Patent · US Active

Method and apparatus for generating a stereo signal with enhanced perceptual quality

US8064624B2 · kind B2 · utility

9Cited by

5References

22Claims

0Family size

Assignee

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

Inventors

Bernhard Neugebauer · Erlangen, DE
Jan Plogsties · Ergolding, DE
Harald Popp · Tuchenbach, DE

Key dates

Filing date	Feb 12, 2008
Grant date	Nov 22, 2011
Priority date	—
Expiry date	Sep 23, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04S7/30
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A stereo signal with enhanced perceptual quality using a mid-signal and a side-signal, can be generated, when a enhanced side signal is created prior to the upmix of the stereo signal. A decorrelated representation of at least a portion of the sum signal and/or a decorrelated representation of at least a portion of the side-signal is generated. The enhanced side-signal is generated combining a representation of the side-signal with the decorrelated representation of the portion of the mid signal, with the decorrelated representation of the side-signal and the decorrelated representation of the portion of the mid-signal or with the portion of the mid-signal and the decorrelated representation of the portion of the side-signal. The stereo signal with enhanced perceptual quality is created using a representation of the mid-signal and the enhanced side-signal.

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