Duo-R Audio error [Solved!]

[that1crzywhtguy]

Not having the best of luck over here again! Just got another Duo, this time an R, from yamatoku-classic, and this one (even though listed as tested) has issues too. The audio makes a tearing noise sometimes.

Here is a video of what it's doing:

Any ideas?
Thanks!

[SignOfZeta]

Wow. That is crazy. It sounds like the creaky door sample is being retriggered elsewhere in the game. Since that can only happen with this game I have to wonder what it does with other titles and of course if you are running CD-Rs or not.

[that1crzywhtguy]

That same sound actually pops up in other games as well. I am running CD-Rs currently, but ones that have worked on other duos with no problems.

[SignOfZeta]

What does a real game do?

[that1crzywhtguy]

What does a real game do?

Tbh, I don't own any real CD titles.

That being said, both CD-R games I tried made the same exact funky sound. In gates of thunder, whenever you get hit, it makes that same god-awful screech.

[esteban]

Not having the best of luck over here again! Just got another Duo, this time an R, from yamatoku-classic, and this one (even though listed as tested) has issues too. The audio makes a tearing noise sometimes.

Here is a video of what it's doing:

Any ideas?
Thanks!

I know! It's an easy mistake to make: you must have accidentally turned on "Virtual Cushion" mode (in the options/settings), but you aren't using a Virtual Cushion, are you?

Problem solved.

[SignOfZeta]

It sounds like corrupted ADPCM sound then, especially if it doesn't affect HuCARDs. I asked about real CDs since it's not impossible that bad reads could cause this, although it's not likely.

As for what could cause this in a Duo R...I don't know. Does it have any mods or repairs or anything?

Try a game with no ADPCM sound in it. I don't know of any but I'm sure they exist, probably some garbage title, see if it still does it.

Also, it's Gate of Thunder, not Gates.

[that1crzywhtguy]

I know! It's an easy mistake to make: you must have accidentally turned on "Virtual Cushion" mode (in the options/settings), but you aren't using a Virtual Cushion, are you?

Problem solved.

I was wondering if someone would go there.

It sounds like corrupted ADPCM sound then, especially if it doesn't affect HuCARDs. I asked about real CDs since it's not impossible that bad reads could cause this, although it's not likely.

As for what could cause this in a Duo R...I don't know. Does it have any mods or repairs or anything?

Try a game with no ADPCM sound in it. I don't know of any but I'm sure they exist, probably some garbage title, see if it still does it.

No mods, it's stock. As far as a game with no ADPCM, I'm not sure. If someone has an idea, I'd be happy to try it out (I didn't even know what ADPCM was before your post, had to use Dr. Google).

I got this R super cheap, so I'd like to find a way to fix it, but if it's not something that can be done easily, I'll just file an ebay claim and ship it back.

Also, it's Gate of Thunder, not Gates.

Lol, I actually mean Lords of Thunder anyway.

[Keith Courage]

I don't think monster lair uses any adpcm but I'm not 100% positive.

Also, Sometimes ADPCM sound can get f'ed up when a drive cannot read the CD very well. You might have burned some bad ISOs or your DUO-R hates the media you are using.

[that1crzywhtguy]

I don't think monster lair uses any adpcm but I'm not 100% positive.

Also, Sometimes ADPCM sound can get f'ed up when a drive cannot read the CD very well. You might have burned some bad ISOs or your DUO-R hates the media you are using.

That's a good tip. I'll try to burn it in a few minutes, although I don't have that media anymore (I burned those ages ago). If it's reading funky, any chance this could be remedied with laser calibration? I don't know how to do it, but I could learn.

[that1crzywhtguy]

Okay. So I burned monster lair (and for the record, the CD-R I use these days is much better than the stuff I had laying around before). That weird audio issue is gone now, although if you look at this video:

you will notice that the main character sprite is distorted as hell. Also, sometimes the music would go away.

Assuming this means ADPCM is the cause of the fart sounds, is this fixable? As far as the music dropping out, that means the laser at least needs an adjustment, right?

[Keith Courage]

The character missing like that can sometimes be a hardware issue(maybe ram)? or once again not being able to read the CD correctly. Also, do you happen to have a CD system card lying around? Give one a test and see what happens.

I've seen glitches like this from the drive either needing a lens adjustment or the lens not being a fan of the type of media being used. Do you have any other brand of CD-R lying around to try out just to rule out that option? Also, if the lens does end up needing an adjustment typically turning the V102 pot counter clockwise slightly generally helps. Another possibility could even be a short in one of the lens wires as to why it's not loading everything perfectly.

The glitchy graphics is not adpcm related so there is a problem that is causing both the glitchy graphics and adpcm issues.

[SignOfZeta]

Yeah, read errors are still a strong possibility.

[that1crzywhtguy]

I tried a different brand of CD-R, and got the same results. I tried to tweak VR102 and looked for a short as well, no luck.

So, if it is something like ram that failed... Is this fixable/worth fixing?

[Keith Courage]

well, I've actually never seen the problems you're having where it's actually been a hardware malfunction so I'm not sure what part of the hardware could be at fault. Any time I've come across this problem it's been a lens reading issue. get ahold of thesteve and see what he thinks. this could just be caused by a bad Trace somewhere and not a faulty part.