(19)

(11)

EP 4 799 372 A1

(12)

(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 24804758.1 (22) Date of filing: 22.10.2024

(51) International Patent Classification (IPC):  H04R 23/00(2006.01) G10K 11/16(2006.01) (52) Cooperative Patent Classification (CPC): H04R 23/004; G10K 11/1785; G10K 11/17875; G10K 15/06; G10K 2210/32121 (86) International application number: PCT/EP2024/079843 (87) International publication number: WO 2025/087914 (01.05.2025 Gazette 2025/18)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 27.10.2023 GB 202316485 (71) Applicant: Sonexos SA 1003 Lausanne (CH)	(72) Inventor: DONALDSON, Mark 1003 Lausanne (CH) (74) Representative: Abraham, Richard et al Maguire Boss 24 East Street St. Ives, Cambridgeshire PE27 5PD St. Ives, Cambridgeshire PE27 5PD (GB)