2013 Toyota Corolla Owners Manual - Page 715

1. AUDIO SYSTEM OPERATION DSP CONTROL With JBL sound system 1 2 Press the "AUDIO" button. Touch or . USB memory/iPod and Bluetooth® audio modes 4 Touch the desired screen button. AUTOMATIC SOUND LEVELIZER (ASL) The system adjusts to the optimum volume and tone quality according to vehicle speed to compensate for increased vehicle noise. Without JBL sound system DSP control can be set from the "Options" screen. Touch "Options" and then touch "Sound Settings" on the next screen. Modes other than USB memory/iPod and Bluetooth® audio 1 2 1 2 Touch "High", "Mid" or "Low" of "Automatic Sound Levelizer". Touch "OK". With JBL sound system Touch "On" of "Automatic Sound Levelizer". Touch "OK". 3 Touch the "DSP" tab to display this screen. Without JBL sound system SURROUND FUNCTION (IF EQUIPPED) 1 2 Touch "On" of "Surround". Touch "OK". 104