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1. (WO2012040897) DEVICE AND METHOD FOR POSTPROCESSING DECODED MULTI-CHANNEL AUDIO SIGNAL OR DECODED STEREO SIGNAL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2012/040897    International Application No.:    PCT/CN2010/077385
Publication Date: 05.04.2012 International Filing Date: 28.09.2010
IPC:
G10L 19/00 (2006.01), H04B 1/66 (2006.01), H04H 20/88 (2008.01)
Applicants: HUAWEI TECHNOLOGIES CO., LTD. [CN/CN]; Huawei Administration Building,Bantian, Longgang Shenzhen, Guangdong 518129 (CN) (For All Designated States Except US).
VIRETTE, David [FR/DE]; (DE) (For US Only).
LANG, Yue [CN/CN]; (CN) (For US Only).
MIAO, Lei [CN/CN]; (CN) (For US Only).
WU, Wenhai [CN/CN]; (CN) (For US Only)
Inventors: VIRETTE, David; (DE).
LANG, Yue; (CN).
MIAO, Lei; (CN).
WU, Wenhai; (CN)
Priority Data:
Title (EN) DEVICE AND METHOD FOR POSTPROCESSING DECODED MULTI-CHANNEL AUDIO SIGNAL OR DECODED STEREO SIGNAL
(FR) DISPOSITIF ET PROCÉDÉ DE POST-TRAITEMENT DE SIGNAL AUDIO MULTICANAL DÉCODÉ OU DE SIGNAL STÉRÉO DÉCODÉ
Abstract: front page image
(EN)A device and method for postprocessing a decoded multi-channel audio signal or a decoded stereo signal are provided. The device comprises a receiver (103;103') for receiving at least one channel signal generated from the decoded downmix signal, a time envelope of the decoded downmix signal and a classification indication indicating a transient type of the at least one channel signal, wherein the classification indication is associated with the at least one channel signal, and a postprocessor (105;105') for postprocessing the at least one channel signal based on the time envelope of the decoded downmix signal weighted by a respective weighting factor and in dependence of the classification indication.
(FR)L'invention porte sur un dispositif et un procédé de post-traitement d'un signal audio multicanal décodé ou d'un signal stéréo décodé. Le dispositif comprend un récepteur (103; 103') pour recevoir au moins un signal de canal généré à partir du signal de mixage réducteur décodé, une enveloppe temporelle du signal de mixage réducteur décodé et une indication de classification indiquant un type transitoire de l'au moins un signal de canal, l'indication de classification étant associée à l'au moins un signal de canal, et un post-processeur (105; 105') pour post-traiter l'au moins un signal de canal sur la base de l'enveloppe temporelle du signal de mixage réducteur décodé pondérée par un facteur de pondération respectif et en fonction de l'indication de classification.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, 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)