09120: shadowld, youkaidk1, youkaidk2: Emulation music has missing sounds if compared with the arcade

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
09120	Sound	Minor	Always	Feb 20, 2025, 06:49	Feb 28, 2025, 03:01

Tester	Augusto	View Status	Public	Platform	MAME (Unofficial Binary)
Assigned To		Resolution	Invalid report	OS	Linux (64-bit)
Status [?]	Closed			Driver	namco/namcos1.cpp
Version	0.274	Fixed in Version		Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	09120: shadowld, youkaidk1, youkaidk2: Emulation music has missing sounds if compared with the arcade
Description	Hello. Thanks for reading my topic. Please compare sound in both videos below. First video is MAME 0.274 in 8:25 and second video is arcade in 2:25 being an mermaid's dance music. Emulation music has missing sounds if compared with the arcade. MAME 0.274 Arcade video capture Other detail is in the arcade video capture the music has an more high volume than sound fx and so MAME sound volume is unbalanced. In MAME player walking sound fx is much more high than the arcade. Have an nice week.
Steps To Reproduce
Additional Information
Github Commit

Flags	Verified with Original
Regression Version
Affected Sets / Systems	shadowld, youkaidk1, youkaidk2

Attached Files

No.23020 hap Developer Feb 20, 2025, 14:07	I didn't try an older version of MAME, but I checked another emulation video on Youtube from a couple years ago, and the sfx is also missing. So if it's a regression, it's not recent.
No.23022 Augusto Tester Feb 21, 2025, 00:30	Have some videos on youtube with wrong sound when the player character goes to shop in begin of stage 2. Possibly an older version of MAME with wrong sound emulation. I has played that game in MAME since before 2010 and the music in stage 3 mermaid's dance always had missing sounds.
No.23037 Augusto Tester Feb 24, 2025, 00:40	Acknowledged ? The first video MAME in 8:25 and second video in 2:25 show clearly emulation bug in music. Second video is from an arcade PCB. See video description in YT. Need more informarion ?
No.23038 JimCarlTay Tester Feb 24, 2025, 03:21	It's because we can't exactly confirm your issue.
No.23039 Fujix Administrator Feb 24, 2025, 03:43 edited on: Feb 24, 2025, 03:44	In this real arcade play, those sounds are NOT played. (23:24)
No.23040 Augusto Tester Feb 24, 2025, 03:47	What ? Only compare the first video in time 8:25 with the second video in 2:25. The first video is MAME 0.274 emulation video captured using OBS Studio and the second video is captured from an arcade PCB. First video being MAME in mermaid's dance has missing sounds. That mermaid's music never was correctly emulated since MAME versions from before 2010 to current build. That bug is easy to be noticed. The second video is really an arcade PCB. That's an correct emulation bug.
No.23041 Fujix Administrator Feb 24, 2025, 03:49	Here's another real video. No sounds either: (6:18) https://www.nicovideo.jp/watch/sm226336?from=6.18
No.23042 Augusto Tester Feb 24, 2025, 04:21	Thanks Fujix for your replies and sharing that site. https://www.nicovideo.jp is an good site for arcades. language is only japanese. MAME has 2 japanese sets for that game. I sent an email to YT video creator about that arcade video capture. Need wait an reply.
No.23062 Fujix Administrator Feb 28, 2025, 03:01 edited on: Feb 28, 2025, 03:02	You can play those sounds by pressing the 9 key (service). Closing.