Patent · US Active

Apparatus and method for multichannel direct-ambient decompostion for audio signal processing

US10395660B2 · kind B2 · utility

0Cited by

1References

14Claims

0Family size

Assignee

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

Inventors

Christian Uhle · Nuremberg, DE
Emanuel Habets · Spardorf, DE
Patrick Gampp · Erlangen, DE
Michael Kratz · Houston, US

Key dates

Filing date	Sep 4, 2015
Grant date	Aug 27, 2019
Priority date	—
Expiry date	Sep 4, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04S2400/01
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An apparatus for generating one or more audio output channel signals depending on two or more audio input channel signals is provided. Each of the two or more audio input channel signals comprises direct signal portions and ambient signal portions. The apparatus comprises a filter determination unit for determining a filter by estimating first power spectral density information and by estimating second power spectral density information. Moreover, the apparatus comprises a signal processor for generating the one or more audio output channel signals by applying the filter on the two or more audio input channel signals. The first power spectral density information indicates power spectral density information on the two or more audio input channel signals, and the second power spectral density information indicates power spectral density information on the ambient signal portions of the two or more audio input channel signals.

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