(19)
(11) EP 4 518 358 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
14.05.2025 Bulletin 2025/20

(43) Date of publication A2:
05.03.2025 Bulletin 2025/10

(21) Application number: 24203477.5

(22) Date of filing: 12.03.2021
(51) International Patent Classification (IPC): 
H04R 25/00(2006.01)
(52) Cooperative Patent Classification (CPC):
H04R 25/407; H04R 25/552; H04R 2430/20
(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

(30) Priority: 23.03.2020 US 202016827694
29.06.2020 DK PA202070427

(62) Application number of the earlier application in accordance with Art. 76 EPC:
21162221.2 / 3886463

(71) Applicant: GN Hearing A/S
2750 Ballerup (DK)

(72) Inventor:
  • Ma, Changxue
    Glenview, 60026 (US)

(74) Representative: GN Store Nord A/S 
Lautrupbjerg 7
2750 Ballerup
2750 Ballerup (DK)

   


(54) METHOD AT A HEARING DEVICE


(57) A method of processing an audio signal, comprising: at an ipsilateral hearing device (100) with a first input unit (110) including one or more microphones (112,113) and configured to generate a first directional input signal (FL); a communications unit (120) configured to receive a second directional input signal (FR) from a contralateral hearing device; an output unit (140); and a processor (130) coupled to the first input unit (110), the communications unit (120) and the output unit (140); determining one or both of a first gain value (α; H(k)) and a second gain value (1-α; 1-H(k)); generating an intermediate signal (V) including a linear combination of the first directional input signal (FL) and the second directional input signal (FR), in accordance with one or both of the first gain value (α; H(k)) and the second gain value (1-α; 1-H(k)); wherein one or both of the first gain value (α; H(k)) and the second gain value (1-α; 1-H(k)) are determined in accordance with an objective of making a proportion of the first directional input signal (FL) and a proportion of the second directional signal (FR) at least substantially equal when combined; and generating an output signal (Z) for the output unit (140) based on the intermediate signal.







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