Patent · US Active

Upmixer, method and computer program for upmixing a downmix audio signal

US9099078B2 · kind B2 · utility

9Cited by

6References

17Claims

0Family size

Assignee

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

Inventors

Matthias Neusinger · Meiningen, DE
Julien Robilliard · Nuremberg, DE
Johannes Hilpert · Nuremberg, DE

Key dates

Filing date	Jul 26, 2011
Grant date	Aug 4, 2015
Priority date	—
Expiry date	Sep 15, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG10L19/008
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An upmixer for upmixing a downmix audio signal into an upmixed audio signal describing one or more upmixed audio channels includes a parameter applier configured to apply upmixing parameters to upmix the downmix audio signal in order to obtain the upmixed audio signal. The parameter applier is configured to apply a phase shift to the downmix audio signal to obtain a phase-shifted version of the downmix audio signal, while leaving a decorrelated signal unmodified by the phase shift. The parameter applier is further configured to combine the phase-shifted version of the downmix audio signal with the decorrelated signal to obtain the upmixed audio signal.

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