Personal sound zone systems use multiple loudspeakers to deliver individual audio experiences to several people in a room. At low frequencies, the use of distributed woofers and sound field control is advantageous for creating sound separation (contrast) between the zones. Wireless streaming to the woofers is convenient from a practical point of view but packet losses significantly decreases the sound quality and the sound separation between the zones. In this study autoregressive (AR) models are evaluated for concealing the effects of wireless packet losses both with regard to contrast performance and sound quality using several objective sound quality models. According to these models, for mild independent and identically distributed (i.i.d.) packet loss to a single woofer, the AR model can lead to imperceptible performance degradations, but for more bursty packet losses the AR model is less effective - though significantly better than silence substitution.

Authors: Pedersen, Christian Sejer; Zhou, Mo; Møller, Martin Bo; de Koeijer, Niels Evert Marius; Østergaard, Jan
Affiliations: Aalborg University, Denmark; Aalborg University, Denmark; Bang & Olufsen A/S, Struer, Denmark; Bang & Olufsen A/S, Struer, Denmark; Aalborg University, Denmark(See document for exact affiliation information.)
AES Convention: 154 (May 2023) Paper Number: 10651
Publication Date: May 13, 2023 Import into BibTeX
Subject: Soundfield & CTC
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=22058

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