Datasat AP20 - B Chain Alignment using 1;3 Octave EQ

AP20 Installation and Operating Guide Page 37
AP20 Installation & Operating Guide Document # 9301H39200 Ver. 1.25
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Table 8: Default Channel Configuration
Channel Default 6-channel names Default 8-channel names
1 L L
2 R R
3 C C
4 LFE LFE
5 Ls Lss
6 Rs Rss
7 - Lrs
8 - Rrs
9 -
10 -
11 -
12 -
13 -
14 -
15 -
16 -
2.9.5 Hearing Impaired Output
The first 3 input channels (L,R, and C) are mixed to create the Hearing Impaired output channel. The
hearing impaired mix is 50% Center channel, 25% Left and 25% Right channels.
2.9.6 Verify Channel Assignments in Auditorium
On the AP20, select a channel and turn on Pink Noise. In the auditorium, verify that the Pink Noise
output is coming from the correct loudspeaker(s). Do this for all channels. For details, see Audio
Levels, page 94.
Menu > Formats > Channel Profile > Audio Levels
 Select a channel.
 Turn on Pink Noise.
 In auditorium, listen to confirm audio is coming from correct speaker(s).
 Repeat for all channels.
2.10 B Chain Alignment using 1/3 Octave EQ
Adjust the alignment of each individual channel. There are various approaches to B-chain alignment, and
the procedure presented below is offered as an example, not a requirement. The intent is to show the
AP20 functions that are relevant to B-chain alignment.