s_VisAreasPropagation
DUMPTODISK

Sets the vis area propagation number.
Usage: s_VisAreasPropagation 5
Default is 5. This number defines how far sound will
propagate, in vis areas from the player's position. A
value of 1 means the sound is only heard in the current
vis area, while 3 means sound is heard in adjacent areas
which are connected by one portal.