2 features – Grass Valley AMX-3981 2014 User Manual
Page 8
GUIDE TO INSTALLATION AND OPERATION
2 | AMX-3981
1.2 Features
Video
• 3Gbps/HD/SD input
• Supports 3Gbps level A (mapping 1) and level B
• Audio/Video deglitcher to handle video hot switch at the input
• Automatic detection of input video loss and switchover to local grey for continuity of embedded audio
• Flexible HD/SD reference using the internal URS frame reference
• Minimum processing delay of 7.5
μs (HD), but additional delay can be added up to 15 frames
• Optional optical fiber module
• Compatible with iControl end-to-end A/V fingerprint analyzer for lip sync error detection and measurement
Audio
• 8 AES inputs
• Sample rate conversion for asynchronous AES inputs
• Full audio shuffling and mixing on a channel basis
• 32 channels internal audio processing
• Audio 5.1 surround down-mix to Lt/Rt or Lo/Ro
• Audio dynamic processor option (compressor/limiter/expander)
• Optional on-board Automatic Loudness Control with Miranda Wideband processing
• Optional loudness measurement of up to 4 audio programs and logging with iControl
o
Loudness compliant to EBU R128, ATSC A/85 and ARIB TR-B32 (ITU-R BS.1770-3)
• Audio delay adjustments of up to 2 seconds to compensate for lip-sync issues
• A/V fingerprint generation (an iControl option) for lip-sync measurement
• On-board socket for 1 optional expansion module:
o
Dolby E and Dolby Digital decoder module
o
Dolby E encoder module
o
Dolby Digital and Dolby Digital Plus encoder module
o
Linear Acoustic upMAX™ audio stereo to 5.1 upmixing
o
Linear Acoustic AEROMAX™ Automatic Loudness Control
o
Jünger Audio LevelMagic™ Automatic Loudness Control
Metadata
• AFD (SMPTE-2016), VLI (RP-186) and WSS insertion
• Linear Time Code (LTC) embedding into DVITC (SD) or ATC (HD)
• Dolby Metadata insertion and extraction (SMPTE 2020)
• RS-422 serial data input & output to carry audio metadata
•
GPI inputs & outputs that can be inserted or extracted from the embedded timecode user bits. They can also be
used for
automation, user preset recall and loudness reset.