Weird Voices in Table Tennis Video

Hello

I was watching the 2006 worlds 3/4 decision match between Wang Liqin and Vladmir Samsonov - I found the link to the megaupload page at http://martinspin.ch/html/world06.html or the direct link at http://www.megaupload.com/?d=JKI8W2NI
and about 5:20 to 5:40 there are repetitions of some strange voice that were clearly not a part of the match/environment. It is really eery, and it seems like it was encoded onto the video, but I am not sure why....

Anyway, I invite anyone to download this match - as the match itself is quite fun to watch, and verify these strange voices. If anyone has ever heard something like this in another match, please share your thoughts on this.

again, sorry about that other topic. I received an error message saying that the server did not receive the topic so i rewrote the whole thing only to find out that it was, in fact, posted...

Are you certain? A cough is like *hack *hack sounding... this voice is like raspy, hoarse voice that really doesn't seem to resemble coughing. but i guess it could be someone having respiratory problems... i'm surprised that no one else has seen this match. aside from the voices, it's pretty good. I personally did not think that samsanov would get to a 4:3 result, with both of the players' recent performances.