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1. (WO2012110481) AUDIO CODEC USING NOISE SYNTHESIS DURING INACTIVE PHASES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2012/110481    International Application No.:    PCT/EP2012/052462
Publication Date: 23.08.2012 International Filing Date: 14.02.2012
IPC:
G10L 19/012 (2013.01)
Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. [DE/DE]; Hansastraße 27c 80686 München (DE) (For All Designated States Except US).
SETIAWAN, Panji [ID/DE]; (DE) (For US Only).
SCHMIDT, Konstantin [DE/DE]; (DE) (For US Only).
WILDE, Stephan [DE/DE]; (DE) (For US Only)
Inventors: SETIAWAN, Panji; (DE).
SCHMIDT, Konstantin; (DE).
WILDE, Stephan; (DE)
Agent: SCHENK, Markus; Postfach 246 82043 Pullach (DE)
Priority Data:
61/442,632 14.02.2011 US
Title (EN) AUDIO CODEC USING NOISE SYNTHESIS DURING INACTIVE PHASES
(FR) CODEC AUDIO UTILISANT UNE SYNTHÈSE DU BRUIT DURANT DES PHASES INACTIVES
Abstract: front page image
(EN)A parametric background noise estimate is continuously updated during an active or non-silence phase so that the noise generation may immediately be started with upon the entrance of an inactive phase following the active phase. In accordance with another aspect, a spectral domain is very efficiently used in order to parameterize the background noise thereby yielding a background noise synthesis which is more realistic and thus leads to a more transparent active to inactive phase switching.
(FR)Une estimation du bruit de fond paramétrique est mise à jour de façon continue durant une phase active ou de non silence de sorte que la génération du bruit peut être commencée immédiatement à l'entrée d'une phase inactive suivant la phase active. Selon un autre aspect, un domaine spectral est utilisé très efficacement pour paramétrer le bruit de fond, produisant ainsi une synthèse du bruit de fond qui est plus réaliste et qui conduit à un passage plus transparent d'une phase active à une phase inactive.
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, QA, RO, RS, RU, RW, 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, 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, RS, 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)