Atlanta, GA (July 17, 2015)—Jünger Audio and Fraunhofer IIS are presenting a prototype multichannel processor for the new MPEG-H TV audio system that enables broadcasters to maintain compliance with loudness regulations.
Since U.S. broadcasters became subject to sanctions for loud advertisements under the federal CALM Act, many TV networks, local stations, and cable or satellite operators adopted loudness processing as a precautionary measure. The available technologies required re-processing the broadcast programming at each point in the signal chain leading to a loss of dynamic range not only in commercials but also in programming. As a result, the overall quality of the broadcast audio can be diminished.
In the new MPEG-H system, content may be tagged to indicate it already has been processed or leveled for proper loudness control. This allows for managed loudness processing where loudness control is only engaged on unprocessed content, avoiding the degradation of multiple leveling passes. This happens in real time as the content is broadcast.
This automatic selective loudness control feature is integrated into the MPEG-H Audio Monitoring and Authoring Unit produced by Jünger Audio in collaboration with Fraunhofer IIS.