Play sound and Stop sound (Windows Phone )

Windows-Phone-7: Stop playing sound called via SoundEffect.FromStream

You need to create a SoundEffectInstance which will store a reference to your SoundEffect. TheSoundEffectInstance has a Stop method which can be called.

SoundEffectInstance seiCircus;

using (var stream = TitleContainer.OpenStream("circus.wav"))
{
    var effect = SoundEffect.FromStream(stream);
    //create the instance
    seiCircus = effect.CreateInstance();

    FrameworkDispatcher.Update();
    //play sound via the instance
    seiCircus.Play();
}
//some event called to stop sound
seiCircus.Stop();