有关语音识别的问题Exception from HRESULT: 0x800455BC

gaocong1990 2013-05-14 03:42:31

                                string smsText = string.Empty;

                                SpeechRecognizerUI recognizer = new SpeechRecognizerUI();

                                IAsyncOperation<SpeechRecognitionUIResult> recoOperation;

                                IEnumerable<SpeechRecognizerInformation> chineseRecognizers = from recognizerInfo in InstalledSpeechRecognizers.All

                                                                                              where recognizerInfo.Language =="zh-CN"

                                                                                              select recognizerInfo;

                                recognizer.Recognizer.SetRecognizer(chineseRecognizers.ElementAt(0));

                                //recognizer.Recognizer.Grammars.AddGrammarFromPredefinedType("dictation", SpeechPredefinedGrammar.Dictation);

                                await voice.SpeakTextAsync("请说出短信内容");

                                try

                                {

                                    recoOperation = recognizer.RecognizeWithUIAsync();

                                    var recoResult = await recoOperation;

                                    if ((int)recoResult.RecognitionResult.TextConfidence < (int)SpeechRecognitionConfidence.Medium)

                                    {

                                        await voice.SpeakTextAsync("说话声音太小");

                                        return;

                                    }

                                    else 

                                    {

                                        smsText = recoResult.RecognitionResult.Text;

                                    }