Grass Valley Imagestore 750 v.3.0.1 - Manual (Page 138)

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Advanced Audio
Dolby
Metadata Sources
Metadata can be obtained from any of the following inputs:
• External RS-485 ports (4).
• Internal Dolby decoder module (4).
• Internal metadata A/B switch.
• Internally-stored custom-defined preset (4).
• Internal blank source.
Metadata Destinations
Metadata passing through the Imagestore 750 can be supplied to a number of possible
destinations:
• External RS-485 Ports (4).
• Dolby encoder module (4).
• Internal metadata A/B switch.
Metadata Routing
All audio configurations that use Dolby and metadata have an accompanying metadata
configuration.
Metadata may be connected from any available “source” to any available “destination”. Metadata
typically feeds an internal Dolby encoder to be embedded within the Dolby PGM output, or is
output from the Imagestore 750 on an RS-485 port.
Use the ‘Audio Graph’ page under ‘Configuration Mode’ in the Imagestore 750 Configurator to
configure metadata. Use ‘Metadata Mode’ to configure metadata presets. The following
diagrams illustrate how to configure some simple metadata cases.