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1. (WO2004008805) AUDIO CODING
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2004/008805    International Application No.:    PCT/IB2003/002858
Publication Date: 22.01.2004 International Filing Date: 19.06.2003
IPC:
H04S 3/00 (2006.01)
Applicants: KONINKLIJKE PHILIPS ELECTRONICS N.V. [NL/NL]; Groenewoudseweg 1, NL-5621 BA Eindhoven (NL) (For All Designated States Except US).
BREEBAART, Dirk, J. [NL/NL]; (NL) (For US Only)
Inventors: BREEBAART, Dirk, J.; (NL)
Agent: GROENENDAAL, Antonius, W., M.; Philips Intellectual Property & Standards, Prof. Holstlaan 6, NL-5656 AA Eindhoven (NL)
Priority Data:
02077866.8 12.07.2002 EP
Title (EN) AUDIO CODING
(FR) CODAGE AUDIO
Abstract: front page image
(EN)A method of encoding a multi-channel audio signal including at least a first signal component (LF), a second signal component (LR) and a third signal component (RF). The method comprises the steps of encoding the first and second signal components by a first parametric encoder (202) resulting in a first encoded signal (L) and a first set of encoding parameters (P2); encoding the first encoded signal and a further signal (R) by a second parametric encoder (201), resulting in a second encoded signal (T) and a second set of encoding parameters (P1), where the further signal is derived from at least the third signal component; and representing the multi-channel audio signal at least by a resulting encoded signal (T) derived from at least the second encoded signal, by the first set of encoding parameters and by the second set of encoding parameters.
(FR)L'invention concerne un procédé de codage d'un signal audio multi-canaux comprenant au moins des premier (LF), deuxième (LR) et troisième composants (RF). Le procédé comprend les étapes consistant à coder les premier et deuxième composants du signal au moyen d'un premier codeur paramétrique (202), de manière à obtenir un premier signal codé (L) et un premier ensemble de paramètres de codage (P2); à coder le premier signal codé et un autre signal (R) au moyen d'un second codeur paramétrique (201), de manière à obtenir un second signal codé (T) et un second ensemble de paramètres de codage (P1), l'autre signal étant dérivé au moins du troisième composant du signal; et à représenter le signal audio multi-canaux au moins par un signal codé obtenu (T), dérivé au moins du second signal codé, au moyen des premier et second ensembles de paramètres de codage.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)