Scratchy sound in older games? <Solved!>

[simplygriff]

I'm thinking this is a software setting or something of that nature so I'm posting here.  If It should be moved please do so.

I'm using Mame for Pentium v. 082 with Mamewah v. 0.97 on a 2.8GHz P4 dell box.  Let me start by saying that the sounds in MAMEWAH are perfectly fine.  My problem is very scratchy sounds in MAME on older games such as pac-man, defender, centipede, basically anything that is not Neo-Geo, Mortal Kombat or street fighter.  The odd thing is that in MAME32 v082 the sounds are fine in virtually all games.  Both MAME and MAME32 are using the same romsets so it shouldn't be the roms.  I've tried playing with the sample rates in MAMEpp.ini as well as the resample filter but to no avail.  I only got a little better sound quality when I set the sample rate to 11025 from 44100 but soon after the sounds became scratchy again.  Any suggestions?  I'm using 0.82 because that is the version my rom set is updated to.  

[simplygriff]

I've tried upgrading to 0.84 but to no avail.  Still scratchy sound in virtually all older games I try.  I know someone would probably need to know the specs of my sound carede to be able to help me.  Unfortunately I don't have that at the moment but will get it tonight.  I know I can't be the only one with this problem.  Any ideas?

[Cave]

Have you tried messing with vsync or triple buffer, i've had sound issues before and these were the problem.

cave

[Minwah]

I've always had sound problems in Vs Super Mario Bros...I've never really figured out why.

I think there was a long thread about scratchy sound a while ago (6-12 months?), try to find it - it might have some other things you could try.  Odd thing is tho, that I recall many people having scratchy sound in the MK series, but you say that is OK for you...

[simplygriff]

I solved it!  I changed the audio latency to 2 instead of 1.  This has given me great sound in pac-man, centipede, defender, mk2, sf2, and everything else I've tried.

I did try the triple buffer and vsync though before I did this.  Triple buffer didn't do anything for me and vsync gave me about a 25% framerate hit in mk2.

Problem solved!
-G

[Onji]

nice find! This has been killing me. Thanks!

[simplygriff]

No problem. Wish I had tried it long ago.  It drove me nuts for the longest time too.
-G

[Howard_Casto]

If you guys would search the board this question was asked about 4 months ago when audio latency first came out and I replied to set it to a higher number.  I know the search system isn't the best in the world but it isn't THAT bad.  I quit answering the question after it was posted the 15th time.  

[simplygriff]

Man, I searched about 4 times for scratchy sound and sound problems. and got nothing or too much to sort through.  I didn't know what else to call it.  Oh well at least it's fixed.
-G