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Convention Paper

Dynamic Range Control for Audio Signals Using Fourth-Order Level Estimation

Authors: Yang, Qing; Harris, John

AES Convention 129 · Paper 8179 · November 2010

Abstract

The human auditory system has been shown to be more sensitive to transient signals than stationary signals given the same energy. Conventional second-order measurements based on energy or root-mean-squared value cannot adequately characterize the auditory perception of non-stationary audio signals. A fourth-order dynamic range control (DRC) algorithm is proposed in this study. The perceptual quality and the dynamic range reduction effectiveness are evaluated for both second-order and fourth-order DRC algorithms. Evaluation results show that our proposed fourth-order DRC algorithm offers better balance of perceptual quality and dynamic range reduction than the conventional second-order approach.

Details

Published in
AES Convention 129
AES Convention
129
Paper number
8179
Publication date
November 6, 2010
Session subject
Loudness and Dynamics
Affiliation
University of Florida, Gainesville, FL, USA (See document for exact affiliation information.)
Type
Convention Paper