前奏，浑浑噩噩已经工作一年多，这一年多收获还是挺多的。逛园子应该有两年多了，工作后基本上是天天都会来园子逛逛，园子 里还是有很多牛人写了一些不错的博客，帮我解决很多问题。但是一直没写过博客，归根到底一个字“懒”，还有就是不知道该写 些什么...
今天把我最近研究讯飞语音东东，分享一下，不过有些还是前辈们提供的。之前公司让我做一个小的语音识别功能，一开始我就建议使用讯飞语音，个人觉得讯飞识别正确率还是可观的。可是老总说不能考 虑联网，还有就是钱的问题。想到微软自带语音识别引擎（基于win7）。第一次接触到语音识别，没什么头绪，只有收集相关资料 。最后成品出来了，但是识别效果不是那么满意，老总说那就将就用吧，我想他都那样说了，我也没多大意见...开年后老总老总 买了个iphone5玩了siri后，觉得我们现在那个语音太丑陋了，让换一个解决方案，识别率要达到90%。国内有好几家公司做语音识 别的比如科大讯飞、云知声、捷通华声以及紫冬锐意语音都做了一定开放。市面上我知道语音助手有百度语音助手、虫洞语音助手 、360语音助手以及科大讯飞语点；前两个我不知道采用那家公司的还是自己研发的不过都没开开放，360语音助手采用讯飞的。然 后我就继续提议使用讯飞语音SDK，于是乎同事们都下载讯飞语点来玩玩，老总说那就试试讯飞语音SDK。
先做一个简单demo，看看识别效果，感觉识别率上能够满足要求。一般要的结果不光只是要把所说的话翻译成文字，而是需要的是 语义的理解:例如我要去北京，直接返回北京这个关键。目前讯飞还没把这个接口开放出来，公司负责人说今年会把这个开放出来 。那现在只能使用关键词识别语法，一种是直接是文本词库；另一种是ABNF语法。ABNF写法有点烦杂（语法文件里使用到的词句都是指定的，对于无法枚举的词句暂时没有很好的解决办法。），就直接采用文本词库（因为关键词有点多）。讯飞还有专门人负责关于讯飞语音问题解答（QQ群：153789256）。
讯飞提供msc.dll这个DLL，调用DLL的封装：
/// <summary>
/// MSCDLL入口封装
/// </summary>
private class MscDll
{
#region MscDLL
/// <summary>
/// 初始化MSC的ISR部分
/// </summary>
/// <param name="configs">初始化时传入的字符串，以指定合成用到的一些配置参数，各个参数以“参数名=参数值”的形式出现，大小写不敏感，不同的参数之间以“,”或“\n”隔开，不设置任何值时可以传入NULL或空串：</param>
/// <returns>如果函数调用成功返回MSP_SUCCESS，否则返回错误代码，错误代码参见msp_errors</returns>
[DllImport("msc.dll", CallingConvention = CallingConvention.StdCall)]
public static extern int QISRInit(string configs);
/// <summary>
/// 开始一个ISR会话
/// </summary>
/// <param name="grammarList">uri-list格式的语法，可以是一个语法文件的URL或者一个引擎内置语法列表。可以同时指定多个语法，不同的语法之间以“,”
/// 隔开。进行语音听写时不需要语法，此参数设定为NULL或空串即可；进行语音识别时则需要语法，语法可以在此参数中指定，也可以随后调用QISRGrammarActivate指定识别所用的语法。</param>
/// <param name="_params">本路ISR会话使用的参数，可设置的参数及其取值范围请参考《可设置参数列表_MSP20.xls》，各个参数以“参数名=参数值” 的形式出现，不同的参数之间以“,”或者“\n”隔开。</param>
/// <param name="errorCode">如果函数调用成功则其值为MSP_SUCCESS，否则返回错误代码，错误代码参见msp_errors。几个主要的返回值： MSP_ERROR_NOT_INIT 未初始化 MSP_ERROR_INVALID_PARA 无效的参数; MSP_ERROR_NO_LICENSE 开始一路会话失败</param>
/// <returns>MSC为本路会话建立的ID，用来唯一的标识本路会话，供以后调用其他函数时使用。函数调用失败则会返回NULL。</returns>
[DllImport("msc.dll", CallingConvention = CallingConvention.StdCall)]
public static extern IntPtr QISRSessionBegin(string grammarList, string _params, ref int errorCode);
/// <summary>
/// 传入语法
/// </summary>
/// <param name="sessionID">由QISRSessionBegin返回过来的会话ID</param>
/// <param name="grammar">语法字符串</param>
/// <param name="type">语法类型，可以是uri-list、abnf、xml等</param>
/// <param name="weight">本次传入语法的权重，本参数在MSP 2.0中会被忽略。</param>
/// <returns>如果函数调用成功返回MSP_SUCCESS，否则返回错误代码，错误代码参见msp_errors</returns>
[DllImport("msc.dll", CallingConvention = CallingConvention.StdCall)]
public static extern int QISRGrammarActivate(string sessionID, string grammar, string type, int weight);
/// <summary>
/// 写入用来识别的语音
/// </summary>
/// <param name="sessionID">由QISRSessionBegin返回过来的会话ID</param>
/// <param name="waveData">音频数据缓冲区起始地址</param>
/// <param name="waveLen">音频数据长度，其大小不能超过设定的max_audio_size</param>
