how can i edit a sound to achieve this kind of stuttering/buzzing?

[maxnino]

in a youtube fad video this sound file
http://wiki.teamfortress.com/w/image...attlecry04.wav
was edited into this
http://www.youtube.com/watch?v=Q80DPNA1FeE?t=2s

at 0:02
it's basically a "wohoo-h-h-h-h-h"

and here at 0:09
http://www.youtube.com/watch?v=Q80DPNA1FeE?t=9s
he says AAAH-H-H-H-H
with the same stuttering/buzz effect
same effect here
http://youtu.be/CvvtFNkNCoQ?t=12s
how can i edit a sound file to sound like this?

[soundesign]

You can do it the manual way which is basically to chop very short sections out and duplicate them for x number of cycles (any editor can do it). Or you can use a stutter vst like stutter edit and perform it with your keyboard in a daw.