Introduction, Upc-166 functional description, Audio down mixer and mono mixer function – Sierra Video UPC-166 User Manual
Page 17: Right, Center, Left surround, And right surround, And down mix right, The resulting stereo pair

Introduction
UPC-166 Functional Description
AES Ch 1
•
•
Embed Ch 1
•
•
AES Ch 9
AES Ch 16
Figure 1-4 Default Embed/De-Embed Audio Routing
Audio Down Mixer and Mono Mixer Function
(See Figure 1-5.) The Audio Down Mixer function provides for the selection
of any five embedded, AES discrete, or analog audio sources serving as Left
(
L
), Right (
R
), Center (
C
), Left Surround (
Ls
), and Right Surround (
Rs
)
individual signals to be multiplexed into a stereo pair (Down Mix Left (
DM-L
)
and Down Mix Right (
DM-R
)). The resulting stereo pair
DM-L
and
DM-R
can in
turn be routed and processed just like any of the other audio sources described
earlier.
Figure 1-5 Audio Mixing Functional Block Diagram with Example Sources
1-13
UPC-166-OM
(V4.0)
Embed Ch 1 - Ch 16
AES Ch 1 - Ch 16
AN-AUD Ch 1- Ch 8
Embedded Ch 1
Ls
Embedded Ch 2
L
AES Ch 6
C
Embedded Ch 4
R
Embedded Ch 5
Rs
DM-L
DM-R
Embedded Audio
AES Audio Out
Group 1/2
Pairs 1-4
•
AES Ch 1
AES Ch 8
Embedded Audio
AES Audio Out
Group 3/4
Pairs 5-8
AES Ch 9
•
Embed Ch 9
•
•
•
•
AES Ch 16
•
•
•
Embed Ch 16
•
•
AES Ch 8
•
•
•
Embed Ch 8