为什么不会在Windows Phone 7的这个音频播放？ [英] Why won't this Audio play in Windows Phone 7?

问题描述

我想在我的Silverlight为Windows Phone 7应用程序来播放音频。我有一个设置为资源的生成操作的MP3音频文件。要播放的声音，我使用的：

I am trying to play audio in my Silverlight for Windows Phone 7 app. I have an MP3 audio file with its build action set to resource. To play the sound, I use:

SoundEffectInstance sfi = null;
...
        Stream source = Application.GetResourceStream(new Uri("/Bird Calls;component/Crow.mp3", UriKind.Relative)).Stream;
        Microsoft.Xna.Framework.Audio.SoundEffect effect = SoundEffect.FromStream(source);
        sfi = effect.CreateInstance();
        sfi.Play();

这code抛出在SoundEffect.FromStream方法InvalidOperationException异常。

This code throws a InvalidOperationException at the SoundEffect.FromStream method.

推荐答案

SoundEffect中不能播放MP3文件。如果你想播放MP3文件，你应该使用的MediaPlayer像

SoundEffect can't play mp3 file. If you want to play mp3 file, you should use MediaPlayer like that

private Song song;


string musicUrl = string.Format("/Bird Calls;component/Crow.mp3");
song = Song.FromUri("name", new Uri(musicUrl, UriKind.Relative));
FrameworkDispatcher.Update();
MediaPlayer.IsRepeating = true;
MediaPlayer.Play(song);

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