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National Association of Broadcasters Engineering Handbook, 11th Edition by Garrison C. Cavell

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Chapter5.14

Digital Television Audio Loudness Management

Jim Starzynski

NBCUniversal

New York, NY

Background and History

Along with high-definition (HD) pictures, digital television (DTV) introduced cinema-quality surround sound that had a tremendous increase in audio dynamic range compared to its analog predecessor. With this increase in dynamic range came the unintentional consequence of severe loudness variation when loudness was not managed correctly. Initially, the home listening DTV audience often felt the negative impact of the new audio system in the form of extreme loudness variation between commercials and programs on a given channel and loudness variation when changing channels across the dial. Viewers were not accustomed to the inconvenience ...

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