Audio processing apparatus and method for localizing an audio source

US11984965B2 · kind B2 · utility

Assignees

• Huawei Technologies Co., Ltd. · CN
• FRIEDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERG · DE

Inventors

• Mohammad Taghizadeh · Munich, DE
• Walter Kellermann · Eckental, DE
• Michael Günther · Koblenzer Straße, DE
• Andreas Brendel · Erlangen, DE

Key dates

• Filing date: Oct 7, 2021
• Grant date: May 14, 2024
• Expiry date: Jul 14, 2042

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04R2430/21
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

The disclosure relates to an audio processing apparatus for localizing an audio source. The audio processing apparatus comprises a plurality of audio sensors, including a primary audio sensor and at least two secondary audio sensors, configured to detect an audio signal from a target audio source, wherein the primary audio sensor defines at least two pairs of audio sensors with the at least two secondary audio sensors; and processing circuitry configured to: determine for each pair of audio sensors a first set of likelihoods of spatial directions of the target audio source using a first localization scheme; determine a second set of likelihoods of spatial directions of the target audio source using a second localization scheme; and determine a third set of likelihoods of spatial directions of the target audio source on the basis of the first sets of likelihoods and the second set of likelihoods.