NL8300671A - Automatisch egalisatiesysteem met dtf of fft. - Google Patents

Automatisch egalisatiesysteem met dtf of fft. Download PDF

Info

Publication number
NL8300671A
NL8300671A NL8300671A NL8300671A NL8300671A NL 8300671 A NL8300671 A NL 8300671A NL 8300671 A NL8300671 A NL 8300671A NL 8300671 A NL8300671 A NL 8300671A NL 8300671 A NL8300671 A NL 8300671A
Authority
NL
Netherlands
Prior art keywords
signal
input
unit
frequency
transfer function
Prior art date
Application number
NL8300671A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL8300671A priority Critical patent/NL8300671A/nl
Priority to US06/579,737 priority patent/US4628530A/en
Priority to DK079484A priority patent/DK157645B/da
Priority to AU24736/84A priority patent/AU565544B2/en
Priority to KR1019840000800A priority patent/KR910002199B1/ko
Priority to DE8484200221T priority patent/DE3471226D1/de
Priority to CA000447837A priority patent/CA1210095A/en
Priority to JP59028837A priority patent/JPH0787633B2/ja
Priority to EP84200221A priority patent/EP0119645B1/en
Publication of NL8300671A publication Critical patent/NL8300671A/nl
Priority to SG502/90A priority patent/SG50290G/en

Links

Classifications

    • 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/165—Equalizers; Volume or gain control in limited frequency bands
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/12—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices
    • H03G9/18—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for tone control and volume expansion or compression
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Quality & Reliability (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Stereophonic System (AREA)
NL8300671A 1983-02-23 1983-02-23 Automatisch egalisatiesysteem met dtf of fft. NL8300671A (nl)

Priority Applications (10)

Application Number Priority Date Filing Date Title
NL8300671A NL8300671A (nl) 1983-02-23 1983-02-23 Automatisch egalisatiesysteem met dtf of fft.
US06/579,737 US4628530A (en) 1983-02-23 1984-02-13 Automatic equalizing system with DFT and FFT
DK079484A DK157645B (da) 1983-02-23 1984-02-20 System til automatisk udligning ved diskret fourier-transformation (dft) eller hurtig fourier-transformation (eft).
AU24736/84A AU565544B2 (en) 1983-02-23 1984-02-20 Automatic equalizing system with dft or fft
KR1019840000800A KR910002199B1 (ko) 1983-02-23 1984-02-20 자동등화장치
DE8484200221T DE3471226D1 (en) 1983-02-23 1984-02-20 Automatic equalizing system with discrete fourier transform (dft) or fast fourier transform (fft)
CA000447837A CA1210095A (en) 1983-02-23 1984-02-20 Automatic equalizing system with dft or fft
JP59028837A JPH0787633B2 (ja) 1983-02-23 1984-02-20 電気−音響変換装置
EP84200221A EP0119645B1 (en) 1983-02-23 1984-02-20 Automatic equalizing system with discrete fourier transform (dft) or fast fourier transform (fft)
SG502/90A SG50290G (en) 1983-02-23 1990-07-04 Automatic equalizing system with discrete fourier transform(dft)or fast fourier transform(fft)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8300671 1983-02-23
NL8300671A NL8300671A (nl) 1983-02-23 1983-02-23 Automatisch egalisatiesysteem met dtf of fft.

Publications (1)

Publication Number Publication Date
NL8300671A true NL8300671A (nl) 1984-09-17

Family

ID=19841459

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8300671A NL8300671A (nl) 1983-02-23 1983-02-23 Automatisch egalisatiesysteem met dtf of fft.

Country Status (10)

Country Link
US (1) US4628530A (ja)
EP (1) EP0119645B1 (ja)
JP (1) JPH0787633B2 (ja)
KR (1) KR910002199B1 (ja)
AU (1) AU565544B2 (ja)
CA (1) CA1210095A (ja)
DE (1) DE3471226D1 (ja)
DK (1) DK157645B (ja)
NL (1) NL8300671A (ja)
SG (1) SG50290G (ja)

