Use this. I haven't tested it but it should work well.
;Artificial Intelligence Script
;Header
desc = When Plr In Zone, stop ALL other trigger zone sounds and play this (all zones must have same name)
;Triggers
; Other zones
:state=0,plrwithinzone=0,activated=1:stopsound=$0,activate=0
; This zone
:state=0,plrwithinzone=1,etimergreater=1000:activateifused=1,activate=0,sound=$0,state=1
:state=1,plrwithinzone=0:state=0,etimerstart
Happy to help,
Akanto
| Windows 7 Home Premium 64 - Bit | AMD Athlon II X4 @ 2.8GHz | Nvidia GeForce GTX 460 1GB | 6GB DDR3 RAM | 1TB HDD |