/// <param name="audioStatus">用来指明用户本次识别的音频是否发送完毕，可能值如下：
/// MSP_AUDIO_SAMPLE_FIRST = 1 第一块音频
/// MSP_AUDIO_SAMPLE_CONTINUE = 2 还有后继音频
/// MSP_AUDIO_SAMPLE_LAST = 4 最后一块音频</param>
/// <param name="epStatus">端点检测（End-point detected）器所处的状态，可能的值如下:
/// MSP _EP_LOOKING_FOR_SPEECH = 0 还没有检测到音频的前端点。
/// MSP _EP_IN_SPEECH = 1 已经检测到了音频前端点，正在进行正常的音频处理。
/// MSP _EP_AFTER_SPEECH = 3 检测到音频的后端点，后继的音频会被MSC忽略。
/// MSP _EP_TIMEOUT = 4 超时。
/// MSP _EP_ERROR= 5 出现错误。
/// MSP _EP_MAX_SPEECH = 6 音频过大。</param>
/// <param name="recogStatus">识别器所处的状态</param>
/// <returns></returns>
[DllImport("msc.dll", CallingConvention = CallingConvention.StdCall)]
public static extern int QISRAudioWrite(string sessionID, byte[] waveData, uint waveLen, AudioStatus audioStatus, ref EpStatus epStatus, ref RecogStatus recogStatus);
/// <summary>
/// 获取识别结果
/// </summary>
/// <param name="sessionID">由QISRSessionBegin返回过来的会话ID</param>
/// <param name="rsltStatus">识别结果的状态，其取值范围和含义请参考QISRAudioWrite的参数recogStatus</param>
/// <param name="waitTime">与服务器交互的间隔时间，可以控制和服务器的交互频度。单位为ms，建议取值为5000</param>
/// <param name="errorCode">如果函数调用成功返回MSP_SUCCESS，否则返回错误代码，错误代码参见msp_errors</param>
/// <returns>函数执行成功并且获取到识别结果时返回识别结果，函数执行成功没有获取到识别结果时返回NULL</returns>
[DllImport("msc.dll", CallingConvention = CallingConvention.StdCall)]
public static extern IntPtr QISRGetResult(string sessionID, ref RecogStatus rsltStatus, int waitTime, ref int errorCode);
/// <summary>
/// 结束一路会话
/// </summary>
/// <param name="sessionID">由QISRSessionBegin返回过来的会话ID</param>
/// <param name="hints">结束本次会话的原因描述，用于记录日志，便于用户查阅或者跟踪某些问题</param>
/// <returns></returns>
[DllImport("msc.dll", CallingConvention = CallingConvention.StdCall)]
public static extern int QISRSessionEnd(string sessionID, string hints);
/// <summary>
/// 获取与识别交互相关的参数
/// </summary>
/// <param name="sessionID">由QISRSessionBegin返回过来的会话ID</param>
/// <param name="paramName">要获取的参数名称；支持同时查询多个参数，查询多个参数时，参数名称按“,” 或“\n”分隔开来</param>
/// <param name="paramValue">获取的参数值，以字符串形式返回；查询多个参数时，参数值之间以“;”分开，不支持的参数将返回空的值</param>
/// <param name="valueLen">参数值的长度</param>
/// <returns></returns>
[DllImport("msc.dll", CallingConvention = CallingConvention.StdCall)]
public static extern int QISRGetParam(string sessionID, string paramName, string paramValue, ref uint valueLen);
/// <summary>
/// 逆初始化MSC的ISR部分
/// </summary>
/// <returns></returns>
[DllImport("msc.dll", CallingConvention = CallingConvention.StdCall)]
public static extern int QISRFini();
/// <summary>
/// 上传用户自定义词库
/// </summary>
/// <param name="sessionID">由QISRSessionBegin返回过来的会话ID</param>
/// <param name="dataName">词库名称</param>
/// <param name="userData">词库数据采用是utf8格式</param>
/// <param name="lenght">词库大小</param>
/// <param name="paramValue">参数值</param>
/// <param name="errorCode">如果函数调用成功返回MSP_SUCCESS，否则返回错误代码，错误代码参见msp_errors</param>
