Patent · US Active

Method and apparatus for processing an audio signal based on equalization filter

US11405723B2 · kind B2 · utility

0Cited by

4References

13Claims

0Family size

Assignee

Huawei Technologies Co., Ltd. · CN

Inventors

Liyun Pang · Munich, DE
Fons Adriaensen · Munich, DE
Roman Schlieper · Hannover, DE
Song Li · Nanhu, CN

Key dates

Filing date	Apr 30, 2021
Grant date	Aug 2, 2022
Priority date	—
Expiry date	Apr 30, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2460/05
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method for processing an audio signal, the method including: processing the audio signal according to a pair of mouth to ear transfer functions to obtain a processed audio signal; filtering the processed audio signal, using a pair of equalization filters, to obtain a filtered audio signal, where a parameter of the equalization filter is depends on an acoustic impedance of a headphone; and outputting the filtered audio signal to the headphone. Accordingly, this method counteracts the occlusion effect and to provides a natural perceived sound pressure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.