09336: undrfire and clones: vibrato sound during the credits

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
09336	Sound	Minor	Always	9 days ago	8 days ago

Tester	yoshi200213	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	Invalid report	OS	Windows (x64)
Status [?]	Closed			Driver	taito/undrfire.cpp
Version	0.283	Fixed in Version		Build	x64
		Fixed in Git Commit		Github Pull Request #

Summary	09336: undrfire and clones: vibrato sound during the credits
Description	hello the video game under fire suffer from vibrato sound in the music during the credits heres a video of the problem ?si=fPFd41Ez7N4mCaUA minute 27:49 heres the ost: ?si=l0jMMikf5oK9csVz
Steps To Reproduce	start the game complete the game see the credits vibrato in the music
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	undrfire and clones

Attached Files

No.23929 hap Developer 8 days ago	Isn't that just a recording of an old version of MAME?
No.23930 yoshi200213 Tester 8 days ago	yes but it happens in the last version of mame
No.23931 hap Developer 8 days ago	I mean the 9 year old OST video :D Can you tell that it's a PCB recording? OST on youtube aren't recommended as proof that there's a bug with the music.
No.23932 yoshi200213 Tester 8 days ago	yes is a pcb recording.
No.23933 yoshi200213 Tester 8 days ago	also theres no vibrato in old versions of mame like the 2020 versions.
No.23934 hap Developer 8 days ago	I'd say it's more likely an emulator recording, MAME or M1 (M1 app uses MAME's sound emulation). I assume it's the DSP which wasn't emulated yet, the song sounds much flatter on that recording than on current MAME. Not just the missing vibrato on the chords.
No.23935 neguma Tester 8 days ago	The Taito Sound Team sometimes arranged original PCB songs when compiling them into soundtracks, so this issue may be part of that process. For example, in “Chase Bombers,” there are even songs with tempo changes and different melodies. For reference, I've linked a gameplay video of the actual arcade cabinet, though the sound might be unclear for determining if vibrato is present. ?si=wbr6kHoQFzE7j_5L&t=1436 Since the composer is active on Twitter(@karu_ah_yui), asking them directly might be an option.
No.23936 hap Developer 8 days ago	Thanks for the arcade cab link, I did a search yesterday and only found emulator footage. It has the vibrato effect... The main reason OST's aren't recommended when referencing original hw, is because almost all the ones on youtube are emulator recordings (eg. .vgm player, or probably M1 in this case). And yes, even with official OST cd's it's not unheard of that the people mixing the soundtrack made changes.