audio-filters aren't kept over spawning new aout
play song, set some preset in equalizer, push forward button to play next song in playlist, now preset is dropped and song is played without preset. in qt4: You need to again activate equalizer, so click on checkbox to turn it off and click again to turn on and then you can again set preset for song. Probably after setting new song to play audio filter "equalizer" is dropped. It is confirmed for win32 and linux, MacOS wasnt tested.