一个基于speech API5.1的通用语音识别类

来源：互联网发布：小鬼斩数据编辑：程序博客网时间：2024/04/29 21:18

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using SpeechLib;
using System.Windows.Forms;

namespace yincheng01@163.com
{
public class SpRecognition
{

        public SpeechLib.ISpeechRecoGrammar isrg;
        public SpeechLib.SpSharedRecoContextClass ssrContex = null;
        public System.Windows.Forms.Control cDisplay;
        public SpRecognition(string[] gh)  //加载关键词
        {
            ssrContex = new SpSharedRecoContextClass();
            isrg = ssrContex.CreateGrammar(0);
            SpeechLib._ISpeechRecoContextEvents_RecognitionEventHandler recHandle =
            new _ISpeechRecoContextEvents_RecognitionEventHandler(ContexRecognition);
            ssrContex.Recognition += recHandle;
          SpeechLib.ISpeechGrammarRule menuRule = isrg.Rules.Add("123", SpeechRuleAttributes.SRATopLevel | SpeechRuleAttributes.SRADynamic, 1);
           object PropValue = "";

           foreach (string ff in gh)
            {
            menuRule.InitialState.AddWordTransition(null, ff, " ", SpeechGrammarWordType.SGLexical, ff, 1, ref PropValue, 1.0F);

}

isrg.Rules.Commit();

isrg.CmdSetRuleState("123", SpeechRuleState.SGDSActive);

isrg.DictationLoad("", SpeechLoadOption.SLOStatic);
isrg.DictationSetState(SpeechRuleState.SGDSActive);

        }
        public void BeginRec(Control tbResult)
        {

cDisplay = tbResult;

}

        public void CloseRec()
        {


            ssrContex = null;
            cDisplay = null;

        }
        private void ContexRecognition(int iIndex, object obj, SpeechLib.SpeechRecognitionType type, SpeechLib.ISpeechRecoResult result)
        {
            cDisplay.Text = result.PhraseInfo.GetText(0, -1, true);
        }

}
}
类的调用

SpRecognition ff;

   string[] dd={"尹成","华东","玉辉","};
            ff = new SpRecognition(dd);
            ff.BeginRec(richTextBox1);

ff.CloseRec();