Sd & 24-Bit Audio; Deleting Audio Groups - Sonifex Redbox RB-VHDMA8 User Handbook Manual

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R B - V H E M A 8
To enable embedding to this group and channel, both the GROUP and GROUP CHANNEL
must be enabled. This is indicated by the button LED being lit green. If either are red, then
simply enable them by holding down the relevant button for two seconds. Embedding will
only take place if the GROUP is enabled. If the GROUP CHANNEL is enabled and the GROUP
is not, then no embedding will occur.
Cycling through the groups and group channels using the GROUP and GROUP CHANNEL
buttons respectively, allows the user to determine which groups are currently enabled for
embedding and their sources.
SD & 24-bit Audio
The Redbox embedders provide full support for 24-bit audio embedding in SD by making
use of the extended data packets as per SMPTE-272M. By default the unit embeds 20-bit
audio. To enable the full 24-bit embedding, this must be set through the remote control
port.
Before enabling this option, ensure that any receiving equipment is capable of handling
the extended data packets.

Deleting Audio Groups

If the SDI video signal contains audio groups which require deleting, then these can be
deleted on a per output basis. For example if the video input contained all four audio
groups then it is possible to delete all groups on output 1 and only groups 1 and 2 on
output 2.
The unit will also delete any ancillary packets marked for deletion and realign the packets
to make maximum use of the available ancillary space.
To delete audio groups the unit is put into a special group deletion mode. To enter this
mode press and hold the STATUS button for 5 seconds. The front panel button indicators
will change so that only the GROUP, GROUP CHANNEL and STATUS buttons are available.
The GROUP button and indicators are used to select the group number, the GROUP
CHANNEL button is used to enable or disable deletion on this group and the STATUS
button is used to select the output. Once the desired settings have been set, then using
the same method to enter the group deletion mode will exit it. The new settings will be
applied as soon as the unit returns to its normal operating mode.
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Redbox Embedder/De-embedder User Handbook