Hello World by Microsoft Speech SDK 5.1

刚刚从 Microsoft 网站下栽了 Speech SDK 5.1 和中日文发声补丁，参考 Speech SDK 文档写了几个小程序，尽管我也是刚刚接触 Speech 若干小时的初学者，还是拿出来共享吧：

 

Speech SDK 采用 COM 的形式封装，和大多数 COM 对象一样，下面是一个似曾相识的初始化：

 

CoInitialize(NULL);

 

CLSIDFromProgID(L"SAPI.SpVoice", &CLSID_SpVoice);

 

ISpVoice * pSpVoice = NULL;

 

if (FAILED(CoCreateInstance(CLSID_SpVoice, NULL,

CLSCTX_INPROC_SERVER, IID_ISpVoice, (void **)&pSpVoice)))

{

cout << "Failed to create instance of ISpVoice!" << endl;

return -1;

}

 

现在我们用它来说 “Hello World” ，非常简单：

 

pSpVoice->Speak(L"Hello World!", SPF_DEFAULT, NULL);

 

最后，清除这一切

 

pSpVoice->Release();

 

CoUninitialize();

 

很容易，是不是？下面我们稍微改变一下：

 

IEnumSpObjectTokens *pSpEnumTokens = NULL;

 

if (SUCCEEDED(SpEnumTokens(SPCAT_VOICES, L"language=409", NULL, &pSpEnumTokens)))

{

ISpObjectToken *pSpToken = NULL;

 

while (SUCCEEDED(pSpEnumTokens->Next(1, &pSpToken, NULL)) &&

pSpToken != NULL)

{

pSpVoice->SetVoice(pSpToken);

pSpVoice->Speak(L"Hello World!", SPF_DEFAULT, NULL);

 

pSpToken->Release();

}

 

pSpEnumTokens->Release();

}

 

如果只需要一种 Voice ， SpFindBestToken 更加方便：

 

ISpObjectToken * pSpObjectToken = NULL;

 

if (SUCCEEDED(SpFindBestToken(SPCAT_VOICES, L"gender=female",

NULL, &pSpObjectToken)))

{

pSpVoice->SetVoice(pSpObjectToken);

 

pSpVoice->Speak(L"Hello World!", SPF_DEFAULT, NULL);

 

pSpObjectToken->Release();

}

 

现在改为使用中文：

 

ISpObjectToken * pSpObjectToken = NULL;

 

if (SUCCEEDED(SpFindBestToken(SPCAT_VOICES, L"language=804",

NULL, &pSpObjectToken)))

{

pSpVoice->SetVoice(pSpObjectToken);

 

pSpVoice->Speak(L" 世界你好！ ", SPF_DEFAULT, NULL);

 

pSpObjectToken->Release();

}

 

ISpVoice::Speak 可以允许朗读的句子中包含 XML 标记，其实以上这一切用 XML 标记将变得十分简单：

 

pSpVoice->Speak(L"<lang langid=\"804\"> 世界你好！ </lang>", SPF_DEFAULT, NULL);

 

pSpVoice->Speak(L"<voice required=\"gender=female\">Hello World!</voice>",

SPF_DEFAULT, NULL);

最后，以一段简单的报时结束这篇文章：

 

SYSTEMTIME st;

GetLocalTime(&st);

 

ISpObjectToken * pSpObjectToken = NULL;

 

if (SUCCEEDED(SpFindBestToken(SPCAT_VOICES, L"language=804", NULL,

&pSpObjectToken)))

{

pSpVoice->SetVoice(pSpObjectToken);

 

WCHAR wsz[128];

 

swprintf(wsz,

L" 现在是 <context ID = \"CHS_Date_ymdhm\">%.4d-%.02d-%.2d %.2d:%.02d</context>",

st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute);

 

pSpVoice->Speak(wsz, SPF_IS_XML, NULL);

 

pSpObjectToken->Release();

}

 

■ 点到为止，希望这篇文章能带给初学者一点启发。