C＃UWP SpeechRecognizer问题

Timur Ahmetov 发表于 Dev

帖木儿·艾哈迈托夫（Timur Ahmetov）

我正在开发UWP，并想使用SpeechRecognizer。它应该仅对单词“ Next”和“ Back”作出反应。但通常，它会将“ NExt”识别为“后退”。我的代码如下。如何解决呢？

var defaultLanguage = SpeechRecognizer.SystemSpeechLanguage;
        _speechRecognizer = new SpeechRecognizer(defaultLanguage);
        _coreDispatcher = CoreWindow.GetForCurrentThread().Dispatcher;
        var constraintList = new SpeechRecognitionListConstraint(new List<string>() { "Next", "Back" });
        _speechRecognizer.Constraints.Add(constraintList);

        var result = await _speechRecognizer.CompileConstraintsAsync();
        if (result.Status == SpeechRecognitionResultStatus.Success)
        {
            _speechRecognizer.ContinuousRecognitionSession.ResultGenerated += ContinuousRecognitionSession_ResultGenerated;
            _speechRecognizer.ContinuousRecognitionSession.Completed += ContinuousRecognitionSession_Completed;
            await _speechRecognizer.ContinuousRecognitionSession.StartAsync();
        }

这是ResultGeneratedEvent：

private async void ContinuousRecognitionSession_ResultGenerated(SpeechContinuousRecognitionSession sender, SpeechContinuousRecognitionResultGeneratedEventArgs args)
    {
        {
            await _coreDispatcher.RunAsync(CoreDispatcherPriority.High, () =>
            {

                string command = args.Result.Text;
                Messenger.Default.Send(new VoiceReactMessage(command));
                switch (command)
                {
                    case "Next":
                        SetHorizontalOffset(-ItemsPanelRoot.ActualWidth);
                        break;
                    case "Back":
                        SetHorizontalOffset(ItemsPanelRoot.ActualWidth);
                        break;
                }
            });
        }