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[Regression][Genesis] Some sound channels are missing #1

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DrUm78 opened this issue Apr 3, 2021 · 1 comment
Closed

[Regression][Genesis] Some sound channels are missing #1

DrUm78 opened this issue Apr 3, 2021 · 1 comment
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@DrUm78
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DrUm78 commented Apr 3, 2021

Some sound channels are missing in Genesis games (seems fine in Sega CD or 32X though) and that's very noticeable in games like Streets of Rage 1, Thunder Force 3. To make sure this is a bug, I forced those audio settings in the game cfg file (same config than on my RG350P):

Enable sound = 1
Sound Quality = 44100Hz mono
Emulate Z80 = 1
Emulate YM2612 (FM) = 1
Disable YM2612 SSG-EG = 0
Emulate SN76496 (PSG) = 1
Emulate YM2413 (FM) = 1

Tested on firmware 2.1.0 and PicoDrive 1.98 (early build). This issue does not happen with default 1.93 version.

Expected behavior:
All sound channels should be present.

Steps to reproduce

  1. Launch Streets of Rage 1
  2. Enter the option menu from the title screen
  3. Launch music of stage 5 for instance and compare with default PicoDrive 1.93
  4. You can notice that some instruments/parts are missing
@DrUm78 DrUm78 changed the title [Genesis] Some sound channels are missing [Regression][Genesis] Some sound channels are missing Apr 3, 2021
@Michel-FK Michel-FK added the bug Something isn't working label Apr 30, 2021
@DrUm78
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DrUm78 commented May 2, 2021

Fixed in commit 6914fac. Closed.

@DrUm78 DrUm78 closed this as completed May 2, 2021
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