public Speech AddAudio(string name, byte[] data, Speaker author)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
if (author == null)
{
throw new ArgumentNullException(nameof(author));
}
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentNullException(nameof(name));
}
Speech speech = new Speech(name, data, author);
author.AddAudio(speech);
_audioRepository.Add(speech);
return(speech);
}