/// <returns>函数执行成功并且返回exID（词库编号)</returns>
[DllImport("msc.dll", CallingConvention = CallingConvention.StdCall)]
public static extern IntPtr QISRUploadData(string sessionID, string dataName, byte[] userData, uint lenght, string paramValue, ref int errorCode);
#endregion
}
说明一下：“QISRUploadData”（上传词库）这个函数在开发文档里面没的，讯飞遗漏了。
具体实现(关键词识别，文本词库)：
类：MscNet
View Code
1 #region 定义字段
2
3 //返回错误代号
4 private int ret = 0;
5 private RecoErrors Re = null;
6 /// <summary>
7 /// 会话ID
8 /// </summary>
9 private string sess_id = null;
10 /// <summary>
11 /// 参数
12 /// </summary>
13 private string param = null;
14 /// <summary>
15 /// 语法
16 /// </summary>
17 private string grammar = null;
18 //错误消息通知托管
19 public delegate void delegdateOnerror(string Msg);
20 private string path = null;
21 /// <summary>
22 /// 识别数据返回的事件
23 /// </summary>
24 public event EventHandler<DataArrivedEventArgs> DataArrived;
25 /// <summary>
26 /// 识别过程结束的事件
27 /// </summary>
28 public event EventHandler ISREnd;
29 /// <summary>
30 /// 正在识别
31 /// </summary>
32 public event EventHandler Spoting;
33
34 #endregion
35
36 #region 构造函数
37
38 /// <summary>
39 /// 构造函数，初始化引擎
40 /// </summary>
41 /// <param name="appid">appid</param>
42 /// <param name="param">参数</param>
43 /// <param name="grammar">语法ID</param>
44 /// <param name="path">路径</param>
45 public MscNet(string appid, string param, string path, string grammar)
46 {
47 this.path = path;
48 this.param = param;
49 this.grammar = grammar;
50 Re = new RecoErrors();
51 //引擎初始化，只需初始化一次
52 ret = MscDll.QISRInit("appid=" + appid);
53 try
54 {
55 Re.GetError(ret);
56 }
57 catch (MscException ex)
58 {
59 RaiseError(ex.Message.ToString());
60 }
61 }
62 #endregion
63
64 #region 公共方法
65
66 /// <summary>
67 /// 开始识别语音
68 /// </summary>
69 /// <param name="buffer">音频数据</param>
70 public void InterpretVoice(byte[] buffer)
71 {
72 //用来指明用户本次识别的音频是否发送完毕
73 AudioStatus audioStatus = AudioStatus.ISR_AUDIO_SAMPLE_LAST;
74 //端点检测（End-point detected）器所处的状态
75 EpStatus ep_status = EpStatus.ISR_EP_NULL;
76 //识别器所处的状态
77 RecogStatus rec_status = RecogStatus.ISR_REC_NULL;
78 //识别结果的状态
79 RecogStatus rslt_status = RecogStatus.ISR_REC_NULL;
80 Loadgrammar();
81 int ret = MscDll.QISRAudioWrite(sess_id, buffer, (uint)buffer.Length, audioStatus, ref ep_status, ref rec_status);
82 try
83 {
84 Re.GetError(ret);
85 do
86 {
87 if (rslt_status == RecogStatus.ISR_REC_STATUS_INCOMPLETE)
88 {
89 Spoting(this, new EventArgs());//通知正在识别
90 }
91 IntPtr p = MscDll.QISRGetResult(sess_id, ref rslt_status, 0, ref ret);
92 Re.GetError(ret);
93 if (p != IntPtr.Zero)
94 {
95 string tmp = PtrToStr(p);
96 DataArrived(this, new DataArrivedEventArgs(tmp));//激发识别数据到达事件
97 }
98 System.Threading.Thread.Sleep(500);
99 } while (rslt_status != RecogStatus.ISR_REC_STATUS_SPEECH_COMPLETE);
100 }
101 catch (MscException ex)
102 {
