Grass Valley Imagestore 750 v.3.0.1 - Manual (Page 41)

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Imagestore 750
User Manual
Audio Processing
Audio processing requires the IS-750-Audio6 or IS-750-Audio16 audio option to be enabled.
The audio engine has the following characteristics:
• Input selection from embedded SDI (4 feeds having 16 channels) or external AES (32 chan-
nels).
• A/B mixing of multi-channel audio sources for cuts and variable rate fades (1–48 channels).
• Multi-channel voice-overs for program and preview with background automatically ducked
during voice-over (1–48 channels).
• Easyplay clip storage and playout of four streams sharing 16 audio channels.
• Ability to associate Easyplay audio files automatically with video image/animation files.
• “Wide” shuffles and control of gain level, trim, phase, and mute for each channel (1–48 chan-
nels).
• Dolby E and Dolby Digital (AC-3) decoding and encoding.
• 5.1 Up-mixing using Linear Acoustic’s AutoMAX-II TM technology.
• Advanced metadata processor with support for embedded metadata, metadata switching,
metadata generation, dynamic metadata modification, metadata pass-through, and meta-
data delay.
• Audio description (AD) with automated mixing of commentary track for the visually
impaired.
• Silence detection that automates the control of multiple independent voice-overs fed from
the same Easyplay clip.
• Fade-to-silence (1–48 channels).
• Configurable audio delays (48 channels shared between 6 delay banks).
• Output re-embedded onto PGM, PVW, CLN and MON outputs (16 channels) or external AES
(32 channels).
• Audio level metering (48 channels).
• Dynamic selection of audio preview points and metering through output multiplexors (1–48
channels, 16 sources).
• All internal processing is 24-bit at 48 kHz.
• Graphical configuration tool (the ‘Audio Graph’ page of the Imagestore 750 Configurator) for
creating, viewing, and editing audio routing.