Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
07181 Sound Minor Always Dec 22, 2018, 15:34 29 days ago
Tester Kale View Status Public Platform MAME (Official Binary)
Assigned To Resolution Open OS Windows 10 (64-bit)
Status [?] Driver dec0.cpp
Version 0.204 Fixed in Version Build 64-bit
Summary 07181: midresb, midresbj: [possible] Erratic sound
Description As much as I love the idea of having a Midnight Resistance with Hippodrome/Fighting Fantasy music sampler, it sounds totally odd and off key to me, needs checking out on real HW.
Steps To Reproduce Play the game or watch this YT video:
Additional Information
Flags Possible
Regression Version
Affected Sets / Systems midresb, midresbj
Attached Files
 
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Notes
4
User avatar
No.15942
Fujix
Administrator
Dec 22, 2018, 18:51
Arcade PCB captures:
https://www.nicovideo.jp/watch/sm5330603
https://www.nicovideo.jp/watch/sm5331033
User avatar
No.15944
haynor666
Tester
31 days ago
Do we know that bootleg sounds should be the same as in original versions?
User avatar
No.15946
AJR
Developer
31 days ago
haynor666 brings up a relevant point: you can't assume that a bootleg running on different hardware plays music at the most appropriate-sounding pitch. To use another bootleg from dec0.cpp as an example, Automat's sound program is largely copied from Section Z, yet a PCB recording of Automat had the OPN music playing at a different pitch than in the Capcom game.

This question could probably be settled best by measuring clocks for the sound chips on this bootleg, or one of the Robocop/Dragon Ninja bootlegs that run on similar oversized two-board stacks (though some elements of this hardware are known to be variably populated).
User avatar
No.15950
Kale
Developer
30 days ago
edited on: 30 days ago
What I wonder if there isn't something that actually modifies the commands in the 68k-to-z80 comms to be more heardable, like an XOR.
Setup can be easily guessed with a bootleg PCB recording in case this is true.
Unless these weren't supposed to be played with sound at all lol