103 RaiseError(ex.Message);
104 }
105 finally
106 {
107 try
108 {
109 ret = MscDll.QISRSessionEnd(sess_id, string.Empty);
110 Re.GetError(ret);
111 ISREnd(this, new EventArgs());//通知识别结束
112 }
113 catch (MscException ex)
114 {
115 RaiseError(ex.Message);
116 }
117 }
118 }
119
120 /// <summary>
121 /// 上传词库词库采用是utf8格式
122 /// </summary>
123 /// <param name="txtFile">词库名称</param>
124 /// <param name="path">词库路径</param>
125 /// <param name="param">参数</param>
126 /// <returns>返回词库编号</returns>
127 public string GetExID(string txtFile, string path, string param)
128 {
129 string filePath = Path.Combine(path, txtFile);
130 string tmp = string.Empty;
131 if (!string.IsNullOrEmpty(filePath))
132 {
133 try
134 {
135 sess_id = PtrToStr(MscDll.QISRSessionBegin(null, param, ref ret));
136 Re.GetError(ret);
137 try
138 {
139 using (FileStream fs = File.Open(filePath, FileMode.Open))
140 {
141 long len = fs.Length;
142 byte[] buffer = new byte[len];
143 fs.Read(buffer, 0, (int)len);
144 IntPtr p = MscDll.QISRUploadData(sess_id, "sces", buffer, (uint)fs.Length, "dtt=keylist", ref ret);
145 Re.GetError(ret);
146 if (p != IntPtr.Zero)
147 {
148 tmp = PtrToStr(p);
149 }
150 }
151 }
152 catch (FileNotFoundException ex)
153 {
154 RaiseError(ex.Message);
155 }
156
157 }
158 catch (MscException ex)
159 {
160 RaiseError(ex.Message);
161 }
162 finally
163 {
164 try
165 {
166 ret = MscDll.QISRSessionEnd(sess_id, null);
167 Re.GetError(ret);
168 }
169 catch (MscException ex)
170 {
171 RaiseError(ex.Message.ToString());
172 }
173 }
174 }
175 else
176 {
177 RaiseError("路径不正确！");
178 }
179 return tmp;
180 }
181
182 /// <summary>
183 /// 对MSC的ISR部分进行逆初始化。
184 /// </summary>
185 public void QISRFini()
186 {
187 try
188 {
189 ret = MscDll.QISRFini();
190 Re.GetError(ret);
191 }
192 catch (MscException ex)
193 {
194 RaiseError(ex.Message.ToString());
195 }
196 }
197
198 #endregion
199
200 #region 受保护方法
201 /// <summary>
202 /// 加载语法
203 /// </summary>
204 private void Loadgrammar()
205 {
206 try
207 {
208 sess_id = PtrToStr(MscDll.QISRSessionBegin(grammar, param, ref ret));
209 Re.GetError(ret);
210 }
211 catch (MscException ex)
212 {
213 RaiseError(ex.Message);
214 }
215 }
216
217 /// <summary>
218 /// 指针转字符串
219 /// </summary>
220 /// <param name="p">指向非托管代码字符串的指针</param>
221 /// <returns>返回指针指向的字符串</returns>
222 private string PtrToStr(IntPtr p)
223 {
224 List<byte> lb = new List<byte>();
225 try
226 {
227 while (Marshal.ReadByte(p) != 0)
228 {
229 lb.Add(Marshal.ReadByte(p));
230 p = p + 1;
231 }
232 }
233 catch (AccessViolationException ex)
234 {
235 RaiseError(ex.Message);
236 }
237 return Encoding.Default.GetString(lb.ToArray());
238 }
239 #endregion
240
241 #region 事件
242 /// <summary>
243 /// 错误通知事件
244 /// </summary>
245 public event delegdateOnerror OnError;
246 private void RaiseError(string Msg)
