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Sound Echo in Mame32

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IG-88:
I am looking for advice on how I can fix this issue I'm having. I got an old machine that is running mame32 v.83 and some of the games have this annoying echoing during gameplay. If I try using v75 I don't have the problem. Is that small leap in versions that much more hardware intensive that it mucks up the sound? I'd like to continue using v83 if I could. Any ideas on how to fix it?

I'm running it on an optimized version of win98se. The system specs are:

1.2ghz CPU
765mb ram
ATI 3D Rage Pro Mach64
Creative Labs CT4750


thanks

ahofle:

--- Quote from: IG-88 on October 15, 2007, 09:02:37 pm ---Is that small leap in versions that much more hardware intensive that it mucks up the sound?

--- End quote ---

It's very likely.  Any time I've run into that echoing it's because the frame rate isn't 100%.  You can check that by pressing F11 while running the game.  If it's lower than 100%, then you need more hardware.

IG-88:
Cool. Do you think a better sound card or a bigger (more mb) vid card would help? What would you recommend?

ahofle:
In my experience those two things help very little.  I went through this same thing a couple years ago and bought a sound card thinking the onboard sound was the problem.  It didn't help at all.  The only thing that seems to help (other than tweaking MAME) is a faster CPU.  :(  What games are choppy?  Have you tried F11 to see how close you are to 100%? 

IG-88:
OK. I went and checked. Knights of the round was at about 84%. I changed the frameskip to auto from 0 and it helped a little. I then bumped it up to 3 and it looks pretty good. My old eyes can't see much difference. Arabian Knights was the other one I was looking at. It was at 72%. I haven't tried any frameskip on that yet.

Now. Next question. Is that frameskip I set game independent? Or is that a "global" type setting?

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