Grass Valley Imagestore 750 v.3.0.1 - Manual (Page 180)

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Imagestore 750 Configurator
Modes
Note: There are also ‘Legacy Audio Mix Blocks’ that are deprecated and should be used only for
compatibility with legacy IS23 products. These blocks have been superseded with alternatives
that provide enhanced features. If you attempt to add a legacy block, the Imagestore 750
Configurator will suggest an alternative block(s) that should be instead. Legacy audio mix
blocks are not described in this document and are not recommended.
Note: Audio graph blocks highlighted in red on the audio graph window indicate that they are
not supported by the Imagestore 750. Unsupported blocks occur when you are editing an audio
graph created for an Imagestore 750 with different options. Ensure that your audio graph
contains no unsupported blocks. They provide no functionality.
Inputs
The input blocks define all possible audio sources for the system. The Imagestore 750 supports
the following blocks:
Block Type Description
SDI audio feed Represents embedded audio from an SDI input. Four audio feeds are
supported, each having 16 channels of embedded audio. Each feed can be
configured to match any one of the SDI inputs, or it can follow the video A/B
mixer’s A or B input.
AES inputs Represents the physical AES inputs on the device. There are 16 AES pairs
giving a total of 32 input audio channels.
Easyplay Represents an Easyplay stream for playing out audio clips. There are 4
Easyplay streams which share a total of 16 audio channels. Each stream can
be configured with an associated voice-over that is cut up automatically
whenever an Easyplay file is playing out. Alternatively, a queue of the
Easyplay stream can follow the associated voiceover position (in which case
playing the Easyplay stream does not drive the voiceover). Alternatively,
each stream can also be instructed to follow corresponding program or
preview video channel keyer cuts and fades, or loads and unloads using a
filename association and optional filename prefix. Alternatively, each stream
can be driven independently by automation. Each stream can also be
configured to indicate whether it is associated with a PGM or PST voiceover.
Silence Provides an input that is silence.
Test tone Provides a test tone, the frequency of which can be modified.
Table 8-1: Audio Graph - Input signal blocks