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1. (WO2017036940) METHOD AND SYSTEM FOR ENHANCING AN AUDIO SIGNAL
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Pub. No.: WO/2017/036940 International Application No.: PCT/EP2016/070151
Publication Date: 09.03.2017 International Filing Date: 26.08.2016
IPC:
G10L 21/0316 (2013.01) ,H04R 25/00 (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
21
Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
02
Speech enhancement, e.g. noise reduction or echo cancellation
0316
by changing the amplitude
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
25
Deaf-aid sets
Applicants:
COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES [FR/FR]; 25 rue Leblanc Bâtiment "Le Ponant D" 75015 Paris, FR
Inventors:
BEN JEMAA, Amira; TN
JAIDANE, Meriem; TN
LARBI, Sonia; TN
MECHERGUI, Nader; TN
MZAH, Yosra; TN
SEVESTRE-GHALILA, Sylvie; FR
TURKI, Monia; TN
Agent:
HAMMES, Pierre; FR
LUCAS, Laurent; FR
Priority Data:
155798628.08.2015FR
Title (EN) METHOD AND SYSTEM FOR ENHANCING AN AUDIO SIGNAL
(FR) PROCEDE ET SYSTEME DE REHAUSSEMENT D'UN SIGNAL AUDIO
Abstract:
(EN) The invention relates to a method for enhancing an audio signal intended for being broadcast to at least one target listener, said method including the following steps: receiving an audio signal s(t); filtering (201) the audio signal s(t) by means of a frequency enhancement filter, the frequency template of which is determined from statistical values of auditory threshold deviation, as a function of the frequency, that are characteristic of said at least one target listener; normalising (203) the filtered signal, by a gain configured in accordance with said at least one target listener, such that said signal is between an absolute auditory threshold (SAA) and a pain threshold (SD); the absolute auditory threshold (SAA) being determined for a given listener profile.
(FR) Procédé de rehaussement d'un signal audio destiné à être diffusé à au moins un auditeur cible, ledit procédé comprenant les étapes suivantes : - Recevoir un signal audio s(t), - Filtrer (201) le signal audio s(t) par un filtre de rehaussement fréquentiel dont le gabarit fréquentiel est déterminé à partir de valeurs statistiques d'écart de seuil d'audition, fonctions de la fréquence, caractéristiques dudit au moins un auditeur cible, - normaliser (203) le signal filtré, par un gain configuré en fonction dudit au moins un auditeur cible, de sorte à être compris entre un seuil d'audition absolu (SAA) et un seuil de douleur (SD), - le seuil d'audition absolu (SAA) étant déterminé pour un profil d'auditeurs donné.
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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, IR, IS, JP, KE, KG, KN, KP, KR, 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: French (FR)
Filing Language: French (FR)