BR0116844A - Processo e dispositivo de redução de ruìdo - Google Patents

Processo e dispositivo de redução de ruìdo

Info

Publication number
BR0116844A
BR0116844A BR0116844-4A BR0116844A BR0116844A BR 0116844 A BR0116844 A BR 0116844A BR 0116844 A BR0116844 A BR 0116844A BR 0116844 A BR0116844 A BR 0116844A
Authority
BR
Brazil
Prior art keywords
noise
level estimator
reducing filter
transfer function
reduction process
Prior art date
Application number
BR0116844-4A
Other languages
English (en)
Other versions
BRPI0116844B1 (pt
Inventor
Pascal Scalart
Claude Marro
Laurent Mauuary
Original Assignee
France Telecom
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8859390&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR0116844(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by France Telecom filed Critical France Telecom
Publication of BR0116844A publication Critical patent/BR0116844A/pt
Publication of BRPI0116844B1 publication Critical patent/BRPI0116844B1/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L21/00—Vacuum gauges
    • G01L21/02—Vacuum gauges having a compression chamber in which gas, whose pressure is to be measured, is compressed
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • General Physics & Mathematics (AREA)
  • Noise Elimination (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

"PROCESSO E DISPOSITIVO DE REDUçãO DE RUìDO". Em uma análise de um sinal de entrada no domínio freq³encial, se determina um estimador de nível de ruído e um estimador de nível de sinal útil em uma trama do sinal de entrada, o que permite calcular a função de transferência de um primeiro filtro redutor de ruído. Um segundo passe é feito para afinar o estimador de nível de sinal útil, combinando o espectro do sinal e a função de transferência do primeiro filtro redutor de ruído, depois para calcular a função de transferência de um segundo filtro redutor de ruído sobre a base do estimador afinado do nível de sinal útil e do estimador de nível de ruído. Este segunda filtro redutor de ruído é então utilizado para reduzir o nível de ruído na trama.
BRPI0116844-4A 2001-01-30 2001-11-19 Processo e dispositivo de redução de ruído BRPI0116844B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0101220A FR2820227B1 (fr) 2001-01-30 2001-01-30 Procede et dispositif de reduction de bruit
PCT/FR2001/003624 WO2002061731A1 (fr) 2001-01-30 2001-11-19 Procede et dispositif de reduction de bruit

Publications (2)

Publication Number Publication Date
BR0116844A true BR0116844A (pt) 2003-12-16
BRPI0116844B1 BRPI0116844B1 (pt) 2015-07-28

Family

ID=8859390

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0116844-4A BRPI0116844B1 (pt) 2001-01-30 2001-11-19 Processo e dispositivo de redução de ruído

Country Status (14)

