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Conference Paper

Reshaping of Room Impulse Responses over Wireless Acoustic Networks

Authors: Piñero, Gema; Estreder, Juan; Martinez-Zaldivar, Francisco; de Diego, Maria; Ferrer, Miguel

AES Conference: 2016 AES International Conference on Sound Field Control · Paper 7-4 · July 2016

Abstract

The sound inside an enclosure is always perturbed by the room impulse response (RIR) between the source and the listener. The RIR reshaping technique processes the sound reproduced by the loudspeakers to obtain a desired RIR. This paper reformulates the RIR reshaping technique based on $p$-norm optimization algorithm in order to implement it on a wireless acoustic network that runs a personal sound zone system (PSZS). A distributed computation of the original algorithm is proposed. Experimental results of a real PSZS implemented on an acoustic network of commercial devices are presented and compared to those of the RIR reshaping algorithm. The new RIRs slightly improve the attenuation between zones and eliminate the late echoes of the real signals.

Details

Published in
AES Conference: 2016 AES International Conference on Sound Field Control
Paper number
7-4
Publication date
July 6, 2016
Session subject
Emerging Techniques and Applications with Array Transducers
Affiliation
Polytechnic University of Valencia, Valencia, Spain (See document for exact affiliation information.)
Type
Conference Paper