Patent · US Active

Apparatus and method for synthesizing an output signal

US8515759B2 · kind B2 · utility

26Cited by

2References

27Claims

0Family size

Assignee

Dolby International AB · IE

Inventors

Jonas Engdegard · Stockholm, SE
Heiko Purnhagen · Sundbyberg, SE
Barbara Resch · Solna, SE
Lars Villemoes · Stockholm, SE
Cornelia Falch · Rum, AT
Juergen Herre · Erlangen, DE
Johannes Hilpert · Nuremberg, DE
Andreas Hoelzer · Erlangen, DE
Leonid Terentiev · Erlangen, DE

Key dates

Filing date	Apr 23, 2008
Grant date	Aug 20, 2013
Priority date	—
Expiry date	Oct 20, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04S2400/01
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An apparatus for synthesizing a rendered output signal having a first audio channel and a second audio channel includes a decorrelator stage for generating a decorrelator signal based on a downmix signal, and a combiner for performing a weighted combination of the downmix signal and a decorrelated signal based on parametric audio object information, downmix information and target rendering information. The combiner solves the problem of optimally combining matrixing with decorrelation for a high quality stereo scene reproduction of a number of individual audio objects using a multichannel downmix.

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