语音识别WAV To String

由于项目需要在网上找了好多，修改下，下面是个样例，大家看下

using System;
using System.Collections.Generic;
using System.Text;
using DotNetSpeech;
using System.Threading;

namespace TestSpRecognize
{
    class Program
    {
        static void Main(string[] args)
        {
            WavToCaption obj = new WavToCaption();
            obj.openWAV();
        }
    }
    class WavToCaption
    {
        private SpInProcRecoContext m_wavRecoContext;
        private ISpeechRecoGrammar m_Grammar;
        private SpFileStream m_infile;

        public WavToCaption()
        {
            SpInprocRecognizer recognizer = new SpInprocRecognizer();
            m_wavRecoContext = (SpInProcRecoContext)recognizer.CreateRecoContext();
            m_wavRecoContext.RetainedAudio = SpeechRetainedAudioOptions.SRAORetainAudio;
            m_infile = new SpFileStreamClass();
            m_infile.Format.GetWaveFormatEx();
        }

        public void openWAV()
        {
            m_Grammar = m_wavRecoContext.CreateGrammar(0);
            m_Grammar.DictationLoad("", SpeechLoadOption.SLOStatic);

            //register an event handler everytime the engine recognizes something from teh file
            m_wavRecoContext.Recognition += new _ISpeechRecoContextEvents_RecognitionEventHandler(RecoContext_Recognition);


            //register an event handler when the engine is done reading the  file
            m_wavRecoContext.EndStream += new _ISpeechRecoContextEvents_EndStreamEventHandler(RecoContext_EndRecognition);

            //try to open the file
            try
            {
                m_infile.Open(@"c:\1.wav",
                SpeechStreamFileMode.SSFMOpenForRead, false);
                Console.Out.WriteLine("Succesfully opened file");
            }
            catch (Exception e)
            {
                Console.Out.Write("Could not find file");
                return;
            }

            //this makes it so the engine recognizes we're reading in from a  wav, vs. a microphone
            m_wavRecoContext.Recognizer.AudioInputStream = m_infile;

            //starts reading the file here
            m_Grammar.DictationSetState(SpeechRuleState.SGDSActive);
            Console.ReadKey();

        }

        void RecoContext_Recognition(int StreamNumber, object StreamPosition, SpeechRecognitionType RecognitionType, ISpeechRecoResult Result)
        {
            //Result.PhraseInfo.GetText(0, -1, true);
            Console.Out.Write("recognized something");
            Console.ReadKey();
        }

        void RecoContext_EndRecognition(int StreamNumber, object StreamPosition, bool f)
        {
            m_infile.Close();
            m_Grammar.DictationSetState(SpeechRuleState.SGDSInactive);

        }


    }

这个是测试可用的