
Sorry for replying quite late, but I have been very busy over the last couple of days.
I have just read all your suggestions and regard the French Umpire sounds as a good project to undertake, the question is: which French-speaking chair umpire should I choose? Pascal Maria?
As for grunts, I am not very good at making them, I think you'd better ask kneza who is an expert in grunt sounds.

Davide Menez, the frequency you went for is good, so the source of the problem may be somewhere else, maybe my computer is the one to blame here.