Plays sounds from a ped with chop model. For example it used to play bark or sniff sounds. p1 is always 3 or 4294967295 in decompiled scripts. By a quick disassembling I can assume that this arg is unused.
This native is works only when you call it on the ped with right model (ac_chop only ?)
Speech Name can be: CHOP_SNIFF_SEQ CHOP_WHINE CHOP_LICKS_MOUTH CHOP_PANT bark GROWL SNARL BARK_SEQ