Why JPCSP cannot decode two music at the same time?

[LI-NA]

Why JPCSP cannot decode two music at the same time in?
It works very slowly when decoding two music.

I use SonicStage to decoding audio files and Media Engine.

My computer - i7 3610QM, GT640M 4GB DDR3
Test file - oimop (Ore no Imouto ga Konna ni Kawaii wake ga Nai Portable)

[montcer9012]

Does your game use At3+ sound files? Remember to use the at3 plugin ir order to JPCSP can decode on the fly those files. More info here:
http://www.emunewz.net/forum/showthread.php?tid=5293

I have read some users reporting that at3 audio files only can be played once at time because is SoundStage the one who make the work; however, the normal at3 files can be played simultaneous. (At least my games does)