启动语音识别时，Perfom语音合成

Question

我遇到了麻烦，因为当我在设备（Lumia 830）上运行我的程序时，我的语音合成器冻结了一些短语..我做了很多测试，我发现问题是我初始化语音识别时......我尝试做很多事情，如separe代码synthezis并识别..但它不起作用。有人知道如何解决这个问题？例如，当我的手机说：“说一个命令”它在最后一句话中就像一个Commmaaaaaaaaaaa和...：它真的是一个头痛

这是我的代码：

        sin.Voice = (SpeechSynthesizer.AllVoices.First(x => x.Gender == VoiceGender.Male));

        var language = new Windows.Globalization.Language("en-EN");

        SpeechRecognizer recognizer = new SpeechRecognizer(language);



        List<string> dict= new List<string>();


        string[] responses = { "One", "Twoo", "three", "End", "Exit", };


        var listConstraint = new Windows.Media.SpeechRecognition.SpeechRecognitionListConstraint(responses, "Comandos");


        recognizer.Constraints.Add(listConstraint);
        await recognizer.CompileConstraintsAsync();

        var recognition = recognizer.RecognizeAsync();

        //await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.High, new DispatchedHandler(
        //   () => { mediaElement.Stop(); mediaElement.SetSource(stream, stream.ContentType); mediaElement.Play(); }));
        texto = "     " + "    " + "Say a COmmand" + "     " + "    ";
        SpeechSynthesisStream stream = await sin.SynthesizeTextToStreamAsync(texto);


        if (mediaElement.CurrentState.Equals(MediaElementState.Playing))
        {
            mediaElement.Stop();
            mediaElement.SetSource(stream, stream.ContentType);
            mediaElement.Play();

        }else
        {
            //mediaElement.Stop();
            mediaElement.SetSource(stream, stream.ContentType);
            mediaElement.Play();

        }



        recognition.Completed += this.Recognition_Completed;