> Any one else have a problem with low sound volume on DOS version of
> MicroWorlds?
>
Hello Bill,
Sure did, and it took ages to figure it out.
There is a utility called mixerset.exe that comes with the Sound Blaster or
Vibra16 cards to adjust the volume settings. The standard SB installation
adds a line to autoexec.bat to run this on startup to pre-set the mixer:
c:\vibra16\mixerset /p /q
The /p option says to take the preset settings from the file ctmix.cfg (in
the same directory), and /q says to do it quietly with no screen output. If
you run mixerset /? it will give a few more details.
You can change the ctmix.cfg file with a text editor to adjust the settings.
It looks like this:
/MA:220;0
/VO:220;0
/MI:220;0
/CD:220;0
/LI:220;0
/MIC:0
/SP:0
/TR:0;0
/BA:160;0
/IPL:MIC+ CDR- CDL+ LIR- LIL+ MIR- MIL-
/IPR:MIC+ CDR+ CDL- LIR+ LIL- MIR- MIL-
/OPS:MIC+ CDR+ CDL+ LIR+ LIL+
/AGC:+
/IPG:1,1
/OPG:1,1
Sounds like you need to increase the IPG (InPut Gain) and OPG (OutPut Gain)
settings. Legal values are 1,2,4, and some cards go to 8. The two values are
for the left,right channels. I set both to 4,4 and then adjust the MAster
volume to MA:225;0
This fixes the volume for the initial bootup. If you run other programs or
Windows apps (eg the CD player) before MW you may find that the volume has
been changed again. So I make a 2-line DOS batch file called MW.BAT that
runs mixerset /p /q first, and than starts MW.
Hope this helps,
John Wolff
Electronics & Networks Engineer Phone: +61 3 542 2281
CSIRO Ian Wark Laboratory Fax: +61 3 543 6613
Private Bag 10, Rosebank MDC Private: +61 3 754 2426
Clayton, VIC, 3169, Australia Email: J.Wolff@forprod.csiro.au
---------------------------------------------------------------
Please post messages to the Logo forum to logo-l@gsn.org. Mail
questions about the list administration to logofdn@gsn.org. To
unsubscribe send unsubscribe logo-l to majordomo@gsn.org.