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Convention Paper

A Loudness-Based Adaptive Equalization Technique for Subjectively Improved Sound Reproduction

Authors: Drossos, Konstantinos; Floros, Andreas; Kanellopoulos, Nikolaos-Grigorios

AES Convention 136 · Paper 9085 · April 2014

Abstract

Sound equalization is a common approach for objectively or subjectively defining the reproduction level at specific frequency bands. It is also well-known that the human auditory system demonstrates an inner process of sound-weighting. Due to this, the perceived loudness changes with the frequency and the user-defined sound reproduction gain, resulting into a deviation of the intended and the perceived equalization scheme as the sound level changes. In this work we introduce a novel equalization approach that takes into account the above perceptual loudness effect in order to achieve subjectively constant equalization. A series of listening tests shows that the proposed equalization technique is an efficient and listener-preferred alternative for both professional and home audio reproduction applications.

Details

Published in
AES Convention 136
AES Convention
136
Paper number
9085
Publication date
April 6, 2014
Session subject
Applications in Audio
Affiliation
Ionian University, Corfu, Greece (See document for exact affiliation information.)
Type
Convention Paper