec-4dc4-8889-e6d167cf383f%26SignatureVersion%3D1.0%26Timestamp%3D2020-05-19T00%253A46%253A17Z%26Version%3D2019-02-28";
    ////自己
    //string ziji = "GET&%2F&AccessKeyId%3DLTAI4FvStuRfQKTVvq8uPR5Z%26Action%3DCreateToken%26Format%3DJSON%26RegionId%3Dcn-shanghai%26SignatureMethod%3DHMAC-SHA1%26SignatureNonce%3D180485e0-1aec-4dc4-8889-e6d167cf383f%26SignatureVersion%3D1.0%26Timestamp%3D2020-05-19T00%3A46%3A17Z%26Version%3D2019-02-28";
    IEnumerator GetToken(string url)
    {
        UnityWebRequest WebRequest = UnityWebRequest.Get(url);

        yield return WebRequest.SendWebRequest();

        if (string.IsNullOrEmpty(WebRequest.error))
        {
            if (WebRequest.isDone)
            {
                Debug.Log(WebRequest.downloadHandler.text);
                JieXiJsonNode(WebRequest.downloadHandler.text);
            }
        }
        else
        {

            Debug.Log(WebRequest.error);
        }
    }

2 语音合成

IEnumerator GetTTS()
    {
        url = string.Format("https://nls-gateway.cn-shanghai.aliyuncs.com/stream/v1/tts?appkey={0}&token={1}&text={2}&format=wav&sample_rate=16000", appkey, usertokenid, content);
        Debug.Log(url);
        Uri uri = new Uri(url);
        audioSource = gameObject.GetComponent<AudioSource>();
        audioSource.clip = AudioClip.Create("test", 16000 * 60, 1, 16000, true, OnAudioRead);
        audioSource.Play();
        audioSource.loop = false;
        UnityWebRequest WebRequest = UnityWebRequestMultimedia.GetAudioClip(uri, AudioType.WAV);
        WebRequest.SendWebRequest();
        do
        {
            yield return null;
            int length = ((int)WebRequest.downloadedBytes - 开始位置);
            if (length > 0)
            {
                byte[] byteArray = GetByte(开始位置, length, WebRequest.downloadHandler.data);
                float[] sounddata = new float[byteArray.Length / 2];
                for (int i = 0; i < sounddata.Length; i++)
                {
                    sounddata[i] = bytesToFloat(byteArray[i * 2], byteArray[i * 2 + 1]);
                    //添加数据
                    播放队列.Enqueue(sounddata[i]);
                }
                总长度 += sounddata.Length;
            }
        } while (!WebRequest.isDone);
        是否接收结束 = true;
        Debug.Log("数据接受结束");
        Debug.Log("总长度:" + 总长度);
        while (true)
        {
            yield return null;
            if (audioSource.timeSamples > 总长度)
            {
                Debug.Log("音频播放结束");
                audioSource.Stop();
                break;
            }
        }
    }  

appid 换成自己的
链接地址：https://download.youkuaiyun.com/download/qq_39735878/12447404