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using
System;using
System.Collections.Generic;using
System.ComponentModel;using
System.Data;using
System.Drawing;using
System.Linq;using
System.Text;using
System.Windows.Forms;using
System.Threading;using
SpeechLib;//NET2.0 引用 Speech sdk 5.1 在COM选项卡里面的Microsoft Speech object library引用 已经有11.0版本using
System.Speech;using
System.Speech.Recognition;using
System.Speech.Synthesis;namespace
Speech{ /// <summary> /// 20140427 /// 涂聚文 /// /// </summary> public
partial class Form1 : Form { private
enum State { Idle = 0, Accepting = 1, Off = 2, } private
State RecogState = State.Off; private
SpeechRecognitionEngine recognizer; private
SpeechSynthesizer synthesizer = null; private
int Hypothesized = 0; private
int Recognized = 0; /// <summary> /// /// </summary> public
Form1() { InitializeComponent(); } /// <summary> /// /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private
void Form1_Load(object
sender, EventArgs e) { // SpVoice voice = new SpVoice();//SAPI 5.4 //SpeechLib.ISpeechObjectTokens obj = voice.GetVoices(string.Empty, string.Empty); //int count = obj.Count;//获取语音库总数 //bool result = false; //for (int i = 0; i < count; i++) //{ // string desc = obj.Item(i).GetDescription(i);//.GetDescription(); //遍历语音库 // comboBox1.Items.Add(desc); //} //SpVoiceClass voice = new SpVoiceClass();//SAPI 5.1 ////voice.Voice = voice.GetVoices(string.Empty, string.Empty).Item(0); ////voice.Speak("你要说的话",SpeechVoiceSpeakFlags.SVSFlagsAsync); //SpVoice voice1 = new SpVoice();//SAPI 5.4 //voice1.Volume = 100;//音量 //voice1.Voice = voice1.GetVoices(string.Empty, string.Empty).Item(0); //voice1.Rate = 2;//速度语音朗读速度 // voice1.Speak("你要说的话", SpeechVoiceSpeakFlags.SVSFlagsAsync); //voice1.Speak("speech sdk 5.1", SpeechVoiceSpeakFlags.SVSFlagsAsync); //SpeechSynthesizer syn = new SpeechSynthesizer(); //syn.SelectVoice("Microsoft Lili"); //initialize recognizer and synthesizer InitializeRecognizerSynthesizer(); //if input device found then proceed if
(SelectInputDevice()) { LoadDictationGrammar(); ReadAloud("中华人民共和国"); //中文方式Speech Engine Ready for Input } } /// <summary> /// 中文 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private
void button1_Click(object
sender, EventArgs e) { SpVoiceClass voice = new
SpVoiceClass(); voice.Voice = voice.GetVoices(string.Empty, string.Empty).Item(0); //0，为系统默认,中文 voice.Speak(this.textBox1.Text.Trim(), SpeechVoiceSpeakFlags.SVSFlagsAsync); } /// <summary> /// 英文 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private
void button2_Click(object
sender, EventArgs e) { SpVoiceClass voice = new
SpVoiceClass(); voice.Voice = voice.GetVoices(string.Empty, string.Empty).Item(1);// voice.Speak(this.textBox2.Text.Trim(), SpeechVoiceSpeakFlags.SVSFlagsAsync); } /// <summary> /// 输入中文语音输出中文文字 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private
void button3_Click(object
sender, EventArgs e) { switch
(RecogState) { case
State.Off: RecogState = State.Accepting; button3.Text = "Stop"; recognizer.RecognizeAsync(RecognizeMode.Multiple); break; case
State.Accepting: RecogState = State.Off; button3.Text = "Start"; recognizer.RecognizeAsyncStop(); break; } } /// <summary> /// pause recognition and speak the text sent /// </summary> /// <param name="speakText"></param> public
void ReadAloud(string
speakText) { try { recognizer.RecognizeAsyncCancel(); synthesizer.SpeakAsync(speakText); } catch
{ } } /// <summary> /// initialize recognizer and synthesizer along with their events /// /// </summary> private
void InitializeRecognizerSynthesizer() { var
selectedRecognizer = (from
e in
SpeechRecognitionEngine.InstalledRecognizers() where
e.Culture.Equals(Thread.CurrentThread.CurrentCulture) select
e).FirstOrDefault(); recognizer = new
SpeechRecognitionEngine(selectedRecognizer); recognizer.AudioStateChanged += new
EventHandler<AudioStateChangedEventArgs>(recognizer_AudioStateChanged); recognizer.SpeechHypothesized += new
EventHandler<SpeechHypothesizedEventArgs>(recognizer_SpeechHypothesized); recognizer.SpeechRecognized += new
EventHandler<SpeechRecognizedEventArgs>(recognizer_SpeechRecognized); synthesizer = new
SpeechSynthesizer(); } #region Recognizer events private
void recognizer_AudioStateChanged(object
sender, AudioStateChangedEventArgs e) { switch
(e.AudioState) { case
AudioState.Speech: LabelStatus.Text = "Listening"; break; case
AudioState.Silence: LabelStatus.Text = "Idle"; break; case
AudioState.Stopped: LabelStatus.Text = "Stopped"; break; } } /// <summary> /// /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private
void recognizer_SpeechHypothesized(object
sender, SpeechHypothesizedEventArgs e) { Hypothesized++; LabelHypothesized.Text = "Hypothesized: "
+ Hypothesized.ToString(); } /// <summary> /// /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private
void recognizer_SpeechRecognized(object
sender, SpeechRecognizedEventArgs e) { Recognized++; string
s = "Recognized: "
+ Recognized.ToString(); if
(RecogState == State.Off) return; float
accuracy = (float)e.Result.Confidence; string
phrase = e.Result.Text; { if
(phrase == "End Dictate") { RecogState = State.Off; recognizer.RecognizeAsyncStop(); ReadAloud("Dictation Ended"); return; } textBox1.AppendText(" "
+ e.Result.Text); } } #endregion /// <summary> /// select input device if available /// </summary> /// <returns></returns> private
bool SelectInputDevice() { bool
proceedLoading = true; //if OS is above XP if
(IsOscompatible()) { try { recognizer.SetInputToDefaultAudioDevice(); } catch { proceedLoading = false; //no audio input device } } //if OS is XP or below else ThreadPool.QueueUserWorkItem(InitSpeechRecogniser); return
proceedLoading; } /// <summary> /// Findout if OS is compatible. /// </summary> /// <returns>true if greater than XP otherwise false</returns> private
bool IsOscompatible() { OperatingSystem osInfo = Environment.OSVersion; if
(osInfo.Version > new
Version("6.0")) return
true; else return
false; } /// <summary> /// /// </summary> /// <param name="o"></param> private
void InitSpeechRecogniser(object
o) { recognizer.SetInputToDefaultAudioDevice(); } /// <summary> /// Load grammars, one for command and other for dictation /// </summary> private
void LoadDictationGrammar() { GrammarBuilder grammarBuilder = new
GrammarBuilder(); grammarBuilder.Append(new
Choices("End Dictate")); Grammar commandGrammar = new
Grammar(grammarBuilder); commandGrammar.Name = "main command grammar"; recognizer.LoadGrammar(commandGrammar); DictationGrammar dictationGrammar = new
DictationGrammar(); dictationGrammar.Name = "dictation"; recognizer.LoadGrammar(dictationGrammar); } }} |
Csharp: speech to text, text to speech in win,布布扣,bubuko.com
Csharp: speech to text, text to speech in win
原文：http://www.cnblogs.com/geovindu/p/3694910.html