06871: all games in twinkle.cpp: Offsync in all songs in beatmania IIDX

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
06871	Gameplay	Major	Always	Feb 9, 2018, 09:03	Oct 12, 2020, 07:27

Tester	launcherEXE	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	Fixed	OS	Windows 10 (64-bit)
Status [?]	Resolved			Driver	konami/twinkle.cpp
Version	0.194	Fixed in Version	0.218	Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	06871: all games in twinkle.cpp: Offsync in all songs in beatmania IIDX
Description	Notes in songs start to drifting away and in the middle of song they are completely offbeat.
Steps To Reproduce	Select and play any song
Additional Information	Possibly, this occurs because IIDX uses refresh rate 59.94 Hz (as seen here ) for syncing notes, while in MAME refresh rate is 60.00 Hz.
Github Commit

Flags
Regression Version
Affected Sets / Systems	all games in twinkle.cpp

Attached Files

No.14743 B2K24 Senior Tester Feb 13, 2018, 05:57	Are you able to show video proof of the issues that you're describing? Although I'm pretty terrible at playing these types of games, I'm not seeing the syncing issues here on my end.
No.14756 Haze Senior Tester Feb 17, 2018, 11:00	It's been widely reported. I think they should be demoted to not working to be honest, the sync issue, along with the general instability others have reported means that they don't really work as intended at all, and the promotion to working state was probably premature.
No.17317 MetalGod Senior Tester Jan 5, 2020, 13:11	It seems this will be fixed in next mame release, 0.218
No.18054 launcherEXE Tester Oct 12, 2020, 07:27	You can close this issue, as it was resolved.