EVS GFS010, Руководство по установке и настройке

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INSTALLATION AND CONFIGURATION MANUAL
GFS010 – HFS010 – SFS010
18
AUDIO PROC AMP
Audio-Phase
If this setting is set to
Align
, the card ensures audio-phase
alignment between multiple audio channels and audio groups,
which is necessary for multi-channel (surround) purposes. If errors
in the signal-chain occur the de-embedder blocks reset
synchronously to maintain audio-phase-alignment.
If this setting is set to
Off
, the card eats-all audio including errors.
Even if there are DBN/ANC/ECC or channel-sequence errors, the
de-embedder will pass them. Be aware that audio-phase-alignment
between multiple audio channels and audio groups can not be
maintained if this setting is set to
Off
.
Note: This setting can be helpful to solve problems in the field
using equipment which doesn’t follow the standards correctly.
AudioStatusBits
With this setting you select whether the audio status bits should be
Transparent (
off
) (same status bit on the outputs as on the inputs)
or to overwrite (
on
) them with new status bits.
emb_aud_hand_A
Embedded audio handling for channel A. This card has a built-in
embedder, de-embedder and audio gain stage. This menu item
controls the functionality of these stages.
■
Blank
: blanks the horizontal blanking.
■
Pass
: passes the audio un-processed.
■
Process
: controls the ‘smart’ audio handling.
‘smart’ audio handling: the selected groups in the following Grp-A-
Sel and Grp-B-Sel setting item are de-embedded. The audio is
routed through an audio gain stage and is re-embedded in the
selected group afterwards. This is performed after the frame
synchronizer. When a video (+embedded audio) frame needs to be
rewritten or removed as a result of an asynchronous SD/HD/3Gb/s
input, the audio gain stage ramps down the selected group prior to
the action and ramps up afterwards. This whole process masks
audio irregularities that are audible in a normal Frame synchronizer.
When using the
Pass
setting DOLBY-E is transfered with
minimum delay.
Audio_Ctrl
With this setting you select how the audio presets should be
controlled. Can be either Manually (
Manual
), via GPI-triggers
(
GPI
,
GPI-A
,
GPI-B
or
GPI-C
), via the SD aspect ratio (
SD-AR
)
or via the HD aspect ratio (
S2016
).