关于讯飞语音SDK开发学习

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
        }
View Code

 

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...

 

出处:http://www.cnblogs.com/milian/archive/2013/04/08/3007315.html

posted on 2017-03-13 11:11  jack_Meng  阅读(7489)  评论(2编辑  收藏  举报

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