PSG channels not fading correctly

[brokenps2]

When playing Super Mario Advance 4, I noticed that the PSG channels seem to not fade out and just continue playing at full volume as long as their duration is set for.

I'm using arch linux 6.7.6 & mGBA 0.10.3 SDL version.

[endrift]

Are there any tracks you can point to for comparison against, say, Game Boy Player footage? This is kind of vague.

[brokenps2]

Yeah, it was most noticeable in the Mario Bros minigame, especially the coin falling sound (after enemy is killed)

This is what it sounds like for me
This is a longplay of the the minigame, you can hear it at 0:43

[endrift]

Wow, That's definitely not happening for me in dev. Let me check 0.10.3.

[endrift]

Scratch that, it does happen in 0.10.3...in Super Mario Advance 4. I was trying a different version of the Mario Bros. minigame where it doesn't happen (in Mario & Luigi). I also confirmed that it works as expected on original hardware.

[endrift]

Regression from c8f4d4a