Patent · US Active

Apparatus for generating a multi-channel audio signal

US8781133B2 · kind B2 · utility

6Cited by

4References

12Claims

0Family size

Assignee

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

Inventors

Andreas Walther · Könnern, DE
Oliver Hellmuth · Erlangen, DE
Falko Ridderbusch · Erlangen, DE
Christian Stoecklmeier · Erlangen, DE

Key dates

Filing date	Jun 8, 2011
Grant date	Jul 15, 2014
Priority date	—
Expiry date	May 13, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04S2400/11
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An apparatus for generating a multi-channel audio signal based on an input audio signal comprises a main signal upmixer, a section selector, a section signal upmixer and a combiner. The main signal upmixer is configured to provide a main multi-channel audio signal based on the input audio signal. The section selector is configured to select or not select a section of the input audio signal based on an analysis of the input audio signal. The selected section of the input audio signal, a processed selected section of the input audio signal or a reference signal associated with the selected section of the input audio signal is provided as section signal. The section signal upmixer is configured to provide a section upmix signal based on the section signal, and the combiner is configured to overlay the main multi-channel audio signal and the section upmix signal to obtain the multi-channel audio signal.

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