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About timecode source and clock synchronization – Grass Valley GV STRATUS Installation v.3.1 User Manual

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site’s workflow. In the GV STRATUS application you can then assign metadata to an asset by
entering text or making a selection in the custom field. Adding custom fields is optional.

Related Topics

STRATUS Core Services Metadata settings

on page 103

About timecode source and clock synchronization

Timecode is a continuous sequence of data embedded in a clip from beginning to the end in order
to provide time reference for logging, synchronization, and tracking. It enables editing of a media
file by identifying specific timeframe, and marking those in and out timecodes as reference points.
There are several timecode sources depending on the recorder and timecode generator of the media
file.

The GV STRATUS application supports these timecode sources:

Description

Timecode Source

Available on HD channels only. Timecode is read from ancillary VITC.

AncVITC

Available on SD channels only. Timecode is read from the VITC input for
the channel.

VITC

Available on HD/SD channels.Timecode is read from the LTC input for the
channel.

LTC

Available on HD channels only. Timecode is read from ancillary LTC.

AncLTC

Available on HD or SD recordings. Time of Day is an internal generator.
You can select either LTC feeds or Windows system clock as the clock source
to drive the generator. LTC feeds can be from Channels 1, 2, 3, or 4.

Time of Day

Available in HD or SD. When Start Time is selected, you can specify the
timecode to use when the recording starts. The drop frame option is enabled
when the system timing is set to the 525 line standard (NTSC). Drop frame
timecode allows the generator to operate as an accurate clock.

Start Time

Clock synchronization is required on all GV STRATUS servers and K2 Summit/SAN systems.
Ensure that K2 Summit/SAN systems are locked to house reference and clocks on all machines are
kept in sync. This is especially important on systems with Ingest Scheduler, as it must be kept in
sync with the GV STRATUS Core server and K2 Summit/SAN systems.

About advanced query syntax, advanced searches and custom expressions

A combination of search features provide flexibility in creating GV STRATUS searches. Entering
text with advanced query syntax is available in both the Simple Search tool and the Advanced Search
tool. The Advanced Search tool provides additional capabilities.

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GV STRATUS Installation and Service Manual

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Understanding system concepts

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