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1. (WO2014191793) AUDIO SIGNAL ENCODER
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2014/191793 International Application No.: PCT/IB2013/054407
Publication Date: 04.12.2014 International Filing Date: 28.05.2013
IPC:
G10L 19/008 (2013.01) ,H04S 1/00 (2006.01) ,H04S 3/00 (2006.01)
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
L
SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
19
Speech or audio signal analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
04
using predictive techniques
08
Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
S
STEREOPHONIC SYSTEMS
1
Two-channel systems
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
S
STEREOPHONIC SYSTEMS
3
Systems employing more than two channels, e.g. quadraphonic
Applicants:
NOKIA TECHNOLOGIES OY [FI/FI]; Karaportti 3 FI-02610 Espoo, FI
Inventors:
RAMO, Anssi Sakari; FI
VASILACHE, Adriana; FI
LAAKSONEN, Lasse, Juhani; FI
Agent:
SMITH, John, Gary; Page White & Farrer Bedford House John Street London Greater London WC1N 2BF, GB
Priority Data:
Title (EN) AUDIO SIGNAL ENCODER
(FR) CODEUR DE SIGNAUX AUDIO
Abstract:
(EN) An apparatus comprising: a parameter determiner configured to determine for a frame of at least one audio signal a set of frame audio signal multi-channel parameters; a parameter selector configured to select for the frame a sub-set of the set of frame audio signal multi-channel parameters based on an error value associated with the sub-set of the set of frame audio signal multi-channel parameters; and parameter encoder configured to generate an encoded frame audio signal multi-channel parameter based on the selected sub-set of the set of frame audio signal multi-channel parameters.
(FR) La présente invention concerne un appareil comprenant : un système de détermination de paramètres conçu pour déterminer, pour une trame d'au moins un signal audio, un ensemble de paramètres multicanaux de signaux audio de trame; un sélecteur de paramètres conçu pour sélectionner, pour la trame, un sous-ensemble de l'ensemble de paramètres multicanaux de signaux audio de trame, sur la base d'une valeur d'erreur associée au sous-ensemble de l'ensemble de paramètres multicanaux de signaux audio de trame; et un codeur de paramètres conçu pour générer un paramètre multicanaux de signaux audio de trame codé sur la base du sous-ensemble sélectionné de l'ensemble de paramètres multicanaux de signaux audio de trame.
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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, 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, 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 (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)