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RecognizerInfo Class

Represents information about a SpeechRecognizer or SpeechRecognitionEngine instance.

System.Object
  System.Speech.Recognition.RecognizerInfo

Namespace:  System.Speech.Recognition
Assembly:  System.Speech (in System.Speech.dll)
public class RecognizerInfo

The RecognizerInfo type exposes the following members.

  NameDescription
Public propertyAdditionalInfoGets additional information about a SpeechRecognizer or SpeechRecognitionEngine instance.
Public propertyCultureGets the culture supported by a SpeechRecognizer or SpeechRecognitionEngine instance.
Public propertyDescriptionGets the description of a SpeechRecognizer or SpeechRecognitionEngine instance.
Public propertyIdGets the identifier of a SpeechRecognizer or SpeechRecognitionEngine instance.
Public propertyNameGets the friendly name of a SpeechRecognizer or SpeechRecognitionEngine instance.
Public propertySupportedAudioFormatsGets the audio formats supported by a SpeechRecognizer or SpeechRecognitionEngine instance.
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  NameDescription
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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You can obtain identifying information for an initialized recognition engine using SpeechRecognizer.RecognizerInfo for a SpeechRecognizer object or SpeechRecognitionEngine.RecognizerInfo for a SpeechRecognitionEngine object.

The information returned in instances of RecognizerInfo obtained from a SpeechRecognizer is determined by the settings in the Speech Properties member of the Control Panel.

You can use instances of RecognizerInfo to construct a specific configuration of SpeechRecognitionEngine using the SpeechRecognitionEngine(RecognizerInfo) constructor.

The static method InstalledRecognizers() returns a list of all available SpeechRecognitionEngine configurations as RecognizerInfo instances.

The following example validates a given CultureInfo and identifier string against the permitted SpeechRecognitionEngine configurations, expressed as a list of RecognizerInfo objects.

If the CultureInfo and identifier string are valid, the example creates a new instance of SpeechRecognitionEngine using the RecognizerInfo instance as an argument.


private SpeechRecognitionEngine SelectRecognizer(CultureInfo requiredCulture, string requiredId) 
{
  // Select based on a specific recognizer configuration
  SpeechRecognitionEngine speechRecognitionEngine=null;
  foreach (RecognizerInfo config in SpeechRecognitionEngine.InstalledRecognizers()) 
  {
    if (config.Culture.Equals(requiredCulture) && config.Id== requiredId) 
    {
      speechRecognitionEngine = new SpeechRecognitionEngine(config);
      break;
    }
  }
  return speechRecognitionEngine;
}

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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