08002: dietgo and clones: Volume of sampled sounds is too low

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
08002	Sound	Minor	Always	Jun 4, 2021, 22:33	Jun 4, 2021, 23:20

Tester	ICEknight	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	Open	OS	Windows 10 (64-bit)
Status [?]	Acknowledged			Driver	dataeast/dietgo.cpp
Version	0.232	Fixed in Version		Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	08002: dietgo and clones: Volume of sampled sounds is too low
Description	Voices and other sampled sounds don't stand out from the music as much as they do on real hardware, as seen on this recording of a real PCB:
Steps To Reproduce	Just start a game in the default stage and hit some enemies around. Drums are also too drowned by the rest of the music.
Additional Information
Github Commit

Flags	Verified with Original
Regression Version
Affected Sets / Systems	dietgo and clones

Attached Files

No.18928 Tafoid Administrator Jun 4, 2021, 22:46 edited on: Jun 4, 2021, 22:47	Could you see if you can adjust the levels in the slider menu (TAB -> Slider Controls) to find some accurate to recording? I'm acknowledging this as you have a pcb recording which can be used as reference.
No.18929 ICEknight Tester Jun 4, 2021, 23:20 edited on: Jun 4, 2021, 23:32	Sounds more accurate to me when "OKI MSM6295 ADPCM ':oki' Ch.0" is just set all the way up to 2.00 (maybe it's still a bit too low?), though I guess there have to be more scientific ways of assigning volume levels to the sound chips than doing it by ear. Would finding pics of the board help getting the actual proper values for it?