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1. (WO2007078186) METHOD OF PROCESSING AUDIO SIGNALS FOR IMPROVING THE QUALITY OF OUTPUT AUDIO SIGNAL WHICH IS TRANSFERRED TO SUBSCRIBER'S TERMINAL OVER NETWORK AND AUDIO SIGNAL PRE-PROCESSING APPARATUS OF ENABLING THE METHOD
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/078186    International Application No.:    PCT/KR2007/000115
Publication Date: 12.07.2007 International Filing Date: 08.01.2007
IPC:
G10L 21/02 (2006.01), H04B 1/40 (2006.01)
Applicants: REALNETWORKS ASIAPACIFIC CO., LTD. [KR/KR]; K1 Reit Building, 463, Chungjeong-ro-3-ga, Seodaemun-gu, Seoul 120-709 (KR) (For All Designated States Except US).
JEONG, Jae Woong [KR/KR]; (KR) (For US Only).
PARK, Seop Hyeong [KR/KR]; (KR) (For US Only).
RYU, Jong Kyu [KR/KR]; (KR) (For US Only)
Inventors: JEONG, Jae Woong; (KR).
PARK, Seop Hyeong; (KR).
RYU, Jong Kyu; (KR)
Agent: SONG, Young Gun; MUHANN Patent & Law Firm, 2, 5, 6th Fl., Myeonglim Building, 51-8 Nonhyeon-Dong, Gangnam-Gu, Seoul 135-814 (KR)
Priority Data:
10-2006-0001901 06.01.2006 KR
10-2006-0001902 06.01.2006 KR
Title (EN) METHOD OF PROCESSING AUDIO SIGNALS FOR IMPROVING THE QUALITY OF OUTPUT AUDIO SIGNAL WHICH IS TRANSFERRED TO SUBSCRIBER'S TERMINAL OVER NETWORK AND AUDIO SIGNAL PRE-PROCESSING APPARATUS OF ENABLING THE METHOD
(FR) PROCÉDÉ DE TRAITEMENT DE SIGNAUX AUDIO VISANT À AMÉLIORER LA QUALITÉ D'UN SIGNAL AUDIO DE SORTIE TRANSFÉRÉ VERS UN TERMINAL D'ABONNÉ SUR UN RÉSEAU ET APPAREIL DE PRÉTRAITEMENT DE SIGNAUX AUDIO METTANT EN OEUVRE CE PROCÉDÉ
Abstract: front page image
(EN)A method of pre-processing an audio signal transmitted to a user terminal via a communication network and an apparatus using the method are provided. The method of pre-processing the audio signal may prevent deterioration of a sound quality of the audio signal transmitted to the user terminal by pre-processing the audio signal, and by enabling a codec module, encoding the audio signal, to determine the audio signal as a speech signal. Also, the method of pre-processing the audio signal may improve a probability that the codec module may determine a corresponding audio signal as a speech when the audio signal is transmitted via the communication network by pre-processing the audio signal using a speech codec.
(FR)Cette invention concerne un procédé de prétraitement d'un signal audio envoyé à un terminal utilisateur par un réseau de communication et un appareil mettant en oeuvre ce procédé. Le procédé de prétraitement du signal audio, qui permet d'éviter que la qualité d'un son du signal audio envoyé au terminal utilisateur ne se détériore, consiste à prétraiter le signal audio et à permettre à un module codec codant le signal audio de considérer le signal audio comme un signal vocal. Ainsi, le procédé de prétraitement du signal audio peut améliorer une probabilité qu'un module codec puisse considérer un signal audio correspondant comme un signal vocal lorsque le signal audio est envoyé par le réseau de communication en prétraitant le signal audio au moyen d'un codec vocal.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: Korean (KO)