i manually decoded the voice from the ISO and put it back into tmp , it works okay .
Notice : the wav sample rate has to be 88200 Hz Mono 16 bit for sound working properly
cvn-sym.iso\PSP_GAME\USRDIR\GAMEDATA\SOUND\VOI_EB
Notice : the wav sample rate has to be 88200 Hz Mono 16 bit for sound working properly
cvn-sym.iso\PSP_GAME\USRDIR\GAMEDATA\SOUND\VOI_EB