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RecognizerInfo.SupportedAudioFormats Property

Gets the audio formats supported by a SpeechRecognizer or SpeechRecognitionEngine instance.

Namespace:  System.Speech.Recognition
Assembly:  System.Speech (in System.Speech.dll)

public ReadOnlyCollection<SpeechAudioFormatInfo> SupportedAudioFormats { get; }

Property Value

Type: System.Collections.ObjectModel.ReadOnlyCollection<SpeechAudioFormatInfo>
Returns a list of audio formats supported by a specific SpeechRecognizer or SpeechRecognitionEngine instance.

The following example implements a button click that displays all the information in a RecognizerInfo instance. The example uses the SupportedAudioFormats property to obtain the encoding formats supported by a recognition engine configuration, and then displays it in a MessageBox.

private void recognizerInfoButton_Click(object sender, EventArgs e) 
{
  RecognizerInfo info = _recognizer.RecognizerInfo;
  string AudioFormats = "";
  foreach (SpeechAudioFormatInfo fmt in info.SupportedAudioFormats) 
  {
    AudioFormats += String.Format("       {0}\n", fmt.EncodingFormat.ToString());
  }
  string AdditionalInfo = "";
  foreach (string key in info.AdditionalInfo.Keys) 
  {
    AdditionalInfo += String.Format("      {0}: {1}\n", key, info.AdditionalInfo[key]);
  }
  MessageBox.Show(String.Format(
                           "Name:                 {0 }\n" +
                           "Description:          {1} \n" +
                           "SupportedAudioFormats:\n" +
                           "{2} " +
                           "Culture:              {3} \n" +
                           "AdditionalInfo:       \n" +
                           " {4}\n",
                           info.Name.ToString(),
                           info.Description.ToString(),
                           AudioFormats,
                           info.Culture.ToString(),
                           AdditionalInfo));
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4
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