07997: assault, assaultj: Tank engine sound stops after less than 1 second after game starts

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
07997	Sound	Minor	Always	Jun 3, 2021, 19:33	Jun 5, 2021, 19:48

Tester	Steve Coomber	View Status	Public	Platform	MAME (Official Binary)
Assigned To	hap	Resolution	Fixed	OS	Windows 10 (64-bit)
Status [?]	Resolved			Driver	namco/namcos2.cpp
Version	0.232	Fixed in Version	0.233	Build	64-bit
		Fixed in Git Commit	80f1aec	Github Pull Request #

Summary	07997: assault, assaultj: Tank engine sound stops after less than 1 second after game starts
Description	Tank engine sound stops after less than 1 second after game starts on latest MAME 0.232 release and on latest available version on github. The tank engine sound works OK on MAME 0.231 so regression version is MAME 0.232.
Steps To Reproduce	1. Launch MAME 0.232 2. Insert coins and start game 3. Engine sound will work very briefly then stop
Additional Information
Github Commit

Flags
Regression Version	0.232
Affected Sets / Systems	assault, assaultj

Attached Files

No.18920 Tafoid Administrator Jun 3, 2021, 21:29	Breakage traced to some pretty high tier fixing of long standing bugs. Might need to reinvestigate the fix. May 20, 2021 "c140.cpp: add sample status readback, fixes engine sound in suzuka 8 hours, final lap and four trax game series" https://github.com/mamedev/mame/commit/041c296dec8427e44faea876113a95b405d1734e