using DSound = SlimDX.DirectSound;

    public class Sound
    {
        DSound.DirectSound parent = null;
        DSound.SoundBufferDescription description;
        DSound.SecondarySoundBuffer secBuffer = null;

        public Sound(System.Windows.Forms.Form appForm, Guid driverID)
        {
            this.parent = DSoundDeviceManager.GetDevice(driverID, appForm);
            this.description = new DSound.SoundBufferDescription();

            if ( this.parent != null )
            {
                try
                {
                    this.description.Flags =
                        DSound.BufferFlags.ControlVolume |
                        DSound.BufferFlags.ControlPan |
                        DSound.BufferFlags.GlobalFocus;

                    // read in the WAVE file
                    byte[] data;

                    using ( SlimDX.Multimedia.WaveFile file = new SlimDX.Multimedia.WaveFile(@"H:\AudioMono.wav") )
                    {
                        this.description.Format = file.Format;
                        data = new byte[file.Size];
                        file.Read(data, file.Size);
                    }

                    // create new 
                    this.secBuffer = new DSound.SecondarySoundBuffer(this.parent, this.description);
                }
                catch ( Exception ex )
                {
                    Console.WriteLine(ex.Message);
                }
            }
        }
    }