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1. (WO2014108677) DIGITAL ENCAPSULATION OF AUDIO SIGNALS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2014/108677    International Application No.:    PCT/GB2014/050040
Publication Date: 17.07.2014 International Filing Date: 07.01.2014
IPC:
G11B 20/10 (2006.01)
Applicants: MERIDIAN AUDIO LIMITED [GB/GB]; Latham Road Huntingdon Cambridgeshire PE29 6YE (GB).
CRAVEN, Peter, Graham [GB/GB]; (GB)
Inventors: CRAVEN, Peter, Graham; (GB).
STUART, John, Robert; (GB)
Agent: GILL JENNINGS & EVERY LLP; The Broadgate Tower 20 Primrose Street London Greater London EC2A 2ES (GB)
Priority Data:
1300309.0 08.01.2013 GB
Title (EN) DIGITAL ENCAPSULATION OF AUDIO SIGNALS
(FR) ENCAPSULATION NUMÉRIQUE DE SIGNAUX AUDIO
Abstract: front page image
(EN)Encoding and decoding systems are described for the provision of high quality digital representations of audio signals with particular attention to the correct perceptual rendering of fast transients at modest sample rates. This is achieved by optimising downsampling and upsampling filters to minimise the length of the impulse response while adequately attenuating alias products that have been found perceptually harmful.
(FR)L'invention porte sur des systèmes de codage et de décodage pour la fourniture de représentations numériques de haute qualité de signaux audio, une attention particulière étant portée au rendu perceptuel correct de transitoires rapides à des fréquences d'échantillonnage modestes. Cela est réalisé par optimisation de filtres de sous-échantillonnage et de sur-échantillonnage afin de réduire au minimum la longueur de la réponse impulsionnelle tout en atténuant adéquatement des produits de repliement dont on a constaté qu'ils nuisaient à la perception.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, 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, IR, IS, JP, KE, KG, 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, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 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, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, 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, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)