Global Patent Index - EP 1779385 A1

EP 1779385 A1 20070502 - METHOD AND APPARATUS FOR ENCODING AND DECODING MULTI-CHANNEL AUDIO SIGNAL USING VIRTUAL SOURCE LOCATION INFORMATION

Title (en)

METHOD AND APPARATUS FOR ENCODING AND DECODING MULTI-CHANNEL AUDIO SIGNAL USING VIRTUAL SOURCE LOCATION INFORMATION

Title (de)

VERFAHREN UND VORRICHTUNG ZUM CODIEREN UND DECODIEREN EINES MEHRKANALIGEN AUDIOSIGNALS UNTER VERWENDUNG VON VIRTUELLE-QUELLE-ORTSINFORMATIONEN

Title (fr)

PROCEDE ET DISPOSITIF DESTINES A CODER ET DECODER UN SIGNAL AUDIO MULTICANAL AU MOYEN D'INFORMATIONS D'EMPLACEMENT DE SOURCE VIRTUELLE

Publication

EP 1779385 A1 20070502 (EN)

Application

EP 05774399 A 20050708

Priority

  • KR 2005002213 W 20050708
  • KR 20040053665 A 20040709
  • KR 20040081303 A 20041012
  • KR 20050061425 A 20050707

Abstract (en)

[origin: WO2006006809A1] Provided is a method and apparatus for encoding/decoding a multi-channel audio signal. The apparatus for encoding a multi-channel audio signal includes a frame converter for converting the multi-channel audio signal into a framed audio signal; means for downmixing the framed audio signal; means for encoding the downmixed audio signal; a source location information estimator for estimating source location information from the framed multi-channel audio signal; means for quantizing the estimated source location information; and means for multiplexing the encoded audio signal and the quantized source location information, to generate an encoded multi-channel audio signal.

IPC 8 full level

G10L 19/00 (2006.01); G10L 19/008 (2013.01); G11B 20/10 (2006.01); H04S 3/00 (2006.01)

CPC (source: EP)

G10L 19/008 (2013.01); H04S 3/008 (2013.01); H04S 2420/03 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2006006809 A1 20060119; EP 1779385 A1 20070502; EP 1779385 A4 20070725; EP 1779385 B1 20100922

DOCDB simple family (application)

KR 2005002213 W 20050708; EP 05774399 A 20050708