Patent · US Active

Filter and method for informed spatial filtering using multiple instantaneous direction-of-arrival estimates

US10331396B2 · kind B2 · utility

2Cited by

0References

15Claims

0Family size

Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Emanuel Habets · Spardorf, DE
Oliver Thiergart · Forchheim, DE
Sebastian Braun · Rüsselsheim am Main, DE
Maja Taseska · Erlangen, DE

Key dates

Filing date	Jun 18, 2015
Grant date	Jun 25, 2019
Priority date	—
Expiry date	Jun 18, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04R3/02
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A filter for generating an audio output signal includes a plurality of audio output signal samples based on two or more input microphone signals. The audio output signal and the two or more input microphone signals are represented in a time-frequency domain, wherein each of the plurality of audio output signal samples is assigned to a time-frequency bin of a plurality of time-frequency bins. The filter includes a weights generator being adapted to receive, for each of the plurality of time-frequency bins, direction-of-arrival information and weighting information. Moreover, the filter includes an output signal generator for generating the audio output signal.

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