MT-32 Windows 98 / DOS Weirdness

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MT-32 Windows 98 / DOS Weirdness

Postby strygo » 2017-6-17 @ 19:45

I recently got the original MT-32 and have been tinkering with it. I'm using it with a Windows 98 computer that has a Yamaha Audician 32 Plus sound card (set to IRQ5). I am also using SoftMPU.

If I first boot to Windows 98 and then restart in MS-DOS mode, run SoftMPU and then play a game (e.g.: Doom or King's Quest 4) the music works great.

If I boot directly into MS-DOS mode directly, run SoftMPU and then play a game, I don't hear any music.

Does anyone have any idea what Windows might be doing to properly initialize things? I've read something about IRQ9 - should I be using that instead? Thank you for your time!

Steve
strygo
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Re: MT-32 Windows 98 / DOS Weirdness

Postby strygo » 2017-6-18 @ 00:52

I thought I found a lead when reading http://www.flaterco.com/kb/audio/ISA/index.html.

Having jumped through that hoop, the YAMAHA SAx Setup Utility 2.20 (SETUPSA.EXE) does work, albeit with the inconvenient behavior of trashing AUTOEXEC.BAT each and every time the card is initialized.


Unfortunately, this doesn't appear to be the case. It's an interestingly issue though, which makes me wonder if my problem is similar to this.

Anyone with an MT-32 and an Audician observe this problem?
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Re: MT-32 Windows 98 / DOS Weirdness

Postby strygo » 2017-6-20 @ 19:18

I'm still at a loss here. Is anyone aware of any behavioral differences between restarting from Windows 98 into DOS mode the first time and starting in DOS mode subsequent restarts? I speculated there might be differences in when AUTOEXEC.BAT vs. DOSSTART.BAT gets run, but none of my testing has led anywhere.
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