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1. (WO2019000961) ALGORITHM-BASED AUDIO OPTIMIZATION METHOD, INTELLIGENT TERMINAL AND STORAGE DEVICE
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Pub. No.: WO/2019/000961 International Application No.: PCT/CN2018/076101
Publication Date: 03.01.2019 International Filing Date: 10.02.2018
IPC:
G10L 21/007 (2013.01) ,G10L 21/0216 (2013.01) ,G10L 21/0232 (2013.01)
[IPC code unknown for G10L 21/07]
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
0208
Noise filtering
0216
characterised by the method used for estimating noise
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
0208
Noise filtering
0216
characterised by the method used for estimating noise
0232
Processing in the frequency domain
Applicants:
深圳创维-RGB电子有限公司 SHENZHEN CHUANGWEI-RGB ELECTRONIC CO., LTD [CN/CN]; 中国广东省深圳市 南山区深南大道创维大厦A座13-16楼 13-16 F, Unit A, Skyworth Building Shennan Road, Nanshan District Shenzhen, Guangdong 518052, CN
Inventors:
陈学思 CHEN, Xuesi; CN
Agent:
深圳市君胜知识产权代理事务所(普通合伙) JOHNSON INTELLECTUAL PROPERTY AGENCY(SHENZHEN); 中国广东省深圳市 南山区麒麟路1号南山知识服务大楼308-309号 Room 308-309, Knowledge Service Building No.1, Qilin Road, Nanshan District Shenzhen, Guangdong 518052, CN
Priority Data:
201710511873.227.06.2017CN
Title (EN) ALGORITHM-BASED AUDIO OPTIMIZATION METHOD, INTELLIGENT TERMINAL AND STORAGE DEVICE
(FR) PROCÉDÉ D’OPTIMISATION AUDIO BASÉ SUR UN ALGORITHME, TERMINAL INTELLIGENT ET DISPOSITIF DE STOCKAGE
(ZH) 一种基于算法的音频优化方法、智能终端及存储装置
Abstract:
(EN) An algorithm-based audio optimization method, an intelligent terminal and a storage device, the method comprising: converting an original audio file in a time domain into an audio file in a frequency domain by means of Fourier transform in advance (S100); extracting the frequency range and amplitude information of an audio signal and matching the same with frequency ranges and amplitude information of a plurality of different types of existing audio test standard sound sources to determine the type of the audio signal (S200); and matching a corresponding frequency mapping function by means of a function library for transform to obtain a processed audio file according to the type of the audio signal, and obtaining an optimized audio file by means of inverse Fourier transform (S300). With the present invention, a similar type of sound source is searched for by comparing and matching original audio with a standard sound source, and then a frequency mapping function for transform is determined, the frequency is mapped, the relevant frequency is compressed or expanded, and automatic tuning is carried out to achieve the effect of improving the sound quality.
(FR) La présente invention concerne un procédé d’optimisation audio basé sur un algorithme, un terminal intelligent et un dispositif de stockage. Le procédé comprend : la conversion à l’avance d’un fichier audio original dans un domaine temporel en un fichier audio dans un domaine fréquentiel au moyen d’une transformée de Fourier (S100) ; l’extraction d’une plage de fréquences et d’informations d’amplitude d’un signal audio et la mise en correspondance de celles-ci avec des plages de fréquences et des informations d’amplitude d’une pluralité de différents types de sources sonores standard de test audio existantes pour déterminer le type du signal audio (S200) ; et la mise en correspondance d’une fonction de mappage de fréquences correspondante au moyen d’une bibliothèque de fonctions pour transformée pour obtenir un fichier audio traité selon le type du signal audio, et l’obtention d’un fichier audio optimisé au moyen d’une transformée de Fourier inverse (S300). Avec la présente invention, un type similaire de source sonore est recherché par comparaison et mise en correspondance d’un son audio original avec une source sonore standard, et ensuite une fonction de mappage de fréquences pour transformée est déterminée, la fréquence est mappée, la fréquence pertinente est compressée ou étendue, et un accord automatique est exécuté pour améliorer la qualité sonore.
(ZH) 一种基于算法的音频优化方法、智能终端及存储装置,方法包括:预先将时域上的原始音频文件通过傅里叶变换转换为频域上的音频文件(S100);提取音频信号的频率范围和频幅信息,与已存在的多种不同类型的音频测试标准音源的频率范围和频幅信息匹配,确定音频信号的类型(S200);根据音频信号的类型,通过函数库匹配对应的频率映射函数转换得到处理后的音频文件,再通过傅里叶逆变换得到优化的音频文件(S300)。通过原始音频与标准音源的对比匹配,寻找相近的音源类型,进而确定变换的频率映射函数,将频率进行映射,压缩或扩展相关频率,自动进行调音,达到改善音质的效果。
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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 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: Chinese (ZH)
Filing Language: Chinese (ZH)