MAMEWorld Forums - Hardware - Re: Arkanoid high pitch sound

> Hi folks! (sorry my bad english)..
> Maybe someone can help me: I have two Arkanoid pcbs, one "tayto" bootleg, and another
> "Beta" bootleg... the "tayto" bootleg has the normal sound pitch like the original
> Taito pcb, but the Beta bootleg has the sound pitch too high...is there any way to
> fix this on PCB (make beta bootleg sound pitch normal)??

Here's a clue from the MAME source code:

Yamaha YM2149F software-controlled sound generator (SSG). Clock input 1.5MHz (12/8)

I guess if the clock is too fast you'd have the music playing too fast or at a higher pitch, or both.

It's not uncommon for bootleg PCBs to have different or missing sounds altogether. My Bombjack PCB only has two AY chips and plays Lady Madonna with no bassline

I'm pretty sure it's just because it was cheaper to manufacture that way.
Arkanoid is an MCU protected game and the sound playing at the wrong pitch may be an inevitable side effect of how the bootleggers circumvented the protection.

S