Gngeo 0.611 Sound Problem

[Eso Rimmer]

Hello,
I've downloaded gngeo for the firs time and put some roms to it and it's perfect but I have problem with sound. When a game starts, sound is ok, but stops playing in a while and only one continuous tone sound is produced by gp2x then. But after game over when game returns to main menu, sound is repaired again until start of new game. Sometimes this error occurs during game but mostly when selecting aircraft (Sonic wings 2 and 3). I'm using cramfs firmware.
Can anyone please help me to reveal what's wrong here?

 

[Nickmon]

Sound like you have some bad rom dumps, I have not issues with it and my rom sets...

 

[Fishbong]

That´s weird, i had the same problem with a very early version of gngeo when i overclocked too high (>290 MHz, i think).
Maybe you should try some other clockspeeds, you can change the selector script to du this (just open it with an unicode - texteditor like programmers notepad and change the clock frequncy in the script.

 

[Eso Rimmer]

I've installed rage2x and tried some other games with 233MHz and sound is ok, so it probably really was because of 266MHz OC.

 

[phoda]

I would guess the cause is related to the new Z80 core. The MAME DrZ80 version has a similar problem, whereas the Z80 "C" core in the traditional Mame works fine. Since sound is controlled by the Z80 in the NeoGeo system, this may be the problem.

 

[Eso Rimmer]

Hmm, can someone please try Aerofighters 2 or 3 (Sonic wings 2,3) to confirm it's software problem?

 

[phoda]

I did. Aerofighters 2 and 3 have this problem... unfortunately... (I really like both games).

 

[TelcoLou]

I did. Aerofighters 2 and 3 have this problem... unfortunately... (I really like both games).

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Same here.