如何在不暂停程序的情况下在c＃/ wpf中播放声音。 [英] How to play sounds in c#/wpf without pausing the program.

问题描述

嘿那里，

i需要在我的wpf项目中的KeyDown事件上播放一些声音。

i已经尝试过System.Media.SoundPlayer（）;
使用soundPlayer的
thie prolem是当声音播放时，程序暂停。

声音仅约0.2秒，但它仍然会产生很大的差异。它会影响应用程序的性能。

和声音是.wav文件，如果需要我可以将它转换为mp3。

。 ： - ）



我尝试过：



我已经尝试了 -

System.Media.SoundPlayer（）;

Hey there,
i need to play some sounds on KeyDown event in my wpf project.
i have already tried System.Media.SoundPlayer();
thie prolem with the soundPlayer is that when the sound plays , the program gets paused.
The sounds are of just about 0.2 sec, but it still creates a big difference. It affects the performance of the application.
and the sounds are .wav files, if needed i can convert it to mp3.
thenks. :-)

What I have tried:

I have already tried-
System.Media.SoundPlayer();

推荐答案

系统。 Media.SoundPlayer 能够异步播放声音，因此不会阻止UI线程;使用 LoadAsync 加载文件， LoadCompleted 以获取有关加载完成的信息，并播放播放它：

System.Media.SoundPlayer is capable of playing sounds asynchronously so it doesn't block the UI thread; use LoadAsync to load the file, LoadCompleted to get informed about the load completion, and Play to play it:

SoundPlayer player = new SoundPlayer("file.wav");
player.LoadCompleted += delegate(object sender, AsyncCompletedEventArgs e) {
    player.Play();
};
player.LoadAsync();

或者，如果除了玩游戏之外你不需要做任何其他事情，你可以打电话给在调用构造函数后立即播放 - 感谢Richard Deeming指出这一点！

Or, if you don't need to do anything else after the loading aside from playing, you can just call Play immediately after calling the constructor - thanks to Richard Deeming for pointing this out!

SoundPlayer player = new SoundPlayer("file.wav");
player.Play();

此外，如果您多次播放相同的声音（您可能会这样做，因为您在KeyDown上播放它们）事件），重新使用SoundPlayer对象是值得的，所以你不必创建它们并一遍又一遍地加载声音。

Additionally, if you're playing the same sound multiple times (which you probably do, given that you play them on KeyDown events), it's worth to re-use the SoundPlayer objects so you don't have to create them and load the sound over and over again.

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