Families Citing this family (86)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0206458B1 (en) * 1985-04-17 1992-07-01 Geoquip Security Systems Limited Vibration-sensitive transducer
NL8501834A (nl) * 1985-06-26 1987-01-16 Philips Nv Egalisatie-inrichting met verschuifbare bandfilters en een digitaal filter eventueel te gebruiken in de egalisatie-inrichting.
DE3630692A1 (de) * 1985-09-10 1987-04-30 Canon Kk Tonsignaluebertragungssystem
JPH0720310B2 (ja) * 1985-10-23 1995-03-06 松下電器産業株式会社 音質調整装置
JPH0685599B2 (ja) * 1986-04-09 1994-10-26 松下電器産業株式会社 音場補正装置
US4852176A (en) * 1986-05-12 1989-07-25 Truhe Jr Joseph V Continuous differential signal equalizer
JPH071960B2 (ja) * 1986-07-04 1995-01-11 松下電器産業株式会社 音場補正装置およびその音場補正方法
US4823391A (en) * 1986-07-22 1989-04-18 Schwartz David M Sound reproduction system
NL8702200A (nl) * 1987-09-16 1989-04-17 Philips Nv Werkwijze en een inrichting voor het instellen van de overdrachtskarakteristiek naar twee luisterposities in een ruimte
DE3741253A1 (de) * 1987-12-05 1989-06-15 Blaupunkt Werke Gmbh Verfahren und schaltungsanordnung zur selbsttaetigen stoergeraeuschabhaengigen lautstaerkeregelung
GB8816364D0 (en) * 1988-07-08 1988-08-10 Univ Southampton Improvements in/relating to sound reproduction systems
EP0434691B1 (en) * 1988-07-08 1995-03-22 Adaptive Audio Limited Improvements in or relating to sound reproduction systems
US5046101A (en) * 1989-11-14 1991-09-03 Lovejoy Controls Corp. Audio dosage control system
WO1992005501A1 (en) * 1990-09-21 1992-04-02 Cambridge Signal Technologies, Inc. System and method of producing adaptive fir digital filter with non-linear frequency resolution
US5272656A (en) * 1990-09-21 1993-12-21 Cambridge Signal Technologies, Inc. System and method of producing adaptive FIR digital filter with non-linear frequency resolution
US5228093A (en) * 1991-10-24 1993-07-13 Agnello Anthony M Method for mixing source audio signals and an audio signal mixing system
US5506910A (en) * 1994-01-13 1996-04-09 Sabine Musical Manufacturing Company, Inc. Automatic equalizer
DE19580412C1 (de) * 1994-04-30 1998-10-22 Deutsch Zentr Luft & Raumfahrt Verfahren und Vorrichtung zur Kompensation akustischer Verfälschungen infolge der Raumakustik bei der Tonwiedergabe durch elektro-akustische Wiedergabegeräte
GB2292854B (en) * 1994-08-12 1999-08-25 Motorola Ltd Electronic audio device and method of operation
DE4432532A1 (de) * 1994-09-13 1996-03-14 Stn Atlas Elektronik Gmbh Verfahren zur Befreiung von Körperschallstörungen
JPH0890987A (ja) * 1994-09-26 1996-04-09 Yoshiro Yanagisawa 回転黒板
KR100412171B1 (ko) * 1995-04-03 2004-04-28 코닌클리케 필립스 일렉트로닉스 엔.브이. 신호증폭시스템,신호처리시스템및출력신호도출방법
JPH10271595A (ja) * 1997-03-21 1998-10-09 Nec Corp 帰還があるスピーカ装置
US6115476A (en) * 1998-06-30 2000-09-05 Intel Corporation Active digital audio/video signal modification to correct for playback system deficiencies
US6111957A (en) * 1998-07-02 2000-08-29 Acoustic Technologies, Inc. Apparatus and method for adjusting audio equipment in acoustic environments
GB0023207D0 (en) * 2000-09-21 2000-11-01 Royal College Of Art Apparatus for acoustically improving an environment
US7158643B2 (en) * 2000-04-21 2007-01-02 Keyhold Engineering, Inc. Auto-calibrating surround system
US7110558B1 (en) * 2000-10-30 2006-09-19 Verizon Corporate Services Group Inc. Systems and methods for automatically adjusting the volume of an audio source
GB0100444D0 (en) * 2001-01-09 2001-02-21 Roke Manor Research Improvements in or relating to hi-fi audio systems
