C# GrammarBuilder.AppendRuleReference方法代码示例

        /// <summary>
        /// Initialize Kinect with words.
        /// </summary>
        protected void KinectStart()
        {
            RecognizerInfo ri = GetKinectRecognizer();

            if (null != ri)
            {
                //Populate the speech engine with keywords we are interested in.
                this.speechEngine = new SpeechRecognitionEngine(ri.Id);

                var gb = new GrammarBuilder { Culture = ri.Culture };

                //Make the path point to current directory
                string path = Directory.GetCurrentDirectory();
                path += "\\";
                path += pathToXML;

                if (pathToXML != null)
                {
                    gb.AppendRuleReference(path);
                }
                else if (dictionary != null)
                    gb.Append(dictionary);
                else
                    throw new NullReferenceException();

                var g = new Grammar(gb);

                speechEngine.LoadGrammar(g);

                // For long recognition sessions (a few hours or more), it may be beneficial to turn off adaptation of the acoustic model.
                // This will prevent recognition accuracy from degrading over time.
                speechEngine.UpdateRecognizerSetting("AdaptationOn", 0);

                this.audioStream = sensor.AudioSource.Start();

                speechEngine.SetInputToAudioStream(
                   this.audioStream, new SpeechAudioFormatInfo(EncodingFormat.Pcm, 16000, 16, 1, 32000, 2, null));
                //speechEngine.RecognizeAsync(RecognizeMode.Multiple);
                kinnectStatus = true;
            }
            else
            {
                //Speech Recognization not found
            }
        }

        public SpeechRecognizer(TranscriptRecorderSession transcriptRecorder)
        {
            _transcriptRecorder = transcriptRecorder;
            _speechTranscript = new List<Microsoft.Speech.Recognition.RecognitionResult>();
            _isActive = false;
            _isRecognizing = false;

            // Create a speech recognition connector
            _speechRecognitionConnector = new SpeechRecognitionConnector();

            _currentSRLocale = ConfigurationManager.AppSettings[SpeechRecogLocaleKey];
            if (String.IsNullOrEmpty(_currentSRLocale))
            {
                NonBlockingConsole.WriteLine("No locale specified, using default locale for speech recognition: " + DefaultLocale);
                _currentSRLocale = DefaultLocale;
            }

            // Create speech recognition engine and start recognizing by attaching connector to engine
            try
            {
                _speechRecognitionEngine = new Microsoft.Speech.Recognition.SpeechRecognitionEngine();
                /*
                System.Globalization.CultureInfo localeCultureInfo = new System.Globalization.CultureInfo(_currentSRLocale);
                foreach (RecognizerInfo r in Microsoft.Speech.Recognition.SpeechRecognitionEngine.InstalledRecognizers())
                {
                    if (r.Culture.Equals(localeCultureInfo))
                    {
                        _speechRecognitionEngine = new Microsoft.Speech.Recognition.SpeechRecognitionEngine(r);
                        break;
                    }
                }
                if (_speechRecognitionEngine == null)
                {
                    _speechRecognitionEngine = new SpeechRecognitionEngine();
                }
                */
                //_speechRecognitionEngine = new Microsoft.Speech.Recognition.SpeechRecognitionEngine(new System.Globalization.CultureInfo(_currentSRLocale));
            }
            catch (Exception e)
            {
                NonBlockingConsole.WriteLine("Error: Unable to load SpeechRecognition locale: " + _currentSRLocale + ". Exception: " + e.ToString());
                // Use default locale
                NonBlockingConsole.WriteLine("Falling back to default locale for SpeechRecognitionEngine: " + DefaultLocale);
                _currentSRLocale = DefaultLocale;
                _speechRecognitionEngine = new SpeechRecognitionEngine();
                //_speechRecognitionEngine = new Microsoft.Speech.Recognition.SpeechRecognitionEngine(new System.Globalization.CultureInfo(_currentSRLocale));
            }

            _speechRecognitionEngine.SpeechDetected += new EventHandler<Microsoft.Speech.Recognition.SpeechDetectedEventArgs>(SpeechRecognitionEngine_SpeechDetected);
            _speechRecognitionEngine.RecognizeCompleted += new EventHandler<Microsoft.Speech.Recognition.RecognizeCompletedEventArgs>(SpeechRecognitionEngine_RecognizeCompleted);
            _speechRecognitionEngine.LoadGrammarCompleted += new EventHandler<Microsoft.Speech.Recognition.LoadGrammarCompletedEventArgs>(SpeechRecognitionEngine_LoadGrammarCompleted);

            _grammars = new List<Microsoft.Speech.Recognition.Grammar>();
            // TODO: Add default installed speech recognizer grammar
            // TODO: Might already be done via compiling with Recognition Settings File?
            // Add default locale language grammar file (if it exists)
            String localLanguageGrammarFilePath = Path.Combine(Environment.CurrentDirectory, @"en-US.cfgpp");
            if (File.Exists(localLanguageGrammarFilePath))
            {
                NonBlockingConsole.WriteLine("SpeechRecognizer(). Adding locale language file at path: " + localLanguageGrammarFilePath);
                GrammarBuilder builder = new GrammarBuilder();
                builder.AppendRuleReference(localLanguageGrammarFilePath);
                Grammar localeLanguageGrammar = new Grammar(builder);
                localeLanguageGrammar.Name = "Local language grammar";
                //localeLanguageGrammar.Priority = 1;
                _grammars.Add(localeLanguageGrammar);
            }
            
            string[] recognizedString = { "hello", "bye", "yes", "no", "help", "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "exit" };
            Choices numberChoices = new Choices(recognizedString);
            Grammar basicGrammar = new Grammar(new GrammarBuilder(numberChoices));
            basicGrammar.Name = "Basic Grammar";
            //basicGrammar.Priority = 2;
            _grammars.Add(basicGrammar);

            LoadSpeechGrammarAsync();
        }