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1. (WO2019028115) MITIGATING IMPACT OF DOUBLE TALK FOR RESIDUAL SUPPRESSORS
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Pub. No.: WO/2019/028115 International Application No.: PCT/US2018/044765
Publication Date: 07.02.2019 International Filing Date: 01.08.2018
IPC:
H04M 9/08 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
M
TELEPHONIC COMMUNICATION
9
Arrangements for interconnection not involving centralised switching
08
Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
Applicants:
BOSE CORPORATION [US/US]; The Mountain Framingham, MA 01701-9168, US
Inventors:
HERA, Cristian, M.; US
BOU DAHER, Elie; US
Agent:
SMITH, Craig, R.; US
ANDREASEN, David, S.; US
Priority Data:
15/668,23703.08.2017US
Title (EN) MITIGATING IMPACT OF DOUBLE TALK FOR RESIDUAL SUPPRESSORS
(FR) ATTÉNUATION DE L'IMPACT D'UNE PAROLE SIMULTANÉE POUR DES SUPPRESSEURS RÉSIDUELS
Abstract:
(EN) Audio systems and methods of suppressing residual echo are provided that determine spectral mismatches by comparing a spectral density of a residual signal from an acoustic echo canceler to a spectral density of a program content signal. At least one spectral mismatch is stored in memory. The systems and methods select a spectral mismatch to use for calculating a filter coefficient, from among one or more of the stored or actively determined spectral mismatches, and filter the residual signal based upon the calculated filter coefficient.
(FR) L'invention concerne des systèmes audio et des procédés de suppression d'écho résiduel qui déterminent des décalages spectraux en comparant une densité spectrale d'un signal résiduel provenant d'un annuleur d'écho acoustique à une densité spectrale d'un signal de contenu de programme. Au moins un décalage spectral est stocké dans une mémoire. Les systèmes et les procédés sélectionnent un décalage spectral à utiliser pour calculer un coefficient de filtre, parmi un ou plusieurs des décalages spectraux stockés ou déterminés activement, et filtrent le signal résiduel sur la base du coefficient de filtre calculé.
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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)