Global Patent Index - EP 2285025 A1

EP 2285025 A1 20110216 - Method and apparatus for coding/decoding a stereo audio signal into a mono audio signal

Title (en)

Method and apparatus for coding/decoding a stereo audio signal into a mono audio signal

Title (de)

Verfahren und Vorrichtung zur Codierung/Decodierung eines Stereoaudiosignals in ein Monoaudiosignal

Title (fr)

Procédé et appareil pour le codage/décodage d'un signal audio stéréo en un signal audio mono

Publication

EP 2285025 A1 20110216 (EN)

Application

EP 09305680 A 20090716

Priority

EP 09305680 A 20090716

Abstract (en)

A method for coding a stereo audio signal, composed of its two components comprising a first input audio signal (1) and a second input audio signal (2), into a single composite audio signal (3), comprising the steps of: - averaging said first input audio signal (1) and said second input audio signal (2) into an averaged audio signal (4, 9), - determining a first coding information (7) by comparing said averaged audio signal (4, 9) to said first input audio signal (1), - determining a second coding information (8) by comparing said averaged audio signal (4, 9) to said second input audio signal (2), - embedding said first and second coding information (7, 8) into said averaged audio signal (4, 9) to obtain the composite audio signal (3).

IPC 8 full level

H04H 20/88 (2008.01); G10L 19/00 (2006.01); G10L 19/008 (2013.01)

CPC (source: EP)

G10L 19/008 (2013.01); H04H 20/88 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

Designated extension state (EPC)

AL BA RS

DOCDB simple family (publication)

EP 2285025 A1 20110216

DOCDB simple family (application)

EP 09305680 A 20090716