it's possible the problem's related to r3088 and its volume handling change.
i already reported that a while ago, but it looks like gid didn't figure out how to fix it yet.
Quote:Improved volume handling in sceAtrac:
- added check on valid volume values
- negative volume means no channel volume change
- SRCChannel has another special volume handling
i already reported that a while ago, but it looks like gid didn't figure out how to fix it yet.