/// <summary>
/// Returns a speech-to-text result object based on information in the result JSON.
/// </summary>
/// <param name="resultJSON">Google speech-to-text result JSON object</param>
/// <returns>Speech-to-text result object</returns>
public static SpeechToTextResult GetTextResultFromResultJSON(JSONObject resultJSON)
{
SpeechToTextResult textResult = null;
JSONObject alternatives = resultJSON.GetField(Constants.GoogleResponseJSONAlternativesFieldKey);
if (alternatives != null)
{
textResult = new SpeechToTextResult();
textResult.TextAlternatives = new TextAlternative[alternatives.Count];
for (int i = 0; i < textResult.TextAlternatives.Length; ++i)
{
var alternative = new GoogleTextAlternative();
string text = "";
float confidence = 0;
alternatives[i].GetField(out text, Constants.GoogleResponseJSONAlternativeTranscriptFieldKey, text);
alternatives[i].GetField(out confidence, Constants.GoogleResponseJSONAlternativeConfidenceFieldKey, confidence);
alternative.Text = text;
alternative.Confidence = confidence;
textResult.TextAlternatives[i] = alternative;
}
}
if (textResult == null || textResult.TextAlternatives == null || textResult.TextAlternatives.Length == 0)
{
textResult = GetDefaultGoogleSpeechToTextResult();
}
return(textResult);
}
/// <summary>
/// Returns a speech-to-text result with a single empty Google text alternative.
/// </summary>
/// <returns>Default Google speech-to-text result object</returns>
public static SpeechToTextResult GetDefaultGoogleSpeechToTextResult()
{
var textResult = new SpeechToTextResult();
textResult.TextAlternatives = new TextAlternative[1];
var alternative = new GoogleTextAlternative();
alternative.Text = "";
alternative.Confidence = 0;
textResult.TextAlternatives[0] = alternative;
return(textResult);
}