247 {
248 if (OnError != null)
249 {
250 OnError(Msg);
251 }
252 }
253 /// <summary>
254 /// 有识别数据返回的事件参数，包含了识别的文本结果
255 /// </summary>
256 public class DataArrivedEventArgs : EventArgs
257 {
258 public string result;
259 public DataArrivedEventArgs(string rs)
260 {
261 result = rs;
262 }
263 }
264 #endregion
如果采用ABNF语法，只是与文本词库加载语法方式有点不一样：
View Code
1 /// <summary>
2 /// 加载语法
3 /// </summary>
4 private void Loadgrammar()
5 {
6 try
7 {
8
9 //sess_id = PtrToStr(MscDll.QISRSessionBegin(grammar, param, ref ret));
10 /*ABNF语法*/
11 sess_id = PtrToStr(MscDll.QISRSessionBegin(null, "rst=plain,sub=asr,ssm=1,aue=speex,auf=audio/L16;rate=16000,cfd=350", ref ret));
12 em.GetError(ret);
13 string grammar1 = "#ABNF 1.0 GB2312;\n mode voice;\n language zh-cn;\n\n\n root $main;\n public $main = 我[想要]看$place1;\n $place1=足球;\n";
14 ret = MscDll.QISRGrammarActivate(sess_id, grammar1, "abnf", 0);//将语法ID传入QISRSessionBegin
15 /*end */
16 em.GetError(ret);
17 }
18 catch (MscException ex)
19 {
20 RaiseError(ex.Message.ToString());
21 }
22 }
常量的枚举：
View Code
1 #region 错误代号
2 enum ErrorCode
3 {
4 MSP_SUCCESS= 0,
5 MSP_ERROR_FAIL = -1,
6 MSP_ERROR_EXCEPTION = -2,
7
8 /* General errors 10100(0x2774) */
9 MSP_ERROR_GENERAL = 10100, /* 0x2774 */
10 MSP_ERROR_OUT_OF_MEMORY = 10101, /* 0x2775 */
11 MSP_ERROR_FILE_NOT_FOUND = 10102, /* 0x2776 */
12 MSP_ERROR_NOT_SUPPORT = 10103, /* 0x2777 */
13 MSP_ERROR_NOT_IMPLEMENT = 10104, /* 0x2778 */
14 MSP_ERROR_ACCESS = 10105, /* 0x2779 */
15 MSP_ERROR_INVALID_PARA = 10106, /* 0x277A */
16 MSP_ERROR_INVALID_PARA_VALUE = 10107, /* 0x277B */
17 MSP_ERROR_INVALID_HANDLE = 10108, /* 0x277C */
18 MSP_ERROR_INVALID_DATA = 10109, /* 0x277D */
19 MSP_ERROR_NO_LICENSE = 10110, /* 0x277E */
20 MSP_ERROR_NOT_INIT = 10111, /* 0x277F */
21 MSP_ERROR_NULL_HANDLE = 10112, /* 0x2780 */
22 MSP_ERROR_OVERFLOW = 10113, /* 0x2781 */
23 MSP_ERROR_TIME_OUT = 10114, /* 0x2782 */
24 MSP_ERROR_OPEN_FILE = 10115, /* 0x2783 */
25 MSP_ERROR_NOT_FOUND = 10116, /* 0x2784 */
26 MSP_ERROR_NO_ENOUGH_BUFFER = 10117, /* 0x2785 */
27 MSP_ERROR_NO_DATA = 10118, /* 0x2786 */
28 MSP_ERROR_NO_MORE_DATA = 10119, /* 0x2787 */
29 MSP_ERROR_SKIPPED = 10120, /* 0x2788 */
30 MSP_ERROR_ALREADY_EXIST = 10121, /* 0x2789 */
31 MSP_ERROR_LOAD_MODULE = 10122, /* 0x278A */
32 MSP_ERROR_BUSY = 10123, /* 0x278B */
33 MSP_ERROR_INVALID_CONFIG = 10124, /* 0x278C */
34 MSP_ERROR_VERSION_CHECK = 10125, /* 0x278D */
35 MSP_ERROR_CANCELED = 10126, /* 0x278E */
36 MSP_ERROR_INVALID_MEDIA_TYPE = 10127, /* 0x278F */
37 MSP_ERROR_CONFIG_INITIALIZE = 10128, /* 0x2790 */
38 MSP_ERROR_CREATE_HANDLE = 10129, /* 0x2791 */
39 MSP_ERROR_CODING_LIB_NOT_LOAD = 10130, /* 0x2792 */
40
41 /* Error codes of network 10200(0x27D8)*/
42 MSP_ERROR_NET_GENERAL = 10200, /* 0x27D8 */
43 MSP_ERROR_NET_OPENSOCK = 10201, /* 0x27D9 */ /* Open socket */
