GUIDE TO INSTALLATION AND OPERATION
ADX-1901 |
1
1 ADX-1901 3G/HD/SD 8 Channel Analog Audio De- Embedder
1.1 Introduction
The ADX-1901 is an advanced, high quality 24-bit 48 KHz analog audio de-embedder designed to extract eight
analog audio signals from a 3G/HD/SD video signal. The ADX-1901 can process the 8 audio de-embedded channels
with functions including level, channel shuffling and mixing.
The loudness measurement features allows the measurement and logging of up to 8 audio programs with iControl
Loudness Monitoring software to analyze and report compliance with respect to various loudness legislation around
the world. Furthermore, a delay of up to 2.7 seconds can be programmed independently per de-embedded audio
channel to provide lip sync correction.
The ADX-1901 can de-embed Ancillary Time Code (ATC) in 3Gbps/HD, or DVITC in SD, to generate Linear Time
Code (LTC). Up to two GPIO can be generated by extracting GPI events from the Time Code user bits in transport
applications. Audio Metadata extraction from the VANC can be streamed to an external RS-422 output.
The ADX-1901 is designed for the Densité 2 frame, but will be compatible with the Densité 3 frame with the metal
extender. Multiple rear connector panels are available according to your application needs and the chassis type used.
A fiber input/output cartridge is offered as an option on some rear modules. Once the cartridge is installed, the input or
outputs are selectable through the control interface.
1.2 Features
Audio
•
8 analog audio outputs
•
Audio silence output on loss of video input.
•
Full audio shuffling and mixing on a channel output basis
•
Individually adjustable audio output levels
•
Audio 5.1 surround downmix to Lo/Ro
•
Audio delay adjustments of up to 2.7 seconds to compensate for lip sync issues
•
Built in test generator (audio).
•
Monitoring and reporting of audio output Max/Min Level, Silence and Phase.
•
Loudness measurement of up to 8 audio programs and logging with iControl Loudness Monitoring software
•
Loudness compliant to EBU R128, ATSC A/85:2013 and ARIB TR-B32 (ITU-R BS.1770-3))
Video
•
3Gbps/HD/SD input with automatic equalization
•
Supports 3Gbps level A (mapping 1) and level B
•
Automatic detection of video input format
•
Optional optical fiber SFP cartridge
•
Black Detection monitoring
Metadata
•
Linear Time Code (LTC) output translated from DVITC (SD) or ATC (3Gbps/HD)
•
2 GPI data output signals reconstructed from ANC TC user bits.
•
RS-422 serial data output to carry Audio Metadata (SMPTE 2020-A) from the VANC.
