Patent · US Active

Audio processing apparatus and method for denoising a multi-channel audio signal

US11889292B2 · kind B2 · utility

0Cited by

0References

14Claims

0Family size

Assignee

Huawei Technologies Co., Ltd. · CN

Inventors

Mohammad Taghizadeh · Munich, DE
Gil Keren · Passau, DE
Shuo Liu · Zhoushan City, CN
Bjoern Schuller · Passau, DE

Key dates

Filing date	Jan 21, 2022
Grant date	Jan 30, 2024
Priority date	—
Expiry date	Aug 12, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH04S2400/03
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The disclosure relates to an audio processing apparatus, comprising: a plurality of audio sensors, each audio sensor configured to receive a respective plurality of audio frames of an audio signal from an audio source, wherein the respective plurality of audio frames defines an audio channel of the audio signal; and a processing circuitry configured to: determine a respective feature set having at least one feature for each audio frame of each of the plurality of audio frames, wherein the plurality of features define a three-dimensional feature array; process the three-dimensional feature array using a neural network, wherein the neural network comprises a self-attention layer configured to process a plurality of two-dimensional sub-arrays of the three-dimensional feature array; and generate an output signal on the basis of the plurality of processed two-dimensional sub-arrays. Moreover, the disclosure relates to a corresponding audio processing method.

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