GRASS VALLEY GV MATRIX, User Manual

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GV Matrix Audio
MADI
• If MDX is OFF (option not activated, or option active but not selected in GV Matrix
manager), embedding and de-embedding are not active on the entire XIO-4901card.
• If MDX is OFF, MADI may be enabled on the last two I/O of an XIO-4901. The MADI audio
is directed to the audio matrix. Embedded audio can enter and leave the XIO-4901
through the remaining 7 SDI I/O ports, but remains embedded in the video stream and
does not go to the audio matrix. At the outputs, it is passed through and not
overwritten.
• If the MDX option is active, and turned ON in GV Matrix manager, the use of MADI is
disabled.
• If the MDX option is active, the user may select, through the GV Matrix manager,
whether embedding and de-embedding is active on the entire XIO-4901 card using the
Options pulldown. If it is active, embedding and de-embedding can be
enabled/disabled on individual inputs and outputs. If MDX is active on an output,
embedded audio arriving from the video matrix will ALWAYS be overwritten by discrete
audio from the audio matrix, or blanked if no audio input is selected by the control
system.
Control of the router for audio and video is handled by the NV9000 control system. See
Router Control Configuration on page 89.
MADI
The XIO-4901supports MADI audio on the last two numbered inputs and outputs. The
actual designated inputs and outputs depend on the installed rear panel, because the
panel with DIN connectors supports 9 IN and 9 OUT, while the panel with BNC connectors
supports 8 IN and 8 OUT.
Rear Panel Connectors MADI I/O Channels
XIO-4901-4DRP BNC 7 & 8
XIO-4901-4SRP-D DIN 8 & 9
The XIO-4901 supports MADI at 48 KHz sampling, and the MADI stream can carry 64
channels of audio, in 16 groups of 4 channels each.
Note:
When the MDX Option is installed and ON, support for MADI is no
longer available.
To configure SDI inputs and outputs to carry MADI audio
1 Open the GV Matrix Manager by double-clicking in the iControl Navigator window.
2 In the row for the XIO-4901 you are configuring:
a Under Options , select None from the pulldown if the MDX option is available.
Note that this will disable embedding and de-embedding of audio on all 9 inputs
and outputs of the XIO-4901.
b In the section Inputs to Internal Fabric Module , select MADI from the pulldown for
any of the last two inputs (see the table above) if you want to activate MADI for that
SDI input.