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Details

Veröffentlichungs-Nr.

EP4815509

Anmeldetag

24. März 2026

Veröffentlichung

30. September 2026

Rechtsraum

EP

Abstract

A hearing aid comprising one or more sub-band filters is disclosed. The disclosure relates to the use of one or more sub-band filters in the frequency domain to attenuate background noise of a microphone signal. The disclosure relates to the use of two analysis filter banks. One of the two analysis filter banks has a low frequency resolution that outputs a set of low resolution sub-band input signals, and the other analysis filter bank has a higher frequency resolution that outputs a set of high resolution sub-band input signals. The low frequency resolution analysis filter bank has low signal delay but low frequency resolution, whereas the high frequency resolution analysis filter bank has high signal delay but high frequency resolution. The disclosure is to use the output of the high frequency resolution analysis filter bank to estimate one or more sub-band filters that are applied on the set of low resolution sub-band input signals to attenuate background noise in the set of low-resolution sub-band signals.

Anmelder

Firma

Oticon A/S

Land

🇩🇰 Dänemark