the AC078 ATLANTIC project
An important factor
in containing the costs and maintaining the Technical Quality of future
TV production will be the ability to handle and process the video and
audio signals as much as possible in compressed form. This project aims
to develop the technology which will enable the signal to be kept in compressed
MPEG format throughout the complete broadcast chain. The main objectives
of ATLANTIC are therefore :
To assemble and
demonstrate the essential building blocks of a programme distribution
chain based on compressed video signals from the input of a studio
to the final display.
To pursue international
standardisation, where appropriate, for the technology demonstrated
by the project.
It is expected that
this project will lay the foundations for the economic production of television
programmes in an era when the number of television channels will be increasing
dramatically. Through the development of equipment using strategic VLSI
devices, the functionality required for handling the MPEG bitstream in
programme production and distribution should become available at reasonable
cost. The technology developed in this project should find use in both
professional and consumer-based applications.
The technical tasks
involved in this project are development and implementation of :
MPEG post production facility
A real-time presentation
mixer unit for assembling a complete MPEG programme stream from a
selection of MPEG input streams
statistical multiplexer giving optimum efficiency across all programmes
within the multiplex
receiver display up-conversion suitable for high-quality, final display
in an MPEG distribution chain
A standard interface
for the compressed signal for studio applications and for satellite,
cable, and distribution equipment
to enable economic implementation of the above functions
applicable to radio,as well as TV sound.
The project will
also investigate interworking of production systems using component,
composite and compressed formats.
Low cost switching
of the MPEG bitstream. This can only be achieved by the development
of strategic VLSI components
standard interfaces for compressed bitstream which are applicable
over a wide range of bitrates and which are compatible with computer
and telecom networks.
implementation of effective strategies to minimise the impairments of
cascading bit-rate-reduction processing.
and the ACTS