C++ は Microsoft 独自の音声認識インターフェイスを呼び出して、すぐに使い始めることができます。

#include <sapi.h> //导入语音头文件#pragma comment(lib,"sapi.lib") //导入语音头文件库

void  CBodyBasics::MSSSpeak(LPCTSTR speakContent)// speakContent为LPCTSTR型的字符串,调用此函数即可将文字转为语音{
    ISpVoice *pVoice = NULL;    //初始化COM接口

    if (FAILED(::CoInitialize(NULL)))
        MessageBox(NULL, (LPCWSTR)L"COM接口初始化失败！", (LPCWSTR)L"提示", MB_ICONWARNING | MB_CANCELTRYCONTINUE | MB_DEFBUTTON2);    //获取SpVoice接口

    HRESULT hr = CoCreateInstance(CLSID_SpVoice, NULL, CLSCTX_ALL, IID_ISpVoice, (void**)&pVoice);    if (SUCCEEDED(hr))
    {
        pVoice->SetVolume((USHORT)100); //设置音量，范围是 0 -100
        pVoice->SetRate(2); //设置速度，范围是 -10 - 10
        hr = pVoice->Speak(speakContent, 0, NULL);

        pVoice->Release();

        pVoice = NULL;
    }    //释放com资源
    ::CoUninitialize();
}

#include <sapi.h> //导入语音头文件#pragma comment(lib,"sapi.lib") //导入语音头文件库#include //语音识别头文件#include //要用到CString#pragma onceconst int WM_RECORD = WM_USER + 100;//定义消息

//定义变量CComPtr<ISpRecognizer>m_cpRecoEngine;// 语音识别引擎(recognition)的接口。CComPtr<ISpRecoContext>m_cpRecoCtxt;// 识别引擎上下文(context)的接口。CComPtr<ISpRecoGrammar>m_cpCmdGrammar;// 识别文法(grammar)的接口。CComPtr<ISpStream>m_cpInputStream;// 流()的接口。CComPtr<ISpObjectToken>m_cpToken;// 语音特征的(token)接口。CComPtr<ISpAudio>m_cpAudio;// 音频(Audio)的接口。(用来保存原来默认的输入流)ULONGLONG  ullGrammerID;

//语音识别初始化函数void  CBodyBasics::MSSListen()
{    //初始化COM接口

    if (FAILED(::CoInitialize(NULL)))
        MessageBox(NULL, (LPCWSTR)L"COM接口初始化失败！", (LPCWSTR)L"提示", MB_ICONWARNING | MB_CANCELTRYCONTINUE | MB_DEFBUTTON2);


    HRESULT hr = m_cpRecoEngine.CoCreateInstance(CLSID_SpSharedRecognizer);//创建Share型识别引擎
    if (SUCCEEDED(hr))
    {


        hr = m_cpRecoEngine->CreateRecoContext(&m_cpRecoCtxt);//创建识别上下文接口

        hr = m_cpRecoCtxt->SetNotifyWindowMessage(m_hWnd, WM_RECORD, 0, 0);//设置识别消息

        const ULONGLONG ullInterest = SPFEI(SPEI_SOUND_START) | SPFEI(SPEI_SOUND_END) | SPFEI(SPEI_RECOGNITION);//设置我们感兴趣的事件
        hr = m_cpRecoCtxt->SetInterest(ullInterest, ullInterest);

        hr = SpCreateDefaultObjectFromCategoryId(SPCAT_AUDIOIN, &m_cpAudio);
        m_cpRecoEngine->SetInput(m_cpAudio, true);        //创建语法规则
        //dictation听说式
        //hr = m_cpRecoCtxt->CreateGrammar(GIDDICTATION, &m_cpDictationGrammar);
        //if (SUCCEEDED(hr))
        //{
        //  hr = m_cpDictationGrammar->LoadDictation(NULL, SPLO_STATIC);//加载词典
        //}

        //C&C命令式，此时语法文件使用xml格式
        ullGrammerID = 1000;
        hr = m_cpRecoCtxt->CreateGrammar(ullGrammerID, &m_cpCmdGrammar);

        WCHAR wszXMLFile[20] = L"";//加载语法
        MultiByteToWideChar(CP_ACP, 0, (LPCSTR)"CmdCtrl.xml", -1, wszXMLFile, 256);//ANSI转UNINCODE
        hr = m_cpCmdGrammar->LoadCmdFromFile(wszXMLFile, SPLO_DYNAMIC);        //MessageBox(NULL, (LPCWSTR)L"语音识别已启动！", (LPCWSTR)L"提示", MB_CANCELTRYCONTINUE );
        //激活语法进行识别
        //hr = m_cpDictationGrammar->SetDictationState(SPRS_ACTIVE);//dictation
        hr = m_cpCmdGrammar->SetRuleState(NULL, NULL, SPRS_ACTIVE);//C&C
        hr = m_cpRecoEngine->SetRecoState(SPRST_ACTIVE);

    }    else
    {
        MessageBox(NULL, (LPCWSTR)L"语音识别引擎启动出错！", (LPCWSTR)L"警告", MB_OK);        exit(0);
    }    //释放com资源
    ::CoUninitialize();    //hr = m_cpCmdGrammar->SetRuleState(NULL, NULL, SPRS_INACTIVE);//C&C}

//消息处理函数USES_CONVERSION;
    CSpEvent event;    if (m_cpRecoCtxt)
    {        while (event.GetFrom(m_cpRecoCtxt) == S_OK){            switch (event.eEventId)
            {            case SPEI_RECOGNITION:
            {                                     //识别出了语音
                                     m_bGotReco = TRUE; 

                                     static const WCHAR wszUnrecognized[] = L"<Unrecognized>";

                                     CSpDynamicString dstrText;                                     ////取得识别结果 
                                     if (FAILED(event.RecoResult()->GetText(SP_GETWHOLEPHRASE, SP_GETWHOLEPHRASE, TRUE, &dstrText, NULL)))
                                     {
                                         dstrText = wszUnrecognized;
                                     }

                                     BSTR SRout;
                                     dstrText.CopyToBSTR(&SRout);
                                     CString Recstring;
                                     Recstring.Empty();
                                     Recstring = SRout;                                    //做出反应（*****消息反应模块*****）
                                    if (Recstring == "发短信")
                                     {                                         //MessageBox(NULL, (LPCWSTR)L"好的", (LPCWSTR)L"提示", MB_OK);
                                         MSSSpeak(LPCTSTR(_T("好，马上发短信！")));

                                     }                                     else if (Recstring == "李雷")
                                     {
                                         MSSSpeak(LPCTSTR(_T("好久没看见他了，真是 long time no see")));
                                     }   

            }                break;
            }
        }
    }