The bgm volume is extremely loud on the most recent ppsspp version, i can't hear the SFX on many games because that. ex Megaman MHX, DBZ Shin budokai 2. 
The BGM volume is equivalent to my pc volume be at 50% but my volume is 20% that means is about twice loud as it should be
The BGM volume is equivalent to my pc volume be at 50% but my volume is 20% that means is about twice loud as it should be