/// <summary>
///
/// </summary>
/// <param name="audio"></param>
public void AddAudio(SmilAudio audio)
{
List <SmilAudio> l = new List <SmilAudio>(this.Audio);
l.Add(audio);
this.Audio = l.ToArray();
}
public void AddAudio(SmilAudio audio)
{
Audio = new[] { audio };
}