04681: gberetb: (bootleg version) music/sound effects: speed/pitch too high

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
04681	Sound	Minor	Always	Feb 16, 2012, 13:27	Feb 16, 2012, 14:32

Tester	pri88	View Status	Public	Platform	MAMEUI
Assigned To		Resolution	Invalid report	OS	Windows XP (32-bit)
Status [?]	Closed			Driver	konami/gberet.cpp
Version	0.145	Fixed in Version		Build	Normal
		Fixed in Git Commit		Github Pull Request #

Summary	04681: gberetb: (bootleg version) music/sound effects: speed/pitch too high
Description	the music/sound effects in the bootleg version of green beret are playing too fast/pitched too high. the other versions (green beret, and rush'n attack) are ok. bootleg version: Z80 5.000000 MHz SN76489A 1.666666 MHz 240x224 60.000000 Hz green beret, and rush'n attack: Z80 3.072000 MHz SN76489A 1.536000 MHz 240x224 60.600000 Hz
Steps To Reproduce
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	gberetb

Attached Files

No.08207 hap Developer Feb 16, 2012, 14:31	The bootleg is on a custom PCB with 20MHz XTAL, that means the chips run on a frequency dividable by that. The most likely clockspeeds would be: Z80: 20/4=5MHz or 20/6=3.33MHz sound: 20/12=1.66MHz or 20/16=1.25MHz