/// <summary>
/// Starts mixing the stream to the specified track.
/// An exception is thrown if the track already has a contributor.
/// </summary>
public void Start()
{
if (_track.SubscribeContributor(this) == false)
{
throw new GATException("Track " + _track.TrackNb + " already has a contributor.");
}
_stream.AddAudioThreadStreamClient(this);
}