SPU2-X SVN r3207 is released. SPU2-X is a pcsx2 sound plugin for PCSX2.

SPU2-X SVN Changelog:
r3205
SPU2-X: Fix a small bug with voice volume in linear interpolation mode.
r3206
SPU2-X: Fixed Core1 writeback areas; probably fixes quite a few things.

Details: (0x1800 to 0x1fff were being mis-written to 0x2000->0x2800, roughly).
r3207
SPU2-X: Woops, missed a writeback.

Download: SPU2-X SVN r3207
Source:Here