文本转声音，TTS语音实现

最近公司做的棋牌游戏，领导说客户端的聊天内容要能够实现发音，也就是说玩家发的文本还要自动读出来，如果把语音包集成到客户端势必会造成客户端安装文件大增，经商量得出此方案：B/s端实现，大致过程这样客户端请求B/S端,B/S端生成语音文件，客户端再下载。

在做文本转语音，之前用的是匿名类型+反射，不过生成的语音文件有时没声音，文件大小也只有几个字节，生成不成功，原因未知 
！代码如下：

  if (!string.IsNullOrEmpty(context.Request.QueryString["txt"]) && !string.IsNullOrEmpty(context.Request.QueryString["type"]))
            {
                try
                {
                    string type = context.Request.QueryString["type"];
                    string txt = context.Request.QueryString["txt"];
                    string fileName = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(type + txt, "MD5");
                    string filePath = "/files/" + fileName + ".wav";
                    if (File.Exists(context.Server.MapPath(filePath)))
                    {
                        context.Response.Write(fileName); ;
                    }
                    else
                    {
                        dynamic synth = System.Activator.CreateInstance(System.Type.GetTypeFromProgID("SAPI.SpVoice"));
                        dynamic fileStream = System.Activator.CreateInstance(System.Type.GetTypeFromProgID("SAPI.SpFileStream"));

                        if (type == "2")
                        {
                            synth.Voice = synth.GetVoices("Name=VW Lily").Item(0);
                        }
                        else
                        {
                            synth.Voice = synth.GetVoices("Name=VW Liang").Item(0);
                        }
                        synth.Rate = -1;

                        fileStream.Open(context.Server.MapPath(filePath), SpeechStreamFileMode.SSFMCreateForWrite, false);
                        synth.AudioOutputStream = fileStream;
                        synth.Speak(txt);
                        synth.WaitUntilDone(1000);
                        synth.Dispose();
                        fileStream.Close();

                        context.Response.Write(fileName);
                        context.Response.End();

                    }
                }
                catch
                {
                    context.Response.Write("0");
                    context.Response.End();
                }

            } 

 

 

后来换了一种方式，使用.net 3.0生成，目前可以测试正常，代码如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Speech.Synthesis;
using System.IO;
using System.Threading;

namespace DokeeTTS
{
    /// <summary>
    /// _default 的摘要说明
    /// </summary>
    public class _default : IHttpHandler
    {

        public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/plain";

            string txt = context.Request.QueryString["txt"];
            string type = context.Request.QueryString["type"];
            string fileName = "";

            fileName = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(type + txt, "MD5");
            Thread t = new Thread(() =>
                {
                    SpeechSynthesizer syth = new SpeechSynthesizer();
                    if (type == "2")
                    {
                        syth.SelectVoice("VW Lily");
                    }
                    else
                    {
                        syth.SelectVoice("VW Liang");
                    }
                    string filePath = "/files/" + fileName + ".wav";
                    if (File.Exists(context.Server.MapPath(filePath)))
                    {
                        context.Response.Write(fileName); ;
                    }
                    else
                    {
                        syth.SetOutputToWaveFile(context.Server.MapPath(filePath));
                        syth.Speak(txt);
                    }
                    syth.Dispose();
                });
            t.Start();
            t.Join();

            context.Response.Write(fileName);
            context.Response.Flush();
            context.Response.End();

        }

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }

}