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Convention Paper

A Two-Pass Algorithm for Automatic Loudness Correction

Authors: Lukin, Alexey; McClellan, Russell; Wishnick, Aaron

AES Convention 141 · Paper 9683 · September 2016

Abstract

Loudness standards for broadcast audio, such as BS.1770, establish target values for the integrated loudness, true peak level, and short-term loudness of a record. Compliance with these three targets can be challenging when the dynamic range of a record is high, so software for automatic loudness correction is important for speeding up the workflow of post-production engineers. This work reviews existing software implementations of automatic loudness correction and proposes a new algorithm that provides efficient simultaneous correction of all three targets.

Details

Published in
AES Convention 141
AES Convention
141
Paper number
9683
Publication date
September 6, 2016
Session subject
Signal Processing
Affiliation
iZotope, Inc., Cambridge, MA, USA (See document for exact affiliation information.)
Type
Convention Paper