Cobalt Digital COMPASS 9086 Embedded Audio Loudness Processor - Manual (Page 14)

1
9086 Functional Description
1-10 9086-SD PRODUCT MANUAL 9086-OM (V4.3)
Loudness Processor Function
The loudness processor function receivesa stereo pair from the Audio
Routing/Gain Control function (which consists of routed output destination
channels Emb Out Ch 1 thru Ch 16) and performs loudness processing on the
selected channels. A loudness processing profile best suited for the program
material can be selected from several loudness processing presets.
Loudness Processing allows selected channels to be applied to the processor
Left (
L ) and Right ( R ) inputs. Whenever the loudness processor is active
(selected by a user control), it overwrites the stereo pair with the new stereo
loudness processed signals.
The example in Figure 1-5 shows routing of post-routing embedded output
channels Emb Out Ch 1 and Ch 2 fed through the loudness processor. When
any of the card audio input channels are routed to any combination of
embedded channel destinations, these channels in turn can be routed through
the loudness processor before being sent from the card. A master output gain
control is provided which allows fine adjustment of the overall output level.
Figure 1-5 Stereo Loudness Processor with Example Sources
Emb Ch 1
– Ch 16
>
From Audio
Routing/Gain
Control
Emb Out Ch 1
L
R
To Audio
Embed
Loudness
Processing
Selected channels Emb Ch 1 / Ch 2 are overwritten with the
loudness processed content.
Processing
Preset
Select
Master
Output
Gain
Control
L
R
Input/Output
Select
Emb Out Ch 2