A broadcast programme production chain using compressed media is now feasible. The problem of quality degradation from successive decode/encode operations is well documented. The ATLANTIC project aims to use compressed data-streams as the standard encoding throughout the post-production and distribution chain without compromising technical quality. This paper describes a system that demonstrates how cascading can be avoided in the psot-production and editing environment and, where cascading is unavoidable, how codec coding decisions can be hidden in a decoded PCM bit-strema and reused to minimise quality loss.
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