Patent · US Active

Apparatus and method for calculating filter coefficients for a predefined loudspeaker arrangement

US8462966B2 · kind B2 · utility

1Cited by

3References

18Claims

0Family size

Assignee

IOSONO GmbH · DE

Inventors

Robert Steffens · Kassel, DE
Frank Melchior · Ilmenau, DE
Martin Dausel · Erfurt, DE
Andreas Graefe · Bückeburg, DE

Key dates

Filing date	Sep 23, 2010
Grant date	Jun 11, 2013
Priority date	—
Expiry date	Jun 26, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04S2420/13
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An apparatus for calculating filter coefficients for a predefined loudspeaker arrangement has a multi-channel renderer. The multi-channel renderer calculates a filter coefficient for each loudspeaker of a virtual loudspeaker arrangement, being different from the predefined loudspeaker arrangement, based on a property (e.g. position or type) of a virtual source of an audio object to be reproduced by the predefined loudspeaker arrangement. Further, the multi-channel renderer determines an adapted filter coefficient for a loudspeaker of the predefined loudspeaker arrangement based on one or more calculated filter coefficients of one or more loudspeakers of the different virtual loudspeaker arrangement.

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