Patent · US Active

Stereo compatible multi-channel audio coding

US8654985B2 · kind B2 · utility

3Cited by

2References

15Claims

0Family size

Assignee

Dolby International AB · IE

Inventors

Lars Villemoes · Stockholm, SE
Heiko Purnhagen · Sundbyberg, SE
Jonas Roeden · Solna, SE
Jonas Engdegard · Stockholm, SE
Jeroen Breebaart · Eindhoven, NL
Erik Gosuinus Petrus Schuijers · Eindhoven, NL

Key dates

Filing date	Mar 3, 2011
Grant date	Feb 18, 2014
Priority date	—
Expiry date	Dec 2, 2031

Classification

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

Abstract

A parametric representation of a multi-channel audio signal having parameters suited to be used together with a monophonic downmix signal to calculate a reconstruction of the multi-channel audio signal can efficiently be derived in a stereo-backwards compatible way when a parameter combiner is used to generate the parametric representation by combining a one or more spatial parameters and a stereo parameter resulting in a parametric representation having a decoder usable stereo parameter and an information on the one or more spatial parameters that represents, together with the decoder usable stereo parameter, the one or more spatial parameters.

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