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1. (WO2006019555) MUSIC DETECTION WITH LOW-COMPLEXITY PITCH CORRELATION ALGORITHM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2006/019555    International Application No.:    PCT/US2005/023712
Publication Date: 23.02.2006 International Filing Date: 30.06.2005
Chapter 2 Demand Filed:    14.12.2005    
IPC:
G10L 25/90 (2013.01)
Applicants: MINDSPEED TECHNOLOGIES, INC. [US/US]; 4000 MacArthur Blvd., East Tower, Newport Beach, CA 92660 (US) (For All Designated States Except US).
GAO, Yang [CN/US]; (US) (For US Only)
Inventors: GAO, Yang; (US)
Agent: FARJAMI, Farshad; Farjami & Farjami LLP, 26522 La Alameda Avenue, Suite 360, Mission Viejo, CA 92691 (US)
Priority Data:
60/588,445 16.07.2004 US
10/981,022 04.11.2004 US
11/084,392 17.03.2005 US
11/156,874 17.06.2005 US
Title (EN) MUSIC DETECTION WITH LOW-COMPLEXITY PITCH CORRELATION ALGORITHM
(FR) DETECTION DE MUSIQUE AVEC UN ALGORITHME DE CORRELATION DE TON A FAIBLE COMPLEXITE
Abstract: front page image
(EN)A method for detecting music in a speech signal having a plurality of frames (120). The method comprises obtaining one or more first pitch correlation candidates from a first frame of the plurality of frames (771); obtaining one or more second pitch correlation candidates from a second from of the plurality of frames (771); selecting a pitch correlation (RP) from the one or more first pitch correlation candidates and one or more second pitch correlation candidates (773); and distinguishing music from background noise based on analyzing the pitch correlation (Rp) (775). The method may comprise filtering the speech signal using a one-order low-pass filter prior to the obtaining the one or more first pitch correlation candidates (920), and down sampling the speech signal by four prior to obtaining the one or more first pitch correlation candidates (940).
(FR)La présente invention concerne un procédé pour détecter de la musique dans un signal vocal ayant une pluralité de trames. Le procédé comprend: l'obtention d'un ou plusieurs premiers candidats de corrélation de ton à partir d'une première trame de la pluralité de trames; l'obtention d'un ou de plusieurs seconds candidats de corrélation de ton à partir d'une seconde trame de la pluralité de trames; la sélection d'une corrélation de ton (Rp) à partir du/des premier(s) candidat(s) de corrélation de ton et du/des second(s) candidat(s) de corrélation de ton; et la distinction entre la musique et le bruit de fond en se basant sur l'analyse de la corrélation de ton (Rp). Le procédé peut également comprendre le filtrage du signal vocal au moyen d'un filtre passe-bas d'ordre un, avant l'obtention du/des premier(s) candidat(s) de corrélation de ton, et le sous-échantillonnage du signal vocal par quatre avant l'obtention du/des premier(s) candidat(s) de corrélation de ton.
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, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, 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, 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: English (EN)