Kinect语音识别

Question

我有一个认可项目.它工作,但如果我使用这个项目如何一个类和从其他类调用其方法我有一个问题在线异常:

sre = new SpeechRecognitionEngine(ri.Id);

错误是:

找不到所需ID的识别器.

代码:

KinectAudioSource source = kinectSensor.AudioSource;
source.EchoCancellationMode = EchoCancellationMode.None; // No AEC for this sample
source.AutomaticGainControlEnabled = false; // Important to turn this off for speech recognition
//  source.SystemMode = SystemMode.OptibeamArrayOnly;
speechRecognizer = CreateSpeechRecognizer();

using (Stream s = source.Start())
 {
   speechRecognizer.SetInputToAudioStream(s, new SpeechAudioFormatInfo(EncodingFormat.Pcm, 16000, 16, 1, 32000, 2, null));
   Console.WriteLine("Recognizing speech. Say: 'purple', 'green' or 'blue'. Press ENTER to stop");
   speechRecognizer.RecognizeAsync(RecognizeMode.Multiple);
   Console.ReadLine();
   Console.WriteLine("Stopping recognizer ...");
   speechRecognizer.RecognizeAsyncStop();
  }

 private static SpeechRecognitionEngine CreateSpeechRecognizer()
 {
   RecognizerInfo ri = GetKinectRecognizer();

   SpeechRecognitionEngine sre;
   //if (ri == null) return 0;
   sre = new SpeechRecognitionEngine(ri.Id);
   var colors = new Choices();
   colors.Add("red");
   colors.Add("green");
   colors.Add("blue");
   var gb = new GrammarBuilder { Culture = ri.Culture };
   gb.Append(colors);

   // Create the actual Grammar instance, and then load it into the speech recognizer.
   var g = new Grammar(gb);
   sre.LoadGrammar(g);
   sre.SpeechRecognized += SreSpeechRecognized;
   sre.SpeechHypothesized += SreSpeechHypothesized;
   sre.SpeechRecognitionRejected += SreSpeechRecognitionRejected;
   return sre;
  }
private static RecognizerInfo GetKinectRecognizer()
  {
   Func<RecognizerInfo, bool> matchingFunc = r =>
     {
      string value;
      r.AdditionalInfo.TryGetValue("Kinect", out value);
      return "True".Equals(value, StringComparison.InvariantCultureIgnoreCase) && "en-US".Equals(r.Culture.Name, StringComparison.InvariantCultureIgnoreCase);
       };
      return SpeechRecognitionEngine.InstalledRecognizers().Where(matchingFunc).FirstOrDefault(); 
    }

Answer 1

我认为您的 GetKinectRecognizer() 方法不正确。

如果找到并且找到的值作为输出参数，TryGetValue() 不会返回布尔值吗？您没有对 TryGetvalue() 返回的布尔值执行任何操作。

您是否期望附加信息字典具有等于“Kinect”的键和字符串“True”或“False”值？这就是您的代码似乎要寻找的内容。

该代码是否基于您可以指出的示例？我不太明白你在matchingFunc 中测试的内容。您忽略了 TryGetvalue 的返回值，您正在寻找名为“Kinect”、字符串值为“True”的附加信息键以及文化为“en-US”的识别器。

为什么不直接转储 SpeechRecognitionEngine.InstalledRecognizers() 的内容并确保它包含您认为它包含的内容。这是老派，但很有用：

foreach (RecognizerInfo ri in SpeechRecognitionEngine.InstalledRecognizers())
{
    Debug.WriteLine(String.Format("Id={0}, Name={1}, Description={2}, Culture={3}", ri.Id, ri.Name, ri.Description, ri.Culture));
    foreach(string key in ri.AdditionalInfo.Keys)
    {
        Debug.WriteLine(string.Format("{0} = {1}", key, ri.AdditionalInfo[key]));
    }
    Debug.WriteLine("-");
}

我没有安装 Kinect SDK，但在我的 Windows 7 计算机上它显示：

Id=MS-1033-80-DESK, Name=MS-1033-80-DESK, Description=Microsoft Speech Recognizer 8.0 for Windows (English - US), Culture=en-US
VendorPreferred = 
CommandAndControl = 
Version = 8.0
Language = 409;9
Desktop = 
SupportedLocales = 409;1009;3409;9
AudioFormats = 16;18;20;22;45;53;{6F50E21C-E30E-4B50-95E9-21E8F23D15BD}
SpeakingStyle = Discrete;Continuous
WildcardInCFG = Anywhere;Trailing
Dictation = 
Hypotheses = 
Alternates = CC;Dictation
windowsV6compatible = 
Name = MS-1033-80-DESK
DictationInCFG = Anywhere;Trailing
UPSPhoneSet = 
WordSequences = Anywhere;Trailing
Vendor = Microsoft
-
Id=MS-2057-80-DESK, Name=MS-2057-80-DESK, Description=Microsoft Speech Recognizer 8.0 for Windows (English - UK), Culture=en-GB
 = 
VendorPreferred = 
CommandAndControl = 
Version = 8.0
Language = 809
Desktop = 
SupportedLocales = 809;C09;1409;1809;1C09;2009;2409;2809;2C09;3009;4009;4409;4809;9
AudioFormats = 16;18;20;22;45;53;{6F50E21C-E30E-4B50-95E9-21E8F23D15BD}
SpeakingStyle = Discrete;Continuous
WildcardInCFG = Anywhere;Trailing
Dictation = 
Hypotheses = 
Alternates = CC;Dictation
windowsV6compatible = 
Name = MS-2057-80-DESK
DictationInCFG = Anywhere;Trailing
UPSPhoneSet = 
WordSequences = Anywhere;Trailing
Vendor = Microsoft
-
-

确保您在AdditionalInfo 字典中查找的值确实存在。然后制作您的matchingFunc 来检查它。