private async void Speak(SpeechMessage speech)
{
var service = new Speech();
await this.dispatcher.RunAsync(
CoreDispatcherPriority.Normal,
async () =>
{
try
{
if (speech.Action != null && speech.Action.Equals("STOP"))
{
this.player?.Stop();
}
else
{
service.Speak(this.player, speech);
}
}
catch (Exception e)
{
await
this.SendResult(new ResultMessage(speech) { Result = e.Message, ResultId = e.HResult });
}
});
}
private async void Recognize(SpeechRecognitionMessage speech)
{
if (this.speechService == null)
{
this.speechService = new Speech();
this.speechService.SpeechStatusChanged +=
(sender, args) => { this.appSettings.IsListening = args.Status == SpeechStatus.Listening; };
}
await this.dispatcher.RunAsync(
CoreDispatcherPriority.Normal,
async () =>
{
try
{
if (speech.Action != null && speech.Action.Equals("STOP"))
{
this.speechService.Stop();
return;
}
var expectedConfidence = speech.Confidence ?? (int)SpeechRecognitionConfidence.Medium;
var recognizeText = default(RecognizedSpeech);
var confident = false;
var timeout = DateTime.UtcNow.AddMilliseconds(speech.Ms ?? 0);
while (!confident && (speech.Ms == null || speech.Ms == 0 || DateTime.UtcNow < timeout))
{
// consider timeout here
Debug.WriteLine("recognizing...");
recognizeText = await this.speechService.Recognize(speech.Message, speech.UI);
Debug.WriteLine("end recognizing...");
if (recognizeText.status != SpeechRecognitionResultStatus.Success)
{
break;
}
confident = expectedConfidence >= recognizeText.confidence;
}
var status = recognizeText.status == SpeechRecognitionResultStatus.Success
? recognizeText.index
: (recognizeText.status == SpeechRecognitionResultStatus.UserCanceled
? 0
: -(int)recognizeText.status);
if ((recognizeText.status == SpeechRecognitionResultStatus.Unknown
|| recognizeText.status == SpeechRecognitionResultStatus.Success) && !confident
&& (speech.Ms != null && speech.Ms != 0 || DateTime.UtcNow >= timeout))
{
status = 0; // timeout or cancelled
}
await
this.SendResult(
new SpeechResultMessage(speech)
{
Result = recognizeText.text,
ResultId = status,
Action = recognizeText.action,
Value = recognizeText.confidence
});
}
catch (Exception e)
{
await
this.SendResult(new ResultMessage(speech) { Result = e.Message, ResultId = e.HResult });
}
});
}