閒來無事做的一個demo。本來想做成網站的形式，發現不知道怎麼在請求頭裡加資訊，於是就做成了Winform版的。

去官網開通sdk

沒註冊的先要註冊，然後建立應用，應用平臺選擇webAPI

回到控制檯，新增新服務--線上語音合成、語音聽寫

新增IP白名單，把ip加進去（直接百度IP就可以查到自己的IP地址），記住這裡的APIKey，一會要用

還有這裡的APPID一會也有用處

在VS中新建Winform專案，在app.config填入剛才的appid、apikey

接下來就是寫處理邏輯了。其實很簡單，就是檢視官方的sdk，跟著一步一步做就行了。直接附上程式碼：

語音合成

private void btnTTS_Click(object sender, EventArgs e)
        {
            String appId = ConfigurationManager.AppSettings["appId"];
            String apiKey = ConfigurationManager.AppSettings["apiKeyTTS"];
            String realIp = ConfigurationManager.AppSettings["realIp"];
            String curTime = Utils.ConvertDateTimeLong(DateTime.Now).ToString();

            Dictionary<string, string> xParams = new Dictionary<string, string>();
            xParams.Add("auf", ConfigurationManager.AppSettings["aufTTS"]);
            xParams.Add("aue", ConfigurationManager.AppSettings["aueTTS"]);
            xParams.Add("voice_name", ConfigurationManager.AppSettings["voice_nameTTS"]);
            xParams.Add("speed", ConfigurationManager.AppSettings["speedTTS"]);
            xParams.Add("volume", ConfigurationManager.AppSettings["volumeTTS"]);
            xParams.Add("pitch", ConfigurationManager.AppSettings["pitchTTS"]);
            xParams.Add("engine_type", ConfigurationManager.AppSettings["engine_typeTTS"]);
            xParams.Add("text_type", ConfigurationManager.AppSettings["text_typeTTS"]);
            string json = JsonConvert.SerializeObject(xParams);
            String param = Convert.ToBase64String(Encoding.UTF8.GetBytes(json));//"eyJhdWYiOiAiYXVkaW8vTDE2O3JhdGU9MTYwMDAiLCJhdWUiOiAicmF3Iiwidm9pY2VfbmFtZSI6ICJ4aWFveWFuIiwic3BlZWQiOiAiNTAiLCJ2b2x1bWUiOiAiNTAiLCJwaXRjaCI6ICI1MCIsImVuZ2luZV90eXBlIjogImludHA2NSIsInRleHRfdHlwZSI6ICJ0ZXh0In0=";
            String checkSum = Utils.GetMD5(apiKey + curTime + param);

            HttpWebRequest req = WebRequest.CreateHttp("http://api.xfyun.cn/v1/service/v1/tts");
            req.Method = "POST";
            //設定請求頭
            req.ContentType = "application/x-www-form-urlencoded; charset=utf-8";
            req.Headers.Add("X-Appid", appId);
            req.Headers.Add("X-CurTime", curTime);
            req.Headers.Add("X-Param", param);
            req.Headers.Add("X-Real-Ip", realIp);
            req.Headers.Add("X-CheckSum", checkSum);
            //將文字框中文字寫入到post資料
            using (Stream stream = req.GetRequestStream())
            {
                string text = System.Web.HttpUtility.HtmlEncode(txtTTS.Text);
                byte[] buffer = Encoding.UTF8.GetBytes("text=" + text);
                stream.Write(buffer, 0, buffer.Length);
            }
            //獲取響應
            using (WebResponse resp = req.GetResponse())
            {
                Stream stream = resp.GetResponseStream();
                //如果成功，儲存為音訊檔案
                if (resp.ContentType.Contains("audio/mpeg"))
                {
                    string filename = "temp.wav";//預設wav檔案,檔案型別與配置檔案中aue的值有關
                    if ("lame" == ConfigurationManager.AppSettings["aueTTS"])
                    {
                        filename = "temp.mp3";
                    }
                    using (FileStream fs = new FileStream(filename, FileMode.Create))
                    {
                        int b = -1;
                        while ((b = stream.ReadByte()) != -1)
                        {
                            fs.WriteByte((byte)b);
                        }
                        //檔案流指標回到開始以便進行播放
                        fs.Seek(0, SeekOrigin.Begin);
                        SoundPlayer sp = new SoundPlayer(fs);
                        sp.Load();
                        sp.Play();
                    }

