Cobalt Digital Inc 3G Fusion 9931-EMDE Product Manual page 24

1
From Internal Bus
>
1-20
Bus Ch 1– Ch 6
Loudness processor provides loudness-processed outputs LP51 - L thru LP51 - Rs,
which are available as source selections for card audio output routing.
To Output Audio
Routing/Controls
Figure 1-9 5.1-Channel Loudness Processor with Example Sources
Tone Generators. The 9931-EMDE contains eight built-in tone generators
of frequencies from 50 Hz to 16 kHz. Each of the eight tone generators can be
routed to the upmixer or directly to card audio outputs.
(Default output is -20 dBFS.)
DashBoard Dual Audio Loudness Meter
Description
Note: This function provides DashBoard loudness metering and is typically fur-
nished with cards licensed for loudness processing. OGCP-9000 Loudness
Meter Option (+LM) is an OGCP-9000 Control Panel option that provides
advanced loudness metering functions such as graphing and statistics. +LM
option is separate and independent of this function; refer to catalog or website
for more information.
This function allows two independent 5.1-channel PCM groups to be routed
to two independent DashBoard loudness meters that provide short-term
loudness measurement in accordance with ITU-R BS.1770-1 – ATSC A/85.
The function can monitor any combination of channels on the card internal
bus, or audio DSP output channels such as upmixed and loudness-processed
channels (channel routing to the meters is independent of any other card
routing and does not affect the channels in any way). The two loudness meters
readily allow pre and post-processed loudness processing comparison when
loudness processing is being performed by the card.
The function provides a configurable short term window for tailoring the
measurement to suit various program material conditions.
9931-EMDE PRODUCT MANUAL
Processing
Input/Output
Select
Processing
Bus Ch 1
L
Bus Ch 2
R
Bus Ch 3
(C)
Bus Ch 4
(LFE)
(LFE)
Bus Ch 5
(Ls)
(Ls)
Bus Ch 6
(Rs)
(Rs)
.
9931-EMDE Functional Description
Preset
Select
Loudness
LP51-L
L
LP51-R
R
Master
LP51-C
Output
(C)
Gain
LP51-LFE
Control
LP51-Ls
LP51-Rs
9931-EMDE-OM (V1.17)