Question

我正在使用这个完美无缺的代码，除非我想添加能够知道startSpeaking通话何时完成通话。

static class VoiceEffect
{
    SpeechSynthesizer reader = new SpeechSynthesizer();
    private volatile bool _isCurrentlySpeaking = false;

    /// <summary>Event handler. Fired when the SpeechSynthesizer object starts speaking asynchronously.</summary>
    private void StartedSpeaking(object sender, SpeakStartedEventArgs e)
    { _isCurrentlySpeaking = true; }
    /// <summary>Event handler. Fired when the SpeechSynthesizer object finishes speaking asynchronously.</summary>
    private void FinishedSpeaking(object sender, SpeakCompletedEventArgs e)
    { _isCurrentlySpeaking = false; }

    private VoiceEffect _instance;
    /// <summary>Gets the singleton instance of the VoiceEffect class.</summary>
    /// <returns>A unique shared instance of the VoiceEffect class.</returns>
    public VoiceEffect GetInstance()
    {
        if(_instance == null)
        { _instance = new VoiceEffect(); }
        return _instance;
    }

    /// <summary>
    /// Constructor. Initializes the class assigning event handlers for the
    /// SpeechSynthesizer object.
    /// </summary>
    private VoiceEffect()
    {
        reader.SpeakStarted += new EventHandler<SpeakStartedEventArgs>(StartedSpeaking);
        reader.SpeakCompleted += new EventHandler<SpeakCompletedEventArgs>(FinishedSpeaking);
    }

    /// <summary>Speaks stuff.</summary>
    /// <param name="str">The stuff to speak.</param>
    public void startSpeaking(string str)
    {
        reader.Rate = -2; // Voice  effects.
        reader.Volume = 100;

        // if the reader's currently speaking anything,
        // don't let any incoming prompts overlap
        while(_isCurrentlySpeaking)
        { continue; }

        reader.SpeakAsync(str);
    }

    /// <summary>Creates a new thread to speak stuff into.</summary>
    /// <param name="str">The stuff to read.</param>
    public void createVoiceThread(string str)
    {
        Thread voicethread = new Thread(() => startSpeaking(str)); // Lambda Process
        voicethread.IsBackground = true;
        voicethread.Start();
    }        
}

来自这个问题https://stackoverflow.com/a/17153718/1137006

我通过在另一个类中写这个来调用它：

TextToSpeech.startSpeaking(text);

我想知道这个电话什么时候完成并且讲完了。可能作为一个事件？我可以在VoiceEffect类中看到该事件，但我不知道如何在执行startSpeaking（）调用的类中触发它。我需要知道的原因是在发言之后改变WPF控制。是否可以添加到此代码中？

修改：澄清

在我的MainWindow类中，我可以从具有VoiceEffect类和startSpeaking方法的TextToSpeech.cs文件中调用多个TextToSpeech。

public partial class MainWindow : Window
{
public MainWindow()
    {
        InitializeComponent();

        TextToSpeech.startSpeaking("Test1");
        TextToSpeech.startSpeaking("Test2");
        TextToSpeech.startSpeaking("Test3");
        TextToSpeech.startSpeaking("Test4");
    }
}

他们都会在讲话之前等待前一次完成，并且在演讲期间让节目继续前进。

我想知道我是否可以获得一个事件或某些事情，例如“Test2”已经说过，然后在MainWindow中更改WPF控件？例如，隐藏文本标签。

Answer 1

这是你在找什么？

 public MainWindow() {
      InitializeComponent();
       SpeechSynthesizer reader = new SpeechSynthesizer();

       reader.SpeakCompleted += Reader_SpeakCompleted;
  }

   void Reader_SpeakCompleted(object sender, SpeakCompletedEventArgs e) {

   }

添加完成的语音回调到文本转语音功能

1 个答案: