[I-Chan]

have you tried messing with the irq settings on eternal? Probably some sound interruption must be emulated for that to work. How is eternal enabled?

 

[I-Chan]

well, not all xD . Try one at a time, and if still doesn't work, then in groups of two or the three. Try audio aout spuasync, in smooth mode.

 

[I-Chan]

Well, PSXeven has had more recent release than ePSXe. Also, you might want to try PCSX. An older release doesn't mean it has the same bugs