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Convention Paper

Loudness Normalization of Wide-Dynamic Range Broadcast Material

Authors: Norcross, Scott G.; Lavoie, Michel C.

AES Convention 132 · Paper 8606 · April 2012

Abstract

Various techniques are being used by broadcasters to normalize the loudness levels of their programmes. For long-form content, EBU R128 recommends that the full programme be measured using the algorithm described in ITU-R BS.1770-2. ATSC A/85 recommends instead that only the “Anchor Element” of long-form content need be measured. For narrow dynamic range material, the differences between the two measures are not large, but there can be large differences between the two approaches when the material has a wide dynamic range. This paper compares these two measurement approaches and explores their subjective consequences.

Details

Published in
AES Convention 132
AES Convention
132
Paper number
8606
Publication date
April 6, 2012
Session subject
Multimodal Apps and Broadcast
Affiliation
Communications Research Centre, Ottawa, Ontario, Canada (See document for exact affiliation information.)
Type
Convention Paper