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Convention Paper

A Novel Approach for Prototype Extraction in a Multipoint Equalization Procedure

Authors: Cecchi, Stefania; Romoli, Laura; Piazza, Francesco; Bank, Balázs; Carini, Alberto

AES Convention 136 · Paper 9048 · April 2014

Abstract

Multipoint equalization is a useful procedure used to enlarge the zone to be equalized in sound reproduction systems by measuring the room impulse responses in multiple locations and deriving a prototype function capable to represent the real environment. This paper deals with the introduction of a novel prototype function derived from the combination of quasi-anechoic impulse responses with the impulse responses recorded in the real environment to be equalized. This is motivated by the fact that at mid and high frequencies the timbre perception and localization is dominated by the direct sound, thus, the measurable, but mostly inaudible magnitude deviations due to reflections should not be equalized. Several experiments have been conducted in order to validate the proposed approach, considering a real environment and reporting objective and subjective measurements in comparison with the state of the art.

Details

Published in
AES Convention 136
AES Convention
136
Paper number
9048
Publication date
April 6, 2014
Session subject
Perception/Spatial Audio/Room Acoustics
Affiliation
Universitá Politecnica della Marche, Ancona (AN), Italy; Budapest University of Technology and Economics, Budapest, Hungary; University of Urbino "Carlo Bo", Urbino, Italy (See document for exact affiliation information.)
Type
Convention Paper