Country Link
US (1) US7313518B2 (pt)
EP (1) EP1356461B1 (pt)
JP (1) JP4210521B2 (pt)
KR (1) KR100549133B1 (pt)
CN (1) CN1284139C (pt)
AT (1) ATE472794T1 (pt)
BR (1) BRPI0116844B1 (pt)
CA (1) CA2436318C (pt)
DE (1) DE60142490D1 (pt)
ES (1) ES2347760T3 (pt)
FR (1) FR2820227B1 (pt)
HK (1) HK1057639A1 (pt)
MX (1) MXPA03006667A (pt)
WO (1) WO2002061731A1 (pt)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8073689B2 (en) * 2003-02-21 2011-12-06 Qnx Software Systems Co. Repetitive transient noise removal
US7885420B2 (en) 2003-02-21 2011-02-08 Qnx Software Systems Co. Wind noise suppression system
US7895036B2 (en) 2003-02-21 2011-02-22 Qnx Software Systems Co. System for suppressing wind noise
US7725315B2 (en) 2003-02-21 2010-05-25 Qnx Software Systems (Wavemakers), Inc. Minimization of transient noises in a voice signal
US8326621B2 (en) 2003-02-21 2012-12-04 Qnx Software Systems Limited Repetitive transient noise removal
US7949522B2 (en) 2003-02-21 2011-05-24 Qnx Software Systems Co. System for suppressing rain noise
US8271279B2 (en) 2003-02-21 2012-09-18 Qnx Software Systems Limited Signature noise removal
US7778425B2 (en) * 2003-12-24 2010-08-17 Nokia Corporation Method for generating noise references for generalized sidelobe canceling
US7516069B2 (en) * 2004-04-13 2009-04-07 Texas Instruments Incorporated Middle-end solution to robust speech recognition
EP1591995B1 (en) * 2004-04-29 2019-06-19 Harman Becker Automotive Systems GmbH Indoor communication system for a vehicular cabin
ATE476733T1 (de) * 2004-09-16 2010-08-15 France Telecom Verfahren zum verarbeiten eines rauschbehafteten tonsignals und einrichtung zur implementierung des verfahrens
US7383179B2 (en) * 2004-09-28 2008-06-03 Clarity Technologies, Inc. Method of cascading noise reduction algorithms to avoid speech distortion
KR100565086B1 (ko) * 2004-10-13 2006-03-30 삼성전자주식회사 뮤지컬 잡음을 감쇄하는 스펙트럼 잡음 제거 방법 및 그장치
WO2006079349A1 (en) * 2005-01-31 2006-08-03 Sonorit Aps Method for weighted overlap-add
FR2888458A1 (fr) * 2005-07-11 2007-01-12 France Telecom Procede et dispositif de prise de son, notamment dans des terminaux telephoniques en "mains libres"
JP4765461B2 (ja) * 2005-07-27 2011-09-07 日本電気株式会社 雑音抑圧システムと方法及びプログラム
CA2640683C (en) * 2006-01-31 2014-10-21 Canadian Space Agency Method and system for increasing signal-to-noise ratio
JP4827661B2 (ja) * 2006-08-30 2011-11-30 富士通株式会社 信号処理方法及び装置
JP4653059B2 (ja) * 2006-11-10 2011-03-16 オリンパス株式会社 撮像システム、画像処理プログラム
DE602007004217D1 (de) * 2007-08-31 2010-02-25 Harman Becker Automotive Sys Schnelle Schätzung der Spektraldichte der Rauschleistung zur Sprachsignalverbesserung
ATE456130T1 (de) * 2007-10-29 2010-02-15 Harman Becker Automotive Sys Partielle sprachrekonstruktion
US20100151118A1 (en) * 2008-12-17 2010-06-17 Eastman Chemical Company Carrier solvent compositions, coatings compositions, and methods to produce thick polymer coatings
WO2013046055A1 (en) * 2011-09-30 2013-04-04 Audionamix Extraction of single-channel time domain component from mixture of coherent information
US9173025B2 (en) 2012-02-08 2015-10-27 Dolby Laboratories Licensing Corporation Combined suppression of noise, echo, and out-of-location signals
US8712076B2 (en) 2012-02-08 2014-04-29 Dolby Laboratories Licensing Corporation Post-processing including median filtering of noise suppression gains
WO2012126415A2 (zh) * 2012-05-04 2012-09-27 华为技术有限公司 一种信号发送方法、通信设备及系统
CN103916730B (zh) * 2013-01-05 2017-03-08 中国科学院声学研究所 一种能够改善音质的声场聚焦方法及系统
CN103916733B (zh) * 2013-01-05 2017-09-26 中国科学院声学研究所 基于均方误差最小准则的声能量对比控制方法及系统
US9318125B2 (en) * 2013-01-15 2016-04-19 Intel Deutschland Gmbh Noise reduction devices and noise reduction methods
RU2675777C2 (ru) * 2013-06-21 2018-12-24 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Устройство и способ улучшенного плавного изменения сигнала в различных областях во время маскирования ошибок
US10149047B2 (en) * 2014-06-18 2018-12-04 Cirrus Logic Inc. Multi-aural MMSE analysis techniques for clarifying audio signals
US10789967B2 (en) 2016-05-09 2020-09-29 Harman International Industries, Incorporated Noise detection and noise reduction
CN108848435B (zh) * 2018-09-28 2021-03-09 广州方硅信息技术有限公司 一种音频信号的处理方法和相关装置
CN110010144A (zh) * 2019-04-24 2019-07-12 厦门亿联网络技术股份有限公司 语音信号增强方法及装置
CN111402917B (zh) * 2020-03-13 2023-08-04 北京小米松果电子有限公司 音频信号处理方法及装置、存储介质
CN111968615A (zh) * 2020-08-31 2020-11-20 Oppo广东移动通信有限公司 降噪处理方法及装置、终端设备和可读存储介质
US12062369B2 (en) * 2020-09-25 2024-08-13 Intel Corporation Real-time dynamic noise reduction using convolutional networks
CN112489615B (zh) * 2020-10-29 2024-06-18 宁波方太厨具有限公司 降噪方法、降噪系统、降噪装置及吸油烟机
CN112960012B (zh) * 2021-02-03 2022-05-31 中国铁道科学研究院集团有限公司节能环保劳卫研究所 基于阈值归一化短时功率谱密度的高速铁路钢轨波磨声学诊断方法
KR102704879B1 (ko) 2022-10-06 2024-09-09 주식회사 라우드에이아이 센싱신호로부터 노이즈를 제거하기 위한 장치 및 노이즈 제거하기 위한 방법
CN116952355B (zh) * 2023-07-24 2024-05-14 中国人民解放军海军工程大学 一种浅海环境近场辐射噪声测量系统及终端
CN116952356B (zh) * 2023-07-24 2024-08-06 中国人民解放军海军工程大学 基于浅海环境水下声全息技术的近场辐射噪声测量方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5630013A (en) * 1993-01-25 1997-05-13 Matsushita Electric Industrial Co., Ltd. Method of and apparatus for performing time-scale modification of speech signals
FR2726392B1 (fr) * 1994-10-28 1997-01-10 Alcatel Mobile Comm France Procede et dispositif de suppression de bruit dans un signal de parole, et systeme avec annulation d'echo correspondant
FR2729247A1 (fr) * 1995-01-06 1996-07-12 Matra Communication Procede de codage de parole a analyse par synthese
JP2760373B2 (ja) * 1995-03-03 1998-05-28 日本電気株式会社 雑音消去装置
JP2874679B2 (ja) 1997-01-29 1999-03-24 日本電気株式会社 雑音消去方法及びその装置
US5999561A (en) * 1997-05-20 1999-12-07 Sanconix, Inc. Direct sequence spread spectrum method, computer-based product, apparatus and system tolerant to frequency reference offset
FR2771542B1 (fr) * 1997-11-21 2000-02-11 Sextant Avionique Procede de filtrage frequentiel applique au debruitage de signaux sonores mettant en oeuvre un filtre de wiener
US6549586B2 (en) * 1999-04-12 2003-04-15 Telefonaktiebolaget L M Ericsson System and method for dual microphone signal noise reduction using spectral subtraction
US6792405B2 (en) * 1999-12-10 2004-09-14 At&T Corp. Bitstream-based feature extraction method for a front-end speech recognizer

