Grass Valley iTX System v.2.6 - Manual (Page 397)

HDSDI/SDI Preview from an iTX Desktop
When the card is not in use, iTX plays back the audio content of a media file through the
workstation speakers, as normal. It decodes any Dolby E streams that are selected for playback.
The volume level can be adjusted through the volume slider on the Media Viewer.
When the card is in use, iTX plays back audio content through the workstation speakers but
does not decode any Dolby E streams. The workstation volume is adjustable through the Media
Viewer volume slider.
Identical audio content supplied to the card may be de-embedded from the output signal,
decoded if necessary, and played back through dedicated speakers. Volume-level control is
then independent of the Media Viewer; it is unaffected by the operation of the Media Viewer
volume slider.
Volume-level meters
The Media Viewer can optionally display volume-level meters for multiple audio tracks:
These show the volume level of the audio content that is played through the workstation
speakers (reflecting operation of the volume slider) when the Corvid LP card is not in use. They
show the levels of the various tracks in the media file when the Corvid card is in use.
Installing the feature
To make the feature available, the Corvid LP video card needs to be inserted in the iTX Desktop
workstation. Also, the required version of the FPP needs to be added to the iTX Desktop.
Video card
The Corvid LP video card can be installed in a standard iTX Desktop workstation. For the
technical specification of this workstation, contact Grass Valley Support.
For timing purposes, the card should be configured to “free run”: there should be no external
reference signal or live feed connected to the card.
March 2015 System Administrator Guide Page 397 of 404