THOMSON Grass Valley KAM-HD-MULTI, Инструкция по эксплуатации

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KAM-HD-MULTI—Instruction Manual 21
Configuration and Adjustments
A control is provided on the AES Outputs web page for enabling or dis-
abling the control bits in an AES signal called the AES C/U/V Bit Pass
Through (
AES Outputs Web Page on page 81 ). These bits may be generated
locally at the AES output of the module (Pass Through disabled) or taken
from the AES stream coming from an audio input or demultiplexed from
video (Pass Through enabled).
As shown in the Audio Capabilities Summary in Table 2 on page 20 ,
enabling CUVZ pass through to preserve the original data is only per-
mitted when audio is synchronous with the input video. Asynchronous
sources (such as Dolby E and non-audio data) should have this control dis-
abled. If the bits are becoming corrupted, this control can be used to diag-
nose whether the corruption is occurring before or after the
KAM-HD-MULTI module.
Audio Paths
The main audio paths through the module are explained below and illus-
trated in the Functional View in
Figure 11 on page 22 . Refer to Table 2 for
an overview of audio types and how they can be utilized in these paths.
Input Embedded Audio
The embedded audio present in the video input stream can be passed to the
output of the module unchanged.
Demuxed AES Audio Streams G1.S1-G4.S2
The eight demuxed audio streams, labeled
Demuxed AES Streams G1.S1-G4.S4
in the Functional View ( Figure 11 on page 22 ), are sent directly to the AES
output connectors, bypassing all timing and processing. They are selectable
as AES outputs (depending on module configuration) on the AES Outputs
web page identified as
Demuxed Stream 1-8
, colored with a light blue back-
ground to match the corresponding path on the Functional View diagram.
Delayed Bypassed Audio Streams 1-8
Eight audio streams, either demuxed audio streams from the video input
and/or the external AES audio inputs, can be selected as inputs on the
Audio Select web page to pass through the audio synchronizing circuitry
and be adjusted on the Audio Sync web page. These audio streams are
identified as
Delayed and Bypassed Stream 1-8
on the functional diagram and
represented by the cyan colored path.
The
Delayed and Bypassed Streams 1-8
can be multiplexed into the video output
stream when the existing embedded audio has been deleted (no audio
replacement is possible) on the Mux web page and/or sent to available AES
outputs depending on module audio configuration.
These outputs are identified as
Delayed and Bypassed Streams 1-8
on the Mux
and AES Outputs web pages, colored with a cyan background to match the
corresponding path on the Functional View diagram.