GUIDE TO INSTALLATION AND OPERATION
LGK-3901/DSK-3901 |
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7.4.1 Inputs
The input blocks define all possible audio sources for the system. The following blocks are supported:
Block Type
Description
SDI Audio Feed
Represents an embedded SDI audio input feed. Two feeds are supported, each with 16
channels of audio. Each feed can be set to follow the video AB mixer A or B input
(requires AB mixer option). Alternatively the source can be fixed to PGM IN, FILL-1 or
FILL-2
AES Inputs
Represents the physical AES inputs on the device. There are 4 AES pairs giving a total
of 8 input audio channels
Easyplay (LGK-3901 only)
Represents an Easyplay stream for playing out audio clips. Two Easyplay streams are
provided sharing a total of 8 audio channels. Each stream can be instructed to follow
corresponding video layer cuts, fades, loads and unloads using a filename association
and optional filename prefix. Each stream can be configured with an associated voice-
over that is cut up automatically whenever an Easyplay file is playing out.
Silence
Provides an input with a silence on it
Test Tone
Provides an input with a test tone on it, the frequency of which can be modified.
7.4.2 Audio
Mix
Blocks
The audio mix blocks define all possible methods for mixing audio sources together. The following blocks are
supported, all of which support mixing of streams up to 48 channels wide:
Block Type
Description
Audio AB Mixer
Provides AB mix, AB cut and AB data cut between two input sources – (requires
AB mixer option).
Audio Mix
Provides custom mixing of up to 8 input sources
Audio Voiceover
Provides a voiceover onto background audio, ducking the background
appropriately. Gain presets (see section 0) and shuffle presets (see section 7.6)
may be used for the voiceover input, and fade rate, duck level and preset level
may be set in dB.
Audio Voiceover Preview
Provides preview of voiceover of shuffle sensitive, gain adjusted voiceover
channels
Audio Gain
Allows audio sources to be attenuated at a specific level in dB with per-channel
control.
Audio Input Program Gain
Provides gain modification via gain presets (see section 0) or the j0 automation
commands. The j011 (mute), j012 (trim), j013 (phase) and j014 (level) can be
used to control up to 16 channels.
Audio Input Program Shuffler
Provides shuffles via shuffle presets (see section 7.6) or the j0 automation
commands. The j010 command can be used to shuffle up to 16 channels.
Audio Input Program Multiplexor
Provides multiplexing of several sources of audio onto a single output. This is
useful for monitoring different audio sources on the same audio output.
Audio Input Preset Gain
Provides gain modification via gain presets (see section 0) or the j0 automation
commands. The j031 (mute), j032 (trim), j033 (phase) and j034 (level) can be
used to control up to 16 channels.
USO
RESTRITO
