Instruction Manual

9033-OM (V4.0) 9033 PRODUCT MANUAL 1-11
Introduction 9033 Functional Description
The examples in Figure 1-5 show the automatic enable/disable up-mixing
function applied to example selected channels
Emb Ch 1 thru Emb Ch 6. As
shown and described, the processing is contingent upon the signal levels of
the channels selected to carry the new 5.1 upmix relative to the selected
threshold (in this example, -60 dBFS). Note also that this function is applied
after the Audio Routing/Gain Control function. Because all audio inputs pass
through the Audio Routing/Gain Control function before the up mixer, the up
mixer can use embedded, AES discrete, and/or analog audio sources.
Figure 1-5 Up Mix Auto Enable/Bypass with Example Sources
AES Ch 1 – Ch 16
>
From Audio
Routing/Gain
Control
AES Ch 1
AES Ch 2
AES Ch 3
AES Ch 4
AES Ch 5
AES Ch 6
L
R
(C)
(LFE)
(Ls)
(Rs)
L – AES Ch 1
R – AES Ch 2
C – AES Ch 3
LFE – AES Ch 4
Ls – AES Ch 5
Rs – AES Ch 6
To Audio
Routing
With all detected signal levels on
AES Ch 3 – Ch 6 below
threshold, upmixer is active and
overwrites with new 5.1.
Threshold
Detect
5.1 Up Mix
Selected channels AES Ch 1 – Ch 6
are overwritten with the new 5.1
upmix content.
AES Ch 1 – Ch 16
>
From Audio
Routing/Gain
Control
AES Ch 1
AES Ch 2
AES Ch 3
AES Ch 4
AES Ch 5
AES Ch 6
L
R
(C)
(LFE)
(Ls)
(Rs)
To Audio
Routing
Threshold
Detect
5.1 Up Mix
Because the selected channels are
already carrying viable content,
upmixing is bypassed, allowing the
six original AES Ch 1 – Ch 6 to pass
unaffected.
With any detected signal levels
on Emb Ch 3 – Ch 6 above
threshold, upmixer is bypassed.
X
X
X
Note: In either case shown here, the unselected
channels (in this example, Emb Ch 7 thru Ch
16) are not involved in this process and always
pass unaffected.
- 20 dBFS
- 60 dBFS
Above Threshold
(Bypass)
C
L
F
E
L
s
R
s
- 20 dBFS
- 60 dBFS
Below Threshold
(Overwrite)
C
L
F
E
L
s
R
s