Cobalt Digital COMPASS 9083 HD_SD Frame Sync - Manual (Page 15)

9083-OM (V4.5) 9083 PRODUCT MANUAL 1-11
Introduction
9083 Functional Description
Audio Down Mixer and Mono Mixer Function
(See Figure 1-4.) 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 1-4 Audio Mixing Functional Block Diagram with Example Sources
The Mono Mixer function (Figure 1-5) generates an additional mono-mixed
channel from two selected embedded, AES discrete, or analog input channels
serving as left and right inputs. The resulting mono mix channel
MONO can in
turn be routed and processed just like any of the other audio sources described
earlier.
Figure 1-5 Audio Mono Mix Functional Block Diagram with Example Sources
Tone Generator Function
The 9083 contains four built-in tone generators (Tone Generator 1 thru Tone
Generator 4). Each of the four tone generators can be set to a different
frequency, and are available as audio sources for the embedded or AES audio
outputs.
18 discrete sine wave frequencies are available, ranging from 50 Hz to 16 kHz
(default frequency is 1.0 kHz).
DM-L
Ls
L
C
R
Rs
DM-R
Embedded Ch 1
Embedded Ch 2
AES Ch 6
Embedded Ch 4
Embedded Ch 5
AES Ch 1 - Ch 16
AN-AUD Ch 1- Ch 8
Embed Ch 1 - Ch 16
MONO L
Σ
R
Emb Ch 12
Emb Ch 16
AES Ch 1 - Ch 16
AN-AUD Ch 1- Ch 8
Emb Ch 1 - Ch 16