08764: speedatk, daifugo: Sound pitch is too high

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
08764	Sound	Minor	Always	7 days ago	6 days ago

Tester	sasuke	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	Open	OS	Windows 10/11 (64-bit)
Status [?]	Confirmed			Driver	seta/speedatk.cpp
Version	0.258	Fixed in Version		Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	08764: speedatk, daifugo: Sound pitch is too high
Description	The pitch of all sounds is too high. The correct pitch may be aysnd clock set to 50% from slider settings.
Steps To Reproduce
Additional Information	Speed Attack https://twitter.com/BEEP_SHOP/status/1385425741236432897 Daifugo has no video, but same as Speed Attack, the pitch of the actual sound is 50% lower than MAME.
Github Commit

Flags
Regression Version
Affected Sets / Systems	speedatk, daifugo

Attached Files

No.21756 Tafoid Administrator 7 days ago	As I checked the video, it would also appear the maincpu also is higher than it needs be, probably by the same 50% (half) of current speed in MAME (at least for Speed Attack).
No.21757 sasuke Tester 6 days ago edited on: 5 days ago	Yes, CPU clock is 50% speed of the gameplay is almost the same. But the title demo is still fast. From the speed difference in the test pattern at boot, it appears that writing to VRAM is slower?