08108: truxton: Music sounds different from PCB

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
08108	Sound	Minor	Always	Oct 13, 2021, 06:25	Jul 8, 2022, 16:11

Tester	Alex7	View Status	Public	Platform	MAME (Official Binary)
Assigned To	aaron	Resolution	Fixed	OS	Windows 10/11 (64-bit)
Status [?]	Resolved			Driver	toaplan/toaplan1.cpp
Version	0.236	Fixed in Version	0.246	Build	64-bit
		Fixed in Git Commit	4384558	Github Pull Request #

Summary	08108: truxton: Music sounds different from PCB
Description	You can notice right at stage 1 the music sounds off on mame when compared to PCB &list=PLD9B947EBFB401762&index=2 i recorded a wav file to show how the music sounds on MAME https://mega.nz/file/QZwzyAKY#sD9ySFfrv4phxu7kI2c0cP8FdJI_fLTaXyVzKIrfkxY
Steps To Reproduce	play the game like normal
Additional Information
Github Commit

Flags	Verified with Original
Regression Version	0.231
Affected Sets / Systems	truxton

Attached Files

No.19337 hap Developer Oct 13, 2021, 12:37 edited on: Oct 13, 2021, 12:38	Can you explain further? The first thing I notice was the off-beat bassdrum in the music, but if I listen closely, it's also on the PCB video. My ears also say the music on the PCB video is more tinny, that can be due to filtering. And it looks like the PCB video is sped up to 60hz, so it's faster than it should be. Either ther person's video software, or youtube, converted the video to 60hz. Truxton framerate is 57.6hz.
No.19340 Alex7 Tester Oct 13, 2021, 21:45	i did further testing and found the version where it started to happen i made more wav recordings hopefully you will notice the change better MAME 230 truxton continue and stage 1 music https://mega.nz/file/oI4gVB6L#9eMLI5ztlwrRrkezsfG85Gh5oaMfuXpDtMRnn_hn9TQ MAME 231 truxton continue and stage 1 music (BUGGED) https://mega.nz/file/xMh2Ub7R#MOURWEGSE_-3HQrQ0jlUcaC2PGzqq4QR41PM1tYrIQs
No.19341 Alex7 Tester Oct 13, 2021, 21:50	ho another thing dont listen on the MEGA player it sucks it bugs the music more download it and play it on the computer player
No.19344 hap Developer Oct 14, 2021, 10:04	Ok I can hear it, one of the instruments (or volume of one of the channels) is too loud compared to PCB. In the stage 1 tune it is part of the chord, instead of 3 notes being similar volume, one of them is too loud. more pcb vids:
No.19345 Alex7 Tester Oct 14, 2021, 23:33	i'm pretty sure this affect other games using the same sound chip i think i remember
No.20360 aaron Developer Jul 6, 2022, 08:22	Finally tracked this down, was missing a right shift in certain configurations of operators. Thanks for the detailed report. Took me a while to isolate the issue, but is obvious now that I see it. I've updated my ymfm library, and will push accumulated changes to MAME soon.
No.20367 Augusto Tester Jul 7, 2022, 15:43	Thanks very much. Have an nice week.
No.20369 Alex7 Tester Jul 8, 2022, 14:37	Terrific! glad to know the issue is resolved and i helped in some way thanks!