AP25 Installation and Operating Guide
Page 39
AP25 Installation & Operating Guide
Document # 9301H79500 Ver. 1.00
2.10.2 Perform the EQ
If using Dirac Live, please refer to the Dirac Live Theater Setup manual. For an overview, see
Dirac Live® to Tune the Auditorium
The AP25 contains a full suite of 1/3 Octave EQ filters that are “traditional” cinema processor filters. If
using AP25 1/3 Octave EQ, complete the following steps.
Menu > Formats > Audio EQ Setup > Third Octave EQ
Figure 17. Third Octave EQ Screen
NOTE:
Touching a green bar in the EQ section (lower panel) will select that frequency
and allow you to adjust the dB level of that frequency by rotating the fader knob. (On the
laptop running AP25 Proxy, use the up/down arrow keys.)
Use a single or multiplex microphone arrangement in the auditorium. A typical scenario is
four mics feeding into a multiplexer.
Use the RTA on the AP25 (Third Octave EQ screen) with the mic or multiplexer plugged into
the AP25 rear panel, or use a separate RTA (in the auditorium) with the mic or multiplexer
plugged into the RTA, which plugs into your laptop.
Using a separate RTA in the auditorium avoids the necessity of running cables through the
projection booth port and down into the theater. Use a third-party VNC software application
on your laptop to establish a wireless connection with the AP25, and perform the EQ as
described in the steps below.
If the microphone is connected to the AP25, 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.
4. Examine the response on the RTA (whichever RTA the microphone is attached to).
