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1. (WO2019029680) CODING METHOD FOR TIME-DOMAIN STEREO PARAMETER, AND RELATED PRODUCT
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/029680 International Application No.: PCT/CN2018/099887
Publication Date: 14.02.2019 International Filing Date: 10.08.2018
IPC:
G10L 19/008 (2013.01) ,G10L 19/18 (2013.01) ,G10L 19/22 (2013.01)
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
04
using predictive techniques
08
Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
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
04
using predictive techniques
16
Vocoder architecture
18
Vocoders using multiple modes
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
04
using predictive techniques
16
Vocoder architecture
18
Vocoders using multiple modes
22
Mode decision, i.e. based on audio signal content versus external parameters
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 District Shenzhen, Guangdong 518129, CN
Inventors:
李海婷 LI, Haiting; CN
王宾 WANG, Bin; CN
苗磊 MIAO, Lei; CN
Agent:
广州三环专利商标代理有限公司 SCIHEAD IP LAW FIRM; 中国广东省广州市 越秀区先烈中路80号汇华商贸大厦1508室 Room 1508, Huihua Commercial & Trade Building No. 80, XianLie Zhong Road,Yuexiu District Guangzhou, Guangdong 510070, CN
Priority Data:
201710680858.010.08.2017CN
Title (EN) CODING METHOD FOR TIME-DOMAIN STEREO PARAMETER, AND RELATED PRODUCT
(FR) PROCÉDÉ DE CODAGE POUR PARAMÈTRE STÉRÉO DE DOMAINE TEMPOREL ET PRODUIT ASSOCIÉ
(ZH) 时域立体声参数的编码方法和相关产品
Abstract:
(EN) A coding method for a time-domain stereo parameter, and a related product. The coding method for a time-domain stereo parameter comprises: determining a sound-channel combination solution of a current frame; determining a time-domain stereo parameter of the current frame according to the sound-channel combination solution of the current frame; and coding the time-domain stereo parameter of the current frame, the time-domain stereo parameter comprising at least one of a scale factor and a time difference between sound channels. The technical solution provided in embodiments of the present application helps to improve the coding and decoding quality.
(FR) L'invention concerne un procédé de codage pour un paramètre stéréo de domaine temporel, ainsi qu'un produit associé. Le procédé de codage pour un paramètre stéréo de domaine temporel consiste à : déterminer une solution de combinaison de canaux sonores d'une trame actuelle ; déterminer un paramètre stéréo de domaine temporel de la trame actuelle en fonction de la solution de combinaison de canaux sonores de la trame actuelle ; et coder le paramètre stéréo de domaine temporel de la trame actuelle, le paramètre stéréo de domaine temporel comprenant au moins un facteur d'échelle et/ou une différence temporelle entre des canaux sonores. Dans les modes de réalisation de l'invention, la solution technique contribue à améliorer la qualité de codage et de décodage.
(ZH) 一种时域立体声参数的编码方法和相关产品。一种时域立体声参数的编码方法,包括:确定当前帧的声道组合方案;根据所述当前帧的声道组合方案确定所述当前帧的时域立体声参数;对确定的所述当前帧的时域立体声参数进行编码,所述时域立体声参数包括声道组合比例因子和声道间时间差中的至少一种。本申请实施例提供的技术方案有利于提高编解码质量。
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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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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: Chinese (ZH)
Filing Language: Chinese (ZH)