                }
                //否則獲取失敗，輸出錯誤資訊
                else
                {
                    StreamReader streamReader = new StreamReader(stream, Encoding.GetEncoding("UTF-8"));
                    string retString = streamReader.ReadToEnd();
                    ErrorCode errCode = JsonConvert.DeserializeObject<ErrorCode>(retString);
                    ErrorMessage errMsg = new ErrorMessage(errCode);

                    txtResult.Text = errMsg.ToString() + Environment.NewLine + errCode.ToString();
                }
                stream.Close();
            }
        }
 

語音識別

private void btnSTT_Click(object sender, EventArgs e)
        {
            //先選擇一個音訊檔案,準備好要Post傳送的資料
            string audio = string.Empty;
            using (OpenFileDialog ofd = new OpenFileDialog())
            {
                ofd.Title = "選擇一個音訊檔案進行語音轉文字";
                ofd.Filter = "未壓縮的聲音|*.wav;*.pcm";
                ofd.ShowDialog();
                if (ofd.FileName == "")
                {
                    return;
                }
                //讀取檔案進行base64編碼
                using (FileStream fs = new FileStream(ofd.FileName, FileMode.Open))
                {
                    byte[] array = new byte[fs.Length];
                    fs.Read(array, 0, array.Length);
                    string base64Audio = Convert.ToBase64String(array);
                    string text = System.Web.HttpUtility.HtmlEncode(base64Audio);
                    audio = System.Web.HttpUtility.UrlEncode(text);
                    //編碼後長度不超過2兆
                    if (Encoding.UTF8.GetByteCount(audio) > 2 * 1024 * 1024)
                    {
                        MessageBox.Show("檔案超過了2兆，無法提交！", "檔案太大", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                        return;
                    }
                }

            }

            //獲取appid、apikey、curTime
            String appId = ConfigurationManager.AppSettings["appId"];
            String apiKey = ConfigurationManager.AppSettings["apiKeySTT"];
            String realIp = ConfigurationManager.AppSettings["realIp"];
            String curTime = Utils.ConvertDateTimeLong(DateTime.Now).ToString();
            //計算校驗和
            Dictionary<string, string> xParams = new Dictionary<string, string>();
            xParams.Add("engine_type", ConfigurationManager.AppSettings["engine_typeSTT"]);
            xParams.Add("aue", ConfigurationManager.AppSettings["aueSTT"]);
            string json = JsonConvert.SerializeObject(xParams);
            string param = Convert.ToBase64String(Encoding.UTF8.GetBytes(json));
            String checkSum = Utils.GetMD5(apiKey + curTime + param);

            HttpWebRequest req = WebRequest.CreateHttp("http://api.xfyun.cn/v1/service/v1/iat");
            req.Method = "POST";
            //設定請求頭
            req.ContentType = "application/x-www-form-urlencoded; charset=utf-8";
            req.Headers.Add("X-Appid", appId);
            req.Headers.Add("X-CurTime", curTime);
            req.Headers.Add("X-Param", param);
            req.Headers.Add("X-Real-Ip", realIp);
            req.Headers.Add("X-CheckSum", checkSum);

            //將base64編碼的音訊檔案寫入到post資料
            using (Stream stream = req.GetRequestStream())
            {
                byte[] buffer = Encoding.UTF8.GetBytes("audio=" + audio);
                stream.Write(buffer, 0, buffer.Length);
            }

            //獲取響應流
            using (Stream stream = req.GetResponse().GetResponseStream())
            {
                //將響應json反序列化為物件
                StreamReader streamReader = new StreamReader(stream, Encoding.GetEncoding("UTF-8"));
                string retString = streamReader.ReadToEnd();
                ErrorCode errCode = JsonConvert.DeserializeObject<ErrorCode>(retString);
                ErrorMessage errMsg = new ErrorMessage(errCode);
                //如果獲取失敗，輸出錯誤資訊

                txtResult.Text = errMsg.ToString() + Environment.NewLine + errCode.ToString();//retString;
                //如果成功，顯示轉換後的字串
                txtResult.Text = errMsg.ToString();
            }
        }