一個簡單的 Microsoft Speech SDK 5.1 例子

剛剛從 Microsoft 網站下栽了 Speech SDK 5.1 和中日文發聲補丁，參考 Speech SDK文檔寫了幾個小程序，儘管我也是剛剛接觸 Speech若干小時的初學者，還是拿出來共享吧：

 

Speech SDK 採用 COM 的形式封裝，和大多數COM對象一樣，下面是一個似曾相識的初始化：

 

    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;

    }

 

    現在我們用它來說 “Hello World”，非常簡單：

 

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

 

最後，清除這一切

 

pSpVoice->Release();

 

CoUninitialize();

 

很容易，是不是？下面我們稍微改變一下：

 

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();

}

 

如果只需要一種 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();

}

 

現在改爲使用中文：

 

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 可以允許朗讀的句子中包含 XML 標記，其實以上這一切用 XML 標記將變得十分簡單：

 

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);

 

最後，以一段簡單的報時結束這篇文章：

 

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"現在是<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();

}