00382: botanic: [possible] When you eat a leaf, you hear a scratchy sound.

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
00382	Sound	Minor	Have not tried	Jan 29, 2008, 06:44	Oct 18, 2021, 20:37

Tester	Pi	View Status	Public	Platform
Assigned To		Resolution	Open	OS
Status [?]	Acknowledged			Driver	valadon/bagman.cpp
Version	0.80u1	Fixed in Version		Build
		Fixed in Git Commit		Github Pull Request #

Summary	00382: botanic: [possible] When you eat a leaf, you hear a scratchy sound.
Description	When you eat a leaf, you hear a scratchy sound. It's supposed to be like a "ping" with different random tones each time. Sometimes after a reset, the first game you start might randomly produce the correct sound once or twice, then you get the scratchy sound. Follow-up by RansAckeR in 0.120u2: correct sound is sometimes being played even without a reset.
Steps To Reproduce
Additional Information
Github Commit

Flags	Possible
Regression Version
Affected Sets / Systems	botanic

Attached Files

No.19302 AJR Developer Sep 30, 2021, 03:10	The noise appears to be a programmed effect on one AY-3-8910 channel. It is generated by the subroutine at 028B in the Z80 program. The "ping" tone effect might perhaps be a function of analog sound mixing. Commit edb4c450a3a84aa9c97ae0764502241a22133228 removes some glitchy interference between this noise and music playing on the other PSG.
No.19305 Haze Senior Tester Oct 4, 2021, 18:31 edited on: Oct 4, 2021, 18:32	also of note re: botanic2 the 5110 isn't unused as the source mentions near the GAME entry, it's used for the 'eat' effect on that set, and also when you activate the special move. that set also fails when you reach level 2, you move in slow motion, I have a feeling it's protected like bagman? maybe there are other undumped sets with different sound again.
No.19334 MetalGod Senior Tester Oct 10, 2021, 17:05	According to mameinfo, this is fixed in 0.237 GIT, but I don't know which pull request made it: - bagman.cpp . Correct mapping for PSGs and added watchdog timer. Fixes a scratchy sound in Botanic when you eat a leaf. It's supposed to be like a "ping" with different random tones each time. Sometimes after a reset, the first game you start might randomly produce the correct sound once or twice, then you get the scratchy sound. This noise appears to be a programmed effect on one AY-3-8910 channel. It is generated by the subroutine at 028B in the Z80 program. The "ping" tone effect might perhaps be a function of analog sound mixing. The commit removes some glitchy interference between this noise and music playing on the other PSG.
No.19360 MetalGod Senior Tester Oct 17, 2021, 12:32	Fixed in this commit: https://github.com/mamedev/mame/commit/edb4c450a3a84aa9c97ae0764502241a22133228
No.19361 AJR Developer Oct 18, 2021, 17:04	Marking this as unresolved since MAMEinfo's report of this being fixed is just copying comments from here. We need a recording taken from an original PCB (one with two AY-3-8910s) to determine how eating a leaf should really sound.