44 MSP_ERROR_NET_CONNECTSOCK = 10202, /* 0x27DA */ /* Connect socket */
45 MSP_ERROR_NET_ACCEPTSOCK = 10203, /* 0x27DB */ /* Accept socket */
46 MSP_ERROR_NET_SENDSOCK = 10204, /* 0x27DC */ /* Send socket data */
47 MSP_ERROR_NET_RECVSOCK = 10205, /* 0x27DD */ /* Recv socket data */
48 MSP_ERROR_NET_INVALIDSOCK = 10206, /* 0x27DE */ /* Invalid socket handle */
49 MSP_ERROR_NET_BADADDRESS = 10207, /* 0x27EF */ /* Bad network address */
50 MSP_ERROR_NET_BINDSEQUENCE = 10208, /* 0x27E0 */ /* Bind after listen/connect */
51 MSP_ERROR_NET_NOTOPENSOCK = 10209, /* 0x27E1 */ /* Socket is not opened */
52 MSP_ERROR_NET_NOTBIND = 10210, /* 0x27E2 */ /* Socket is not bind to an address */
53 MSP_ERROR_NET_NOTLISTEN = 10211, /* 0x27E3 */ /* Socket is not listenning */
54 MSP_ERROR_NET_CONNECTCLOSE = 10212, /* 0x27E4 */ /* The other side of connection is closed */
55 MSP_ERROR_NET_NOTDGRAMSOCK = 10213, /* 0x27E5 */ /* The socket is not datagram type */
56 MSP_ERROR_NET_DNS=10214,
57 /* Error codes of mssp message 10300(0x283C) */
58 MSP_ERROR_MSG_GENERAL = 10300, /* 0x283C */
59 MSP_ERROR_MSG_PARSE_ERROR = 10301, /* 0x283D */
60 MSP_ERROR_MSG_BUILD_ERROR = 10302, /* 0x283E */
61 MSP_ERROR_MSG_PARAM_ERROR = 10303, /* 0x283F */
62 MSP_ERROR_MSG_CONTENT_EMPTY = 10304, /* 0x2840 */
63 MSP_ERROR_MSG_INVALID_CONTENT_TYPE = 10305, /* 0x2841 */
64 MSP_ERROR_MSG_INVALID_CONTENT_LENGTH = 10306, /* 0x2842 */
65 MSP_ERROR_MSG_INVALID_CONTENT_ENCODE = 10307, /* 0x2843 */
66 MSP_ERROR_MSG_INVALID_KEY = 10308, /* 0x2844 */
67 MSP_ERROR_MSG_KEY_EMPTY = 10309, /* 0x2845 */
68 MSP_ERROR_MSG_SESSION_ID_EMPTY = 10310, /* 0x2846 */
69 MSP_ERROR_MSG_LOGIN_ID_EMPTY = 10311, /* 0x2847 */
70 MSP_ERROR_MSG_SYNC_ID_EMPTY = 10312, /* 0x2848 */
71 MSP_ERROR_MSG_APP_ID_EMPTY = 10313, /* 0x2849 */
72 MSP_ERROR_MSG_EXTERN_ID_EMPTY = 10314, /* 0x284A */
73 MSP_ERROR_MSG_INVALID_CMD = 10315, /* 0x284B */
74 MSP_ERROR_MSG_INVALID_SUBJECT = 10316, /* 0x284C */
75 MSP_ERROR_MSG_INVALID_VERSION = 10317, /* 0x284D */
76 MSP_ERROR_MSG_NO_CMD = 10318, /* 0x284E */
77 MSP_ERROR_MSG_NO_SUBJECT = 10319, /* 0x284F */
78 MSP_ERROR_MSG_NO_VERSION = 10320, /* 0x2850 */
79 MSP_ERROR_MSG_MSSP_EMPTY = 10321, /* 0x2851 */
80 MSP_ERROR_MSG_NEW_RESPONSE = 10322, /* 0x2852 */
81 MSP_ERROR_MSG_NEW_CONTENT = 10323, /* 0x2853 */
82 MSP_ERROR_MSG_INVALID_SESSION_ID = 10324, /* 0x2854 */
83
84 /* Error codes of DataBase 10400(0x28A0)*/
85 MSP_ERROR_DB_GENERAL = 10400, /* 0x28A0 */
86 MSP_ERROR_DB_EXCEPTION = 10401, /* 0x28A1 */
87 MSP_ERROR_DB_NO_RESULT = 10402, /* 0x28A2 */
88 MSP_ERROR_DB_INVALID_USER = 10403, /* 0x28A3 */
89 MSP_ERROR_DB_INVALID_PWD = 10404, /* 0x28A4 */
90 MSP_ERROR_DB_CONNECT = 10405, /* 0x28A5 */
91 MSP_ERROR_DB_INVALID_SQL = 10406, /* 0x28A6 */
92 MSP_ERROR_DB_INVALID_APPID = 10407, /* 0x28A7 */
93
