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1. (WO2018086946) DOWNMIXER AND METHOD FOR DOWNMIXING AT LEAST TWO CHANNELS AND MULTICHANNEL ENCODER AND MULTICHANNEL DECODER
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Pub. No.: WO/2018/086946 International Application No.: PCT/EP2017/077820
Publication Date: 17.05.2018 International Filing Date: 30.10.2017
IPC:
G10L 19/008 (2013.01)
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
Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.[DE/DE]; Hansastraße 27c 80686 München, DE
Inventors: BORSS, Christian; DE
EDLER, Bernd; DE
FUCHS, Guillaume; DE
BÜTHE, Jan; DE
DISCH, Sascha; DE
GHIDO, Florin; DE
BAYER, Stefan; DE
MULTRUS, Markus; DE
Agent: ZINKLER, Franz; DE
ZIMMERMANN, Tankred; DE
STÖCKELER, Ferdinand; DE
SCHENK, Markus; DE
HERSINA, Günter; DE
BURGER, Markus; DE
SCHAIRER, Oliver; DE
PFITZNER, Hannes; DE
Priority Data:
16197813.508.11.2016EP
Title (EN) DOWNMIXER AND METHOD FOR DOWNMIXING AT LEAST TWO CHANNELS AND MULTICHANNEL ENCODER AND MULTICHANNEL DECODER
(FR) MÉLANGEUR-RÉDUCTEUR ET PROCÉDÉ POUR LE MÉLANGE RÉDUCTEUR D'AU MOINS DEUX VOIES, CODEUR MULTIVOIE ET DÉCODEUR MULTIVOIE
Abstract:
(EN) A downmixer for downmixing at least two channels of a multichannel signal (12) having the two or more channels, comprises: a processor (10) for calculating a partial downmix signal (14) from the at least two channels; a complementary signal calculator (20) for calculating a complementary signal from the multichannel signal (12), the complementary signal (22) being different from the partial downmix signal (14); and an adder (30) for adding the partial downmix signal (14) and the complementary signal (22) to obtain a downmix signal (40) of the multichannel signal.
(FR) L'invention concerne un mélangeur-réducteur pour le mélange réducteur d'au moins deux voies d'un signal multivoie (12) ayant ces voies, ledit mélangeur-réducteur comprenant : un processeur (10) destiné à calculer un signal de mélange réducteur partiel (14) à partir desdites voies; un calculateur de signal complémentaire (20) conçu pour calculer un signal complémentaire à partir du signal multivoie (12), le signal complémentaire (22) étant différent du signal de mélange réducteur partiel (14); et un additionneur (30) servant à additionner le signal de mélange réducteur partiel (14) et le signal complémentaire (22) afin d'obtenir un signal de mélange réducteur (40) du signal multivoie.
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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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, 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 (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, 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)