Several people has told me about this problem.
The Emu works with sound, I can assure that.
Be sure of the following:
1- AdriPSX will not work with older plugins like SPU-Kazz 0.3, etc. It requires SPU plugins that use actual standarts like Pete's, Null2's and Iori's SPUs.
2- Be sure that in CPU options, you have "Disable SYSTEM HUNGER" ON, and the rest of CPU options OFF. "SYSTEM HUNGER" is a switch that enables certain "unstable" features, dsable SOUND (for getting more speed), and also boosts AdriPSX priority in Window system.
3- Please, check silly things like volume, etc
Anyway, wait for last "public" release to be done soon.