Also Published As

Publication number Publication date
HK1057639A1 (en) 2004-04-08
US20040064307A1 (en) 2004-04-01
WO2002061731A1 (fr) 2002-08-08
BRPI0116844B1 (pt) 2015-07-28
CA2436318A1 (fr) 2002-08-08
JP2004520616A (ja) 2004-07-08
CA2436318C (fr) 2007-09-04
ES2347760T3 (es) 2010-11-04
DE60142490D1 (de) 2010-08-12
US7313518B2 (en) 2007-12-25
EP1356461B1 (fr) 2010-06-30
CN1284139C (zh) 2006-11-08
FR2820227A1 (fr) 2002-08-02
EP1356461A1 (fr) 2003-10-29
KR20030074762A (ko) 2003-09-19
ATE472794T1 (de) 2010-07-15
JP4210521B2 (ja) 2009-01-21
CN1488136A (zh) 2004-04-07
FR2820227B1 (fr) 2003-04-18
MXPA03006667A (es) 2003-10-24
KR100549133B1 (ko) 2006-02-03

Similar Documents

Publication Publication Date Title
BR0116844A (pt) Processo e dispositivo de redução de ruìdo
TW571021B (en) Fixing device for a rail
BRPI0510558A (pt) verificação de validade de certificado
DK1155505T3 (da) Flerbåndstranceiver, der benytter modtager med direkte konvertering, samt tilhörende modtager med direkte konvertering
CY1110439T1 (el) Μεθοδος και συσκευη για βελτιωση της θεμελιωδους συχνοτητας αποκωδικοποιημενης ομιλιας
ATE376397T1 (de) Knochenfixationsvorrichtung
ITRM20050150A1 (it) Dispositivo innovativo per lo smorzamento delle vibrazioni meccaniche basato su gruppi di risonatori collegati in parallelo ed incoerenti in fase, in particolare adibito alla realizzazione di un nuovo materiale micro/nanostrutturato con caratteristic
BR0015621A (pt) Limpeza ultra-sÈnica
BR0004477A (pt) Acessório de viva-voz para uso com um telefone portátil
FI940202A0 (fi) Laite värähtelyjen generoimiseksi sekä sen käyttö
FR2776388B1 (fr) Utilisation de recepteurs de la famille ror pour le criblage de substances utiles pour le traitement de l'atherosclerose
DE60212617D1 (de) Vorrichtung zur sprachverbesserung
NO996139L (no) Ortogonalt montert substratbasert resonator
MA27526A1 (fr) Profile pour encadrement de porte ou de baie
BR0116843A (pt) Processo para a produção de um elemento de arranque
ATE464419T1 (de) Vorrichtung zur verminderung von schwingungen in einer waschmaschine
DE59907383D1 (de) Zentriereinrichtung für flache bauteile, insbesondere glastafeln
DE69023191D1 (de) Anordnung zur Verminderung von durch Harmonische der Taktfrequenz der numerischen Vorrichtung verursachten Radiofrequenzinterferenzen.
WO2002098291A3 (en) Method for hearing screening of newborn by means of steady state response evoked with high click rate
EP1239583A3 (en) Saw oscillator and method of operation
ATE392691T1 (de) Saiteninstrument
DE602005014503D1 (de) Ultrabreitband-hochfrequenzsender und -impulsgenerator
TW200642257A (en) Low noise block downconverter
ATE357690T1 (de) Aufwecksignal-detektorschaltung
WO2007136827A3 (en) A method for determining the damped natural frequencies of a dynamic system

Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B15K Others concerning applications: alteration of classification

Free format text: A CLASSIFICACAO ANTERIOR ERA: G10L 21/02

Ipc: G10L 15/20 (2006.01), G10L 21/0208 (2013.01)

B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 28/07/2015, OBSERVADAS AS CONDICOES LEGAIS.

B25D Requested change of name of applicant approved
B25G Requested change of headquarter approved