(19)

(11)

EP 4 128 821 A1

(12)

(43) Date of publication: 08.02.2023 Bulletin 2023/06 (21) Application number: 21774239.4 (22) Date of filing: 24.02.2021

(51) International Patent Classification (IPC):  H04S 3/00(1980.01) G10L 19/24(2013.01) H04N 21/233(2011.01) G10L 19/008(2013.01) H04M 3/56(1968.09) (52) Cooperative Patent Classification (CPC): G10L 19/167; H04S 7/00; G10L 19/008; H04S 7/40 (86) International application number: PCT/FI2021/050135 (87) International publication number: WO 2021/191493 (30.09.2021 Gazette 2021/39)

(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: 23.03.2020 GB 202004184 (71) Applicant: Nokia Technologies Oy 02610 Espoo (FI)	(72) Inventor: LAAKSONEN, Lasse Juhani 33210 Tampere (FI) (74) Representative: Nokia EPO representatives  Nokia Technologies Oy Karakaari 7 02610 Espoo 02610 Espoo (FI)