FR2930672B1 - Procede et systeme de reconstitution de basses frequences dans un signal audio - Google Patents

Procede et systeme de reconstitution de basses frequences dans un signal audio

Info

Publication number
FR2930672B1
FR2930672B1 FR0802388A FR0802388A FR2930672B1 FR 2930672 B1 FR2930672 B1 FR 2930672B1 FR 0802388 A FR0802388 A FR 0802388A FR 0802388 A FR0802388 A FR 0802388A FR 2930672 B1 FR2930672 B1 FR 2930672B1
Authority
FR
France
Prior art keywords
frequency
audio signal
cut
low frequencies
signal
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
FR0802388A
Other languages
English (en)
Other versions
FR2930672A1 (fr
Inventor
Muynke Julien De
Benoit Pochon
Guillaume Pinto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Parrot SA
Original Assignee
Parrot SA
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
Application filed by Parrot SA filed Critical Parrot SA
Priority to FR0802388A priority Critical patent/FR2930672B1/fr
Priority to EP09290310A priority patent/EP2113913B1/fr
Priority to AT09290310T priority patent/ATE521963T1/de
Priority to ES09290310T priority patent/ES2372259T3/es
Priority to US12/432,250 priority patent/US8213636B2/en
Publication of FR2930672A1 publication Critical patent/FR2930672A1/fr
Application granted granted Critical
Publication of FR2930672B1 publication Critical patent/FR2930672B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • 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
    • G10L2021/02082—Noise filtering the noise being echo, reverberation of the speech

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Stereophonic System (AREA)
FR0802388A 2008-04-29 2008-04-29 Procede et systeme de reconstitution de basses frequences dans un signal audio Expired - Fee Related FR2930672B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR0802388A FR2930672B1 (fr) 2008-04-29 2008-04-29 Procede et systeme de reconstitution de basses frequences dans un signal audio
EP09290310A EP2113913B1 (fr) 2008-04-29 2009-04-29 Procédé et système de reconstitution de basses fréquences dans un signal audio
AT09290310T ATE521963T1 (de) 2008-04-29 2009-04-29 Verfahren und system zur wiederherstellung von niedrigfrequenzen in einem audiosignal
ES09290310T ES2372259T3 (es) 2008-04-29 2009-04-29 Procedimiento y sistema de reconstitución de bajas frecuencias en una señal de audio.
US12/432,250 US8213636B2 (en) 2008-04-29 2009-04-29 Method and a system for reconstituting low frequencies in audio signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0802388A FR2930672B1 (fr) 2008-04-29 2008-04-29 Procede et systeme de reconstitution de basses frequences dans un signal audio

Publications (2)

Publication Number Publication Date
FR2930672A1 FR2930672A1 (fr) 2009-10-30
FR2930672B1 true FR2930672B1 (fr) 2011-06-24

Family

ID=39691221

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0802388A Expired - Fee Related FR2930672B1 (fr) 2008-04-29 2008-04-29 Procede et systeme de reconstitution de basses frequences dans un signal audio

Country Status (5)

Country Link
US (1) US8213636B2 (fr)
EP (1) EP2113913B1 (fr)
AT (1) ATE521963T1 (fr)
ES (1) ES2372259T3 (fr)
FR (1) FR2930672B1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102422531B (zh) * 2009-06-29 2014-09-03 三菱电机株式会社 音频信号处理装置
US9966937B2 (en) * 2011-04-29 2018-05-08 Marvell World Trade Ltd. Frequency multipliers
CN102866296A (zh) 2011-07-08 2013-01-09 杜比实验室特许公司 估计非线性失真的方法和系统、调节参数的方法和系统
FR2980070B1 (fr) 2011-09-13 2013-11-15 Parrot Procede de renforcement des frequences graves dans un signal audio numerique.
US9712127B2 (en) 2012-01-11 2017-07-18 Richard Aylward Intelligent method and apparatus for spectral expansion of an input signal
US20140185850A1 (en) * 2013-01-02 2014-07-03 Starkey Laboratories, Inc. Method and apparatus for tonal enhancement in hearing aid
US9060223B2 (en) 2013-03-07 2015-06-16 Aphex, Llc Method and circuitry for processing audio signals
US9247342B2 (en) 2013-05-14 2016-01-26 James J. Croft, III Loudspeaker enclosure system with signal processor for enhanced perception of low frequency output
CN104778949B (zh) * 2014-01-09 2018-08-31 华硕电脑股份有限公司 音频处理方法及音频处理装置
US9333911B2 (en) * 2014-01-10 2016-05-10 Bose Corporation Engine sound management
CN108365837B (zh) * 2018-02-05 2021-11-09 中国电子科技集团公司第二十四研究所 消除脉冲信号通过隔直电容后基线变化的处理电路及方法
FR3097711B1 (fr) 2019-06-19 2022-06-24 Parrot Faurecia Automotive Sas Système audio autonome pour appui-tête de siège, appui-tête de siège et véhicule associés

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW343417B (en) * 1996-05-08 1998-10-21 Philips Eloctronics N V Circuit, audio system and method for processing signals, and a harmonics generator
US5930373A (en) * 1997-04-04 1999-07-27 K.S. Waves Ltd. Method and system for enhancing quality of sound signal
CN1158898C (zh) 1998-09-08 2004-07-21 皇家菲利浦电子有限公司 音频系统低音增强装置
US7242779B2 (en) * 2002-05-30 2007-07-10 Peavey Electronics Corporation Methods and apparatus for sub-harmonic generation, stereo expansion and distortion
CN1801611B (zh) * 2005-12-20 2010-05-05 深圳兰光电子集团有限公司 一种低音增效处理的方法和装置
US20070299655A1 (en) * 2006-06-22 2007-12-27 Nokia Corporation Method, Apparatus and Computer Program Product for Providing Low Frequency Expansion of Speech
SG144752A1 (en) * 2007-01-12 2008-08-28 Sony Corp Audio enhancement method and system
KR101310231B1 (ko) * 2007-01-18 2013-09-25 삼성전자주식회사 저음 증강 장치 및 방법

Also Published As

Publication number Publication date
ATE521963T1 (de) 2011-09-15
ES2372259T3 (es) 2012-01-17
US8213636B2 (en) 2012-07-03
EP2113913B1 (fr) 2011-08-24
FR2930672A1 (fr) 2009-10-30
EP2113913A1 (fr) 2009-11-04
US20090323983A1 (en) 2009-12-31

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Effective date: 20131231