Microsoftspeech語(yǔ)音技術(shù)概述.doc

Microsoft speech語(yǔ)音技術(shù)概述Microsoft Speech SDK提供關(guān)于語(yǔ)音處理的一套應(yīng)用程序編程接口SAPI（Speech Application Programming Interface）。SAPI提供了實(shí)現(xiàn)文字-語(yǔ)音轉(zhuǎn)換（Text-to-Speech）和語(yǔ)音識(shí)別（Speech Recognition）程序的基本函數(shù)。 Speech SDK是以COM接口的方式提供服務(wù)的。Speech Recognition：語(yǔ)音識(shí)別編程涉及IsRecognizer,IsRecoContest/和IspRecoGrammar等多個(gè)語(yǔ)音識(shí)別引擎接口。類中定義3個(gè)借口指針m_cpReconEngine,m_cpRecoCtext和m_cpDictationGrammer,分別用于引用語(yǔ)音識(shí)別引擎的三個(gè)重要的接口IspRecognizer,IspRecoContext和IspRecoGrammar。初始化函數(shù)Initialize設(shè)定了語(yǔ)音識(shí)別的基本工作環(huán)境。包括引擎，識(shí)別上下文，語(yǔ)法，音頻和時(shí)間等的初始化。釋放函數(shù)Destroy被類的析構(gòu)函數(shù)調(diào)用，釋放了類所引用的所有接口。函數(shù)Start和Stop用來(lái)控制開(kāi)始和停止接受及識(shí)別語(yǔ)音。它們通過(guò)引擎接口SetRecoState方法實(shí)現(xiàn)函。函數(shù)GetText是獲取從語(yǔ)音中已識(shí)別出的文字的關(guān)鍵，應(yīng)該在響應(yīng)識(shí)別引擎事件/消息的響應(yīng)函數(shù)中調(diào)用。首先聲明一下，以下代碼不是本人自己所寫(xiě)，也是好不容易搜到一些資料，給大家分享一下，幫助那些急需要這些資料的朋友們，希望那位前輩不要介意。在相應(yīng)的頭文件里加上這些數(shù)據(jù)：#include #define GID_DICTATION 0 / Dictation grammar has grammar ID 0#define GID_CMD_GR 33333#define WM_RECOEVENT WM_USER+1在定義的類里添加以下方法和數(shù)據(jù)：void RecoEvent();void InitSR();BOOL b_initSR; /Have init the SR engine?BOOL b_Dic_Grammar; /is the Dic Grammar active?BOOL b_Cmd_Grammar; /is the Cmd Grammar active?BOOL m_bInSound;BOOL m_bGotReco;CComPtr m_cpRecoCtxt;CComPtr m_cpDictationGrammar;CComPtr m_cpCmdGrammar;CComPtr cpRecoEngine;CString m_inputv;/以下是響應(yīng)函數(shù)：afx_msg void OnStartText();afx_msg void OnStartCMD();在類的實(shí)現(xiàn)里要寫(xiě)以下數(shù)據(jù)：m_inputv = _T();InitSR() /SR Initm_bGotReco=FALSE;m_bInSound=FALSE;HRESULT hr = S_OK; hr = cpRecoEngine.CoCreateInstance(CLSID_SpInprocRecognizer);/創(chuàng)建識(shí)別引擎COM實(shí)例 if( SUCCEEDED( hr ) )hr = cpRecoEngine-CreateRecoContext( &m_cpRecoCtxt ); /創(chuàng)建識(shí)別上下文對(duì)象elseMessageBox(error1);/ Set recognition notification for dictationif (SUCCEEDED(hr)hr = m_cpRecoCtxt-SetNotifyWindowMessage( m_hWnd, WM_RECOEVENT, 0, 0 );/設(shè)置消息機(jī)制elseMessageBox(error2);if (SUCCEEDED(hr)const ULONGLONG ullInterest = SPFEI(SPEI_RECOGNITION); /我們關(guān)心的事件hr = m_cpRecoCtxt-SetInterest(ullInterest, ullInterest);elseMessageBox(error3);/ create default audio objectCComPtr cpAudio;hr = SpCreateDefaultObjectFromCategoryId(SPCAT_AUDIOIN, &cpAudio);/建立默認(rèn)的音頻輸入對(duì)象/設(shè)置識(shí)別引擎輸入源hr = cpRecoEngine-SetInput(cpAudio, TRUE);b_initSR = TRUE;/創(chuàng)建聽(tīng)寫(xiě)模式的語(yǔ)法對(duì)象hr = m_cpRecoCtxt-CreateGrammar( GID_DICTATION, &m_cpDictationGrammar );if (SUCCEEDED(hr)/加載詞典hr = m_cpDictationGrammar-LoadDictation(NULL, SPLO_STATIC);elseMessageBox(error4);if (FAILED(hr)m_cpDictationGrammar.Release();MessageBox(start SR error);/創(chuàng)建命令模式的語(yǔ)法對(duì)象hr = m_cpRecoCtxt-CreateGrammar( GID_CMD_GR, &m_cpCmdGrammar);if( FAILED(hr) )MessageBox(Error CreateGrammar,Error,MB_OK); WCHAR wszXMLFile20=L;/ANSI轉(zhuǎn)UNINCODEMultiByteToWideChar(CP_ACP, 0, (LPCSTR)CmdCtrl.xml , -1, wszXMLFile, 256);/