94 /* Error codes of Resource 10500(0x2904)*/
95 MSP_ERROR_RES_GENERAL = 10500, /* 0x2904 */
96 MSP_ERROR_RES_LOAD = 10501, /* 0x2905 */ /* Load resource */
97 MSP_ERROR_RES_FREE = 10502, /* 0x2906 */ /* Free resource */
98 MSP_ERROR_RES_MISSING = 10503, /* 0x2907 */ /* Resource File Missing */
99 MSP_ERROR_RES_INVALID_NAME = 10504, /* 0x2908 */ /* Invalid resource file name */
100 MSP_ERROR_RES_INVALID_ID = 10505, /* 0x2909 */ /* Invalid resource ID */
101 MSP_ERROR_RES_INVALID_IMG = 10506, /* 0x290A */ /* Invalid resource image pointer */
102 MSP_ERROR_RES_WRITE = 10507, /* 0x290B */ /* Write read-only resource */
103 MSP_ERROR_RES_LEAK = 10508, /* 0x290C */ /* Resource leak out */
104 MSP_ERROR_RES_HEAD = 10509, /* 0x290D */ /* Resource head currupt */
105 MSP_ERROR_RES_DATA = 10510, /* 0x290E */ /* Resource data currupt */
106 MSP_ERROR_RES_SKIP = 10511, /* 0x290F */ /* Resource file skipped */
107
108 /* Error codes of TTS 10600(0x2968)*/
109 MSP_ERROR_TTS_GENERAL = 10600, /* 0x2968 */
110 MSP_ERROR_TTS_TEXTEND = 10601, /* 0x2969 */ /* Meet text end */
111 MSP_ERROR_TTS_TEXT_EMPTY = 10602, /* 0x296A */ /* no synth text */
112
113 /* Error codes of Recognizer 10700(0x29CC) */
114 MSP_ERROR_REC_GENERAL = 10700, /* 0x29CC */
115 MSP_ERROR_REC_INACTIVE = 10701, /* 0x29CD */
116 MSP_ERROR_REC_GRAMMAR_ERROR = 10702, /* 0x29CE */
117 MSP_ERROR_REC_NO_ACTIVE_GRAMMARS = 10703, /* 0x29CF */
118 MSP_ERROR_REC_DUPLICATE_GRAMMAR = 10704, /* 0x29D0 */
119 MSP_ERROR_REC_INVALID_MEDIA_TYPE = 10705, /* 0x29D1 */
120 MSP_ERROR_REC_INVALID_LANGUAGE = 10706, /* 0x29D2 */
121 MSP_ERROR_REC_URI_NOT_FOUND = 10707, /* 0x29D3 */
122 MSP_ERROR_REC_URI_TIMEOUT = 10708, /* 0x29D4 */
123 MSP_ERROR_REC_URI_FETCH_ERROR = 10709, /* 0x29D5 */
124
125 /* Error codes of Speech Detector 10800(0x2A30) */
126 MSP_ERROR_EP_GENERAL = 10800, /* 0x2A30 */
127 MSP_ERROR_EP_NO_SESSION_NAME = 10801, /* 0x2A31 */
128 MSP_ERROR_EP_INACTIVE = 10802, /* 0x2A32 */
129 MSP_ERROR_EP_INITIALIZED = 10803, /* 0x2A33 */
130
131 /* Error codes of TUV */
132 MSP_ERROR_TUV_GENERAL = 10900, /* 0x2A94 */
133 MSP_ERROR_TUV_GETHIDPARAM = 10901, /* 0x2A95 */ /* Get Busin Param huanid*/
134 MSP_ERROR_TUV_TOKEN = 10902, /* 0x2A96 */ /* Get Token */
135 MSP_ERROR_TUV_CFGFILE = 10903, /* 0x2A97 */ /* Open cfg file */
136 MSP_ERROR_TUV_RECV_CONTENT = 10904, /* 0x2A98 */ /* received content is error */
137 MSP_ERROR_TUV_VERFAIL = 10905, /* 0x2A99 */ /* Verify failure */
138
139 /* Error codes of IMTV */
140 MSP_ERROR_IMTV_SUCCESS = 11000, /* 0x2AF8 */ /* 成功 */
141 MSP_ERROR_IMTV_NO_LICENSE = 11001, /* 0x2AF9 */ /* 试用次数结束，用户需要付费 */
142 MSP_ERROR_IMTV_SESSIONID_INVALID = 11002, /* 0x2AFA */ /* SessionId失效，需要重新登录通行证 */
143 MSP_ERROR_IMTV_SESSIONID_ERROR = 11003, /* 0x2AFB */ /* SessionId为空，或者非法 */
144 MSP_ERROR_IMTV_UNLOGIN = 11004, /* 0x2AFC */ /* 未登录通行证 */
