码迷,mamicode.com
首页 > Windows程序 > 详细

Csharp: speech to text, text to speech in win

时间:2014-04-28 04:36:58      阅读:1052      评论:0      收藏:0      [点我收藏+]

标签:des   com   class   blog   code   div   size   tar   string   ext   art   

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
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

标签:des   com   class   blog   code   div   size   tar   string   ext   art   

原文地址:http://www.cnblogs.com/geovindu/p/3694910.html

(0)
(0)
   
举报
评论 一句话评论(0
登录后才能评论!
© 2014 mamicode.com 版权所有
迷上了代码!