nullreference on installed recognizers RRS feed

  • Question

  • Hi all,

    I'm trying to add speech recognition to my project. The turtle demo works fine; I can control it with my voice.

    In my own project I'm trying to search for the english language recognizer:

    string recognizerId = "SR_MS_en-US_Kinect_11.0";
    RecognizerInfo ri = SpeechRecognitionEngine.InstalledRecognizers ().Where (r => r.Id == recognizerId).FirstOrDefault ();

    Which results in a nullreference error.

    I've also tried searching through all installed recognizers:

    foreach (RecognizerInfo recognizerinfo in SpeechRecognitionEngine.InstalledRecognizers()) 
    			string value;
    			recognizerinfo.AdditionalInfo.TryGetValue("Kinect", out value);
    			if("True".Equals(value, StringComparison.OrdinalIgnoreCase) && "en-US".Equals(recognizerinfo.Culture.Name, StringComparison.OrdinalIgnoreCase))
    				return recognizerinfo;

    Same error. I have checked my registry and it looks fine to me:

    Here's the full error i'm getting:

    NullReferenceException: Object reference not set to an instance of an object
    Microsoft.Speech.Internal.ObjectTokens.RegistryDataKey.HKEYfromRegKey (Microsoft.Win32.RegistryKey regKey)
    Microsoft.Speech.Internal.ObjectTokens.RegistryDataKey.RootHKEYFromRegPath (System.String rootPath)
    Microsoft.Speech.Internal.ObjectTokens.RegistryDataKey.Open (System.String registryPath, Boolean fCreateIfNotExist)
    Microsoft.Speech.Internal.ObjectTokens.ObjectTokenCategory.Create (System.String sCategoryId)
    Microsoft.Speech.Recognition.SpeechRecognitionEngine.InstalledRecognizers ()
    SpeechRecognition.GetKinectRecognizer () (at Assets/SpeechRecognition.cs:15)
    SpeechRecognition.CreateSpeechRecognizer () (at Assets/SpeechRecognition.cs:31)
    SpeechRecognition.InitializeKinect () (at Assets/SpeechRecognition.cs:76)
    SpeechRecognition.Start () (at Assets/SpeechRecognition.cs:83)

    I have the Microsoft Serve Speech Platform Runtime, Microsot Speech platform SDK v11.0 and Kinect for Windows Speech Recognition Language Pack (en-US) installed and I have tried reinstalling to no avail, unfortunately. Hopefully someone can help me.

    edit: even if I just test this:

    System.Collections.ObjectModel.ReadOnlyCollection<RecognizerInfo> test = SpeechRecognitionEngine.InstalledRecognizers();

    I get the same error. If there were no installed recognizers, the test variable would just be null right?

    • Edited by Ixaeon Wednesday, March 25, 2015 10:46 AM
    Wednesday, March 25, 2015 10:12 AM

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