06891: darkseal: There's audio stuttering ("pops") in some tracks.

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
06891	Sound	Minor	Always	Feb 26, 2018, 19:32	28 days ago

Tester	TesterNes	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	Open	OS	Windows Vista/7/8 (64-bit)
Status [?]	Acknowledged			Driver	darkseal.cpp
Version	0.194	Fixed in Version		Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	06891: darkseal: There's audio stuttering ("pops") in some tracks.
Description	There are audio tracks with sound stuttering resulting in a multiples "pops" sounds. You can hear it easily in the track "Credit -Legend", the sequence after the 1 Player button is pushed at the beginning of the game.
Steps To Reproduce
Additional Information	It seems that all Mame versions have this issue.
Github Commit

Flags
Regression Version
Affected Sets / Systems	darkseal

Attached Files	Original Pcb.mp3 (208,560 bytes) Feb 27, 2018, 10:36 Uploaded by TesterNes In the original, the sound is clear and a little bit slower.
Attached Files	Mame.mp3 (229,876 bytes) Feb 27, 2018, 10:37 Uploaded by TesterNes In the Mame version, the sound stutters with "pops" and it seems a little bit speed up.

No.14786 Tafoid Administrator Feb 26, 2018, 23:23	It is so low and barely audible I'm not convinced the original PCB output didn't do the same thing - just you never hear.
No.14789 TesterNes Tester Feb 27, 2018, 09:59	You can compare it with Final burn alpha emulation, Original soundtrack or the real pcb like I did. This is a mame issue.
No.18599 Osso Developer 30 days ago	FWIW the crackles are produced by the "oki2". It can be checked by reducing its volume to 0 via sliders.
No.18600 Haze Senior Tester 30 days ago	to my ears they're there in the original recording too, just mixed in at a lower level, I think it's meant to be percussion?