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1. (WO2010075789) SIGNAL PROCESSING METHOD AND APPARATUS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/075789 International Application No.: PCT/CN2009/076266
Publication Date: 08.07.2010 International Filing Date: 30.12.2009
IPC:
G10L 21/02 (2006.01) ,G10L 19/00 (2006.01) ,H03M 7/30 (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
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
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
M
CODING, DECODING OR CODE CONVERSION, IN GENERAL
7
Conversion of a code where information is represented by a given sequence or number of digits to a code where the same information is represented by a different sequence or number of digits
30
Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
Applicants:
华为技术有限公司 HUAWEI TECHNOLOGIES CO., LTD. [CN/CN]; 中国广东省深圳市 龙岗区坂田华为总部办公楼 Huawei Administration Building, Bantian, Longgang Shenzhen, Guangdong 518129, CN (AllExceptUS)
刘泽新 LIU, Zexin [CN/CN]; CN (UsOnly)
苗磊 MIAO, Lei [CN/CN]; CN (UsOnly)
陈龙吟 CHEN, Longyin [CN/CN]; CN (UsOnly)
胡晨 HU, Chen [CN/CN]; CN (UsOnly)
哈维·米希尔·塔迪 HERVE, Marcel Taddei [FR/CN]; CN (UsOnly)
张清 ZHANG, Qing [CN/CN]; CN (UsOnly)
Inventors:
刘泽新 LIU, Zexin; CN
苗磊 MIAO, Lei; CN
陈龙吟 CHEN, Longyin; CN
胡晨 HU, Chen; CN
哈维·米希尔·塔迪 HERVE, Marcel Taddei; CN
张清 ZHANG, Qing; CN
Priority Data:
200810192947.131.12.2008CN
200910004181.416.02.2009CN
Title (EN) SIGNAL PROCESSING METHOD AND APPARATUS
(FR) PROCÉDÉ ET APPAREIL DE TRAITEMENT DE SIGNAL
(ZH) 信号处理方法及装置
Abstract:
(EN) A signal processing method and apparatus are provided. The method includes: obtaining the energy average of each sub-band for frequency-domain signal of current frame (11), obtaining the modified coefficient of current frame of each sub-band for the frequency-domain signal of the current frame according to frequency-domain envelope and energy average of each sub-band (12), obtaining the weighted modified coefficient of each sub-band for the frequency-domain signal of the current frame using the modified coefficient of current frame and the modified coefficient of relevant frame (13), and modifying the frequency-domain envelope of each sub-band for the frequency-domain signal of the current frame using the weighted modified coefficient (14).
(FR) L'invention porte sur un procédé et un appareil de traitement de signal. Le procédé comprend les opérations consistant à : obtenir la moyenne d'énergie de chaque sous-bande pour un signal du domaine fréquentiel d'une trame courante (11), obtenir le coefficient modifié de trame courante de chaque sous-bande pour le signal du domaine fréquentiel de la trame courante selon l'enveloppe dans le domaine fréquentiel et une moyenne d'énergie de chaque sous-bande (12), obtenir le coefficient modifié pondéré de chaque sous-bande pour le signal du domaine fréquentiel de la trame courante à l'aide du coefficient modifié de trame courante et du coefficient modifié de trame pertinente (13), et modifier l'enveloppe dans le domaine fréquentiel de chaque sous-bande pour le signal du domaine fréquentiel de la trame courante à l'aide du coefficient modifié pondéré (14).
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, 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, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, 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, 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, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)
Also published as:
EP2383731