首先要安装SpeechSDK5.1 开发包和SpeechSDK5.1 Langague Pack（中英文） 语言包，不过VS2010里是自带SpeechSDK5.0的com组件的，也可以用。
简单讲一下四个方法：
朗读时，使用
下面就直接给出实例代码：
public void Analyse(string strSpeak)
{
int iCbeg = 0;
int iEbeg = 0;
bool IsChina = true;
for (int i = 0; i < strSpeak.Length; i++)
{
char chr = strSpeak[i];
if (IsChina)
{
if (Convert.ToInt32(chr) <= 122 && Convert.ToInt32(chr) >= 65)
{
int iLen = i - iCbeg;
string strValue =
strSpeak.Substring(iCbeg, iLen);
SpeakChina(strValue);
iEbeg = i;
IsChina = false;
}
}
else
{
if (Convert.ToInt32(chr) > 122 || Convert.ToInt32(chr) < 65)
{
int iLen = i - iEbeg;
string strValue =
strSpeak.Substring(iEbeg, iLen);
this.SpeakEnglishi(strValue);
iCbeg = i;
IsChina = true;
}
}
}
if (IsChina)
{ int iLen = strSpeak.Length - iCbeg;
string strValue = strSpeak.Substring(iCbeg, iLen);
SpeakChina(strValue);
}
else
{
int iLen = strSpeak.Length - iEbeg;
string strValue = strSpeak.Substring(iEbeg, iLen);
SpeakEnglishi(strValue);
}
}
//中文
private void SpeakChina(string speak)
{
voice = new SpVoice();
voice.Voice = voice.GetVoices(string.Empty, string.Empty).Item(3);//其中3为中文，024为英文
voice.Speak(speak, SpeechVoiceSpeakFlags.SVSFDefault);
}
//英文