145 MSP_ERROR_IMTV_SYSTEM_ERROR = 11005, /* 0x2AFD */ /* 系统错误 */
146
147 /* Error codes of HCR */
148 MSP_ERROR_HCR_GENERAL = 11100,
149 MSP_ERROR_HCR_RESOURCE_NOT_EXIST = 11101,
150
151 /* Error codes of http 12000(0x2EE0) */
152 MSP_ERROR_HTTP_BASE = 12000, /* 0x2EE0 */
153
154 /*Error codes of ISV */
155 MSP_ERROR_ISV_NO_USER = 13000, /* 32C8 */ /* the user doesn't exist */
156 }
157 #endregion
158
159 #region ISR枚举常量
160 public enum AudioStatus
161 {
162 ISR_AUDIO_SAMPLE_INIT = 0x00,
163 ISR_AUDIO_SAMPLE_FIRST = 0x01,
164 ISR_AUDIO_SAMPLE_CONTINUE = 0x02,
165 ISR_AUDIO_SAMPLE_LAST = 0x04,
166 ISR_AUDIO_SAMPLE_SUPPRESSED = 0x08,
167 ISR_AUDIO_SAMPLE_LOST = 0x10,
168 ISR_AUDIO_SAMPLE_NEW_CHUNK = 0x20,
169 ISR_AUDIO_SAMPLE_END_CHUNK = 0x40,
170
171 ISR_AUDIO_SAMPLE_VALIDBITS = 0x7f /* to validate the value of sample->status */
172 }
173
174 public enum EpStatus
175 {
176 ISR_EP_NULL = -1,
177 ISR_EP_LOOKING_FOR_SPEECH = 0, ///还没有检测到音频的前端点
178 ISR_EP_IN_SPEECH = 1, ///已经检测到了音频前端点，正在进行正常的音频处理。
179 ISR_EP_AFTER_SPEECH = 3, ///检测到音频的后端点，后继的音频会被MSC忽略。
180 ISR_EP_TIMEOUT = 4, ///超时
181 ISR_EP_ERROR = 5, ///出现错误
182 ISR_EP_MAX_SPEECH = 6 ///音频过大
183 }
184
185 public enum RecogStatus
186 {
187 ISR_REC_NULL = -1,
188 ISR_REC_STATUS_SUCCESS = 0, ///识别成功，此时用户可以调用QISRGetResult来获取（部分）结果。
189 ISR_REC_STATUS_NO_MATCH = 1, ///识别结束，没有识别结果
190 ISR_REC_STATUS_INCOMPLETE = 2, ///正在识别中
191 ISR_REC_STATUS_NON_SPEECH_DETECTED = 3, ///保留
192 ISR_REC_STATUS_SPEECH_DETECTED = 4, ///发现有效音频
193 ISR_REC_STATUS_SPEECH_COMPLETE = 5, ///识别结束
194 ISR_REC_STATUS_MAX_CPU_TIME = 6, ///保留
195 ISR_REC_STATUS_MAX_SPEECH = 7, ///保留
196 ISR_REC_STATUS_STOPPED = 8, ///保留
197 ISR_REC_STATUS_REJECTED = 9, ///保留
198 ISR_REC_STATUS_NO_SPEECH_FOUND = 10 ///没有发现音频
199 }
200 #endregion
201 }
自定义异常：
View Code
1 [Serializable] //声明为可序列化的 因为要写入文件中
2 public class MscException : ApplicationException//由用户程序引发，用于派生自定义的异常类型
3 {
4 /// <summary>
5 /// 默认构造函数
6 /// </summary>
7 public MscException() { }
8 public MscException(string message)
9 : base(message) { }
10 public MscException(string message, Exception inner)
11 : base(message, inner) { }
12 }
13 /// <summary>
14 /// 是否出错
15 /// </summary>
16 internal class RecoErrors
17 {
18 public RecoErrors() { }
19 /// <summary>
20 /// 是否发生错误.
21 /// </summary>
22 /// <param name="id">错误ID</param>
23 public virtual void GetError(int id)
24 {
25 if (id != 0)
26 {
27 var ex = new MscException(((ErrorCode)id).ToString("G"));
28 // var ex = new MscException(Enum.GetName(typeof(ErrorCode),id));
29 throw ex;
30 }
31 }
32 }
讯飞语音支持边录边上传，不过我这里采用是一次性上传。起初我采用的是边录边上传，不过感觉有数字混合后识别正常率不好（还没跟讯飞那边沟通。），最后才使用一次性上传，毕竟语音文件也不是大就200KB一下。讯飞语音识别不支持多线程识别。
我做的这个语音识别产品，做成服务端与客户端。服务端：放在一个能连接外网机子上提供语音识别（做了一个简单队列），客户端：将音频数据采集后发送到局域网内的语音识别服务端进行识别。
以上有些代码是借助别人的，第一次写大家尽量不要吐槽，不过可以给点意见。大家相互学习...