I tried this fix in my Galaxy S 3 phone as almost all my games had audio glitches
I can confirm that this patch works !!
I used my earphones to listen more carefully..
There are 2 kinds of "sounds" in psx games. The first one is the soundrack and the other one is the commentary/in game sound.
The only "problem" now is that i can hear the soundrack with my left earphone but the in game commentary with both right and left earphones !!! (in mono though).
So..can you make the soundrack available to both earphones?? This would be great..