gistfile1.cs

class publicSound {
    private System.ComponentModel.BackgroundWorker backgroundWorker;
    private XAudio2 device; //declare it here so we don't need it as a parmeter later
    private MasteringVoice masteringVoice;
    private bool shouldPlay;

    public publicSound() {
        device = new XAudio2();
        masteringVoice = new MasteringVoice(device);

        shouldPlay = true;

        backgroundWorker = new System.ComponentModel.BackgroundWorker();
        this.backgroundWorker.DoWork += new System.ComponentModel.DoWorkEventHandler(this.backgroundWorker_DoWork);
    }

    public void PlaySound(string fileName) {
        backgroundWorker.RunWorkerAsync(fileName);
    }

    public void CleanUp() {
        shouldPlay = false; //stop all playing sounds
        Thread.Sleep(10); //wait for them to stop
        device.Dispose();
        masteringVoice.Dispose();
    }

    private void backgroundWorker_DoWork(object sender, System.ComponentModel.DoWorkEventArgs e) {
        string fileName = (string)e.Argument;
        var s = System.IO.File.OpenRead(fileName);
        WaveStream stream = new WaveStream(s);
        s.Close();

        AudioBuffer buffer = new AudioBuffer();
        buffer.AudioData = stream;
        buffer.AudioBytes = (int)stream.Length;
        buffer.Flags = BufferFlags.EndOfStream;


        SourceVoice sourceVoice = new SourceVoice(device, stream.Format);
        sourceVoice.SubmitSourceBuffer(buffer);
        sourceVoice.Start();

        while (sourceVoice.State.BuffersQueued > 0)
        {
            if (!shouldplay) //should we be shutting down?
                break;
            Thread.Sleep(10);
        }

        buffer.Dispose();
        sourceVoice.Dispose();
        stream.Dispose();
    }
}