09006: timeplt and clones: Sound mixing issues (and possible missing lowpass filter?)

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
09006	Sound	Trivial	Always	Dec 7, 2024, 19:00	Dec 7, 2024, 19:42

Tester	125scratch	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	Open	OS	Windows 10/11 (64-bit)
Status [?]	Acknowledged			Driver	konami/timeplt.cpp
Version	0.272	Fixed in Version		Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	09006: timeplt and clones: Sound mixing issues (and possible missing lowpass filter?)
Description	In MAME, the explosion sounds are much louder than everything else, on a PCB they are quieter and the music and firing sounds are louder. Also it seems like the explosion sounds use a Scramble-like low-pass filter that's not emulated in MAME.
Steps To Reproduce	Start a game with sound enabled.
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	timeplt and clones

Attached Files