c# - 如何在 WP8 中播放异步音效？

Question

我有一个使用 XNA Sound Effect 运行的乐器应用程序。我的问题是；当我在播放另一个声音效果的同时播放声音效果时，最后一个正在杀死第一个。这不是我想要的，我想异步播放声音，即使它们也是相同的声音。我能做些什么呢？

谢谢你的帮助。

  public static SoundEffectInstance passSound;
  public static SoundEffect passSound;


  LoadSoundInstance("Assets/SoundEffects/passSound.wav", out passSound, out passSoundInstance);


  private void LoadSound(String SoundFilePath, out SoundEffect Sound)
    {
        // For error checking, assume we'll fail to load the file.
        Sound = null;

        try
        {
            // Holds informations about a file stream.
            StreamResourceInfo SoundFileInfo = App.GetResourceStream(new Uri(SoundFilePath, UriKind.Relative));

            // Create the SoundEffect from the Stream
            Sound = SoundEffect.FromStream(SoundFileInfo.Stream);
        }
        catch (NullReferenceException)
        {
            // Display an error message
            MessageBox.Show("Couldn't load sound " + SoundFilePath);
        }
    }

    private void LoadSoundInstance(String SoundFilePath, out SoundEffect Sound, out SoundEffectInstance SoundInstance)
    {
        // For error checking, assume we'll fail to load the file.
        Sound = null;
        SoundInstance = null;

        try
        {
            LoadSound(SoundFilePath, out Sound);
            SoundInstance = Sound.CreateInstance();
        }
        catch (NullReferenceException)
        {
            // Display an error message
            MessageBox.Show("Couldn't load sound instance " + SoundFilePath);
        }
    }

我只玩游戏；

   public void PlaySound(SoundEffectInstance sound)
    {
        sound.Play();
    }

如果我在播放相同声音时调用 PlaySound 方法，则不会播放新声音。