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
Application
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
G10L 19/00 (2006.01); G10L 19/008 (2013.01); H04H 20/88 (2008.01)
CPC (source: EP)
G10L 19/008 (2013.01); H04H 20/88 (2013.01)
Citation (search report)
- [XA] US 2007053521 A1 20070308 - FUCHIGAMI NORIHIKO [JP], et al
- [XA] EP 1926082 A1 20080528 - DEUTSCHE TELEKOM AG [DE]
- [A] US 2003220800 A1 20031127 - BUDNIKOV DMITRY N [RU]
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)
DOCDB simple family (application)
EP 09305680 A 20090716