(19)

(11)

EP 4 282 165 A1

(12)

(43) Date of publication: 29.11.2023 Bulletin 2023/48 (21) Application number: 22743130.1 (22) Date of filing: 19.01.2022

(51) International Patent Classification (IPC):  H04R 1/40(2006.01) H04R 1/34(2006.01) H04R 5/02(2006.01) (52) Cooperative Patent Classification (CPC): H04R 5/02; H04S 7/302; H04R 27/00; H04R 5/04; H04R 1/403 (86) International application number: PCT/US2022/013023 (87) International publication number: WO 2022/159525 (28.07.2022 Gazette 2022/30)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 21.01.2021 US 202163139802 P 30.07.2021 US 202117390555 (71) Applicant: Biamp Systems, LLC Beaverton, OR 97008 (US)	(72) Inventor: YU, Xian Chloe Bryn Mawr, PA 19010 (US) (74) Representative: Cobbold, Alistair John et al Kilburn & Strode LLP Lacon London 84 Theobalds Road London WC1X 8NL London WC1X 8NL (GB)