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1. (WO2018136167) INTER-CHANNEL PHASE DIFFERENCE PARAMETER MODIFICATION
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/136167 International Application No.: PCT/US2017/065547
Publication Date: 26.07.2018 International Filing Date: 11.12.2017
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: QUALCOMM INCORPORATED[US/US]; ATTN: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714, US
Inventors: ATTI, Venkatraman; US
CHEBIYYAM, Venkata Subrahmanyam Chandra Sekhar; US
Agent: TOLER, JEFFREY G.; 8500 Bluffstone Cove, Suite A201 Austin, Texas 78759, US
Priority Data:
15/836,61808.12.2017US
62/448,29719.01.2017US
Title (EN) INTER-CHANNEL PHASE DIFFERENCE PARAMETER MODIFICATION
(FR) MODIFICATION DE PARAMÈTRE DE DIFFÉRENCE DE PHASE ENTRE CANAUX
Abstract:
(EN) A method includes performing modifying, at a decoder, at least a portion of inter-channel phase difference (IPD) parameter values based on a mismatch value to generate modified IPD parameter values. The mismatch value is indicative of an amount of temporal misalignment between an encoder-side reference channel and an encoder-side target channel. The modified IPD parameter values are applied to a decoded frequency-domain mid channel during an up-mix operation.
(FR) L'invention concerne un procédé comprenant la réalisation d'une modification, au niveau d'un décodeur, d'au moins une partie de valeurs de paramètre de différence de phase entre canaux (IPD) sur la base d'une valeur de non-concordance pour générer des valeurs de paramètre d'IPD modifiées. La valeur de non-concordance est indicative d'une quantité de désalignement temporel entre un canal de référence côté codeur et un canal cible côté codeur. Les valeurs de paramètres d'IPD modifiées sont appliquées à un canal central de domaine fréquentiel décodé pendant une opération de mixage élévateur.
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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)