Add a variable like SET BLASTER=A220 I7 D1 T1 (the same values should be used as dosbox is configured) normally you would enter it into autoexec.bat I'll leave it for you to figure out where you input it so it always boots up with it otherwise you can type it manually (hint at the end inside dosbox.conf). =)
Also if you open up ARENA.bat you'll see something like, @A -sa:220 -si:7 -sd:1 -ma:220 -mq:7 -md:1 -ssbdig.adv -msbfm.adv
You will want to start the game with the batch file and NOT the Arena executable (A.exe).
To change your sound settings for the game run INSTALL.EXE in the Arena directory.
SET BLASTER=A220 I5 D1 T3 P330 H6 E620 | | | | | | | | | | | | | | | | | |_______ AWE 32 Only Parameter | | | | | | | |__________ "High" DMA Channel | | | | | | |_______________ MIDI Port | | | | | |__________________ Type of Card | | | | |_____________________ DMA Channel | | | |________________________ Interrupt | | |_____________________________ Port Address | |___________________________________ Environment Variable |________________________________________ DOS Command
The TYPE OF CARD (T value in the Blaster environment variable)should be 1 if you have an older Soundblaster, or a Sound Blaster emulating card. Use 3 if you have a newer plain Soundblaster. Use 2 for an older Soundblaster Pro. Use 4 for a newer Soundblaster Pro.
You shouldn't need to have the following (P330 H6 E620) and can ignore that.