AP20 Installation and Operating Guide Page 38AP20 Installation & Operating Guide Document # 9301H39200 Ver. 1.22.10.2 Perform the EQIf using Dirac Live, please refer to the Dirac Live Theater Setup manual. For an overview, see X UsingDirac Live® to Tune the AuditoriumX, page X 42X.The AP20 contains a full suite of 1/3 Octave EQ filters that are “traditional” cinema processor filters. Ifusing AP20 1/3 Octave EQ, complete the following steps.Menu > Formats > Audio EQ Setup > Third Octave EQFigure 17. Third Octave EQ ScreenNOTE: Touching a green bar in the EQ section (lower panel) will select that frequencyand allow you to adjust the dB level of that frequency by rotating the fader knob. (On thelaptop running AP20 Proxy, use the up/down arrow keys.) Use a single or multiplex microphone arrangement in the auditorium. A typical scenario isfour mics feeding into a multiplexer. Use the RTA on the AP20 (Third Octave EQ screen) with the mic or multiplexer plugged intothe AP20 rear panel, or use a separate RTA (in the auditorium) with the mic or multiplexerplugged into the RTA, which plugs into your laptop.Using a separate RTA in the auditorium avoids the necessity of running cables through theprojection booth port and down into the theater. Use a third-party VNC software applicationon your laptop to establish a wireless connection with the AP20, and perform the EQ asdescribed in the steps below. If the microphone is connected to the AP20, select Input Mic in the Third Octave EQ screen.If the microphone is connected to the RTA in the auditorium, select Input LineIn.1. Select a channel to start with (for example: the L channel).2. Turn ON Pink Noise.3. Turn ON 1/3 Octave EQ.