DE10105184A1 (de) * 2001-02-06 2002-08-29 Bosch Gmbh Robert Verfahren zum automatischen Einstellen eines digitalen Equalizers und Wiedergabeeinrichtung für Audiosignale zur Realisierung eines solchen Verfahrens
US6937648B2 (en) * 2001-04-03 2005-08-30 Yitran Communications Ltd Equalizer for communication over noisy channels
US20040252844A1 (en) * 2001-05-09 2004-12-16 Christensen Knud Bank Method of interacting with the acoustical modal structure of a room
US20020196951A1 (en) * 2001-06-26 2002-12-26 Kuo-Liang Tsai System for automatically performing a frequency response equalization tuning on speaker of electronic device
US7483540B2 (en) * 2002-03-25 2009-01-27 Bose Corporation Automatic audio system equalizing
CN100481722C (zh) 2002-06-05 2009-04-22 索尼克焦点公司 声虚拟现实引擎中增强传送音的系统和方法
MXPA05009695A (es) * 2003-03-10 2006-03-08 Daniel E Cohen Almohadilla y sistema para la transmision de sonido y vibracion.
US8668045B2 (en) * 2003-03-10 2014-03-11 Daniel E. Cohen Sound and vibration transmission pad and system
US7553288B2 (en) * 2003-03-10 2009-06-30 Cohen Daniel E Sound and vibration transmission pad and system
US7194096B2 (en) * 2003-06-25 2007-03-20 Intel Corporation Method and apparatus for adaptively pre-shaping audio signal to accommodate loudspeaker characteristics
US7333618B2 (en) * 2003-09-24 2008-02-19 Harman International Industries, Incorporated Ambient noise sound level compensation
JP2007509558A (ja) * 2003-10-24 2007-04-12 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 適応型音声再生
JP4568536B2 (ja) * 2004-03-17 2010-10-27 ソニー株式会社 測定装置、測定方法、プログラム
EP1591995B1 (en) * 2004-04-29 2019-06-19 Harman Becker Automotive Systems GmbH Indoor communication system for a vehicular cabin
LV13342B (en) * 2005-05-18 2005-10-20 Real Sound Lab Sia Method and device for correction of acoustic parameters of electro-acoustic transducers
DE102005028742B3 (de) * 2005-06-21 2006-09-21 Siemens Audiologische Technik Gmbh Hörhilfegerät mit Mitteln zur Rückkopplungskompensation und Verfahren zur Rückkopplungsunterdrückung
JP4770440B2 (ja) 2005-12-13 2011-09-14 ソニー株式会社 信号処理装置、信号処理方法
US8150069B2 (en) * 2006-03-31 2012-04-03 Sony Corporation Signal processing apparatus, signal processing method, and sound field correction system
JP4285531B2 (ja) 2006-11-29 2009-06-24 ソニー株式会社 信号処理装置、信号処理方法、プログラム
JP4466658B2 (ja) 2007-02-05 2010-05-26 ソニー株式会社 信号処理装置、信号処理方法、プログラム
DE102007031677B4 (de) * 2007-07-06 2010-05-20 Sda Software Design Ahnert Gmbh Verfahren und Vorrichtung zum Ermitteln einer raumakustischen Impulsantwort in der Zeitdomäne
DE102008053721A1 (de) * 2008-10-29 2010-05-12 Trident Microsystems (Far East) Ltd. Verfahren und Anordnung zur Optimierung des Übertragungsverhaltens von Lautsprechersystemen in einem Gerät der Unterhaltungselektronik
JP2010259008A (ja) * 2009-04-28 2010-11-11 Toshiba Corp 信号処理装置、音響装置及び信号処理方法
US9060222B2 (en) * 2009-06-11 2015-06-16 Sda Software Design Ahnert Gmbh Method for determining an averaged frequency-dependent transmission function for a disturbed linear time-invariant system, evaluation device and computer program product
FR2955442B1 (fr) * 2010-01-21 2016-02-26 Canon Kk Procede de determination de filtrage, dispositif et programme d'ordinateur associes
WO2011120575A1 (en) * 2010-03-31 2011-10-06 Innovationszentrum Apparatus and method for converting an analog time domain signal into a digital frequency domain signal, and apparatus and method for converting an analog time domain signal into a digital time domain signal
JP2012186676A (ja) * 2011-03-07 2012-09-27 Sony Corp 信号処理装置および信号処理方法
US9060237B2 (en) * 2011-06-29 2015-06-16 Harman International Industries, Incorporated Musical measurement stimuli
JP2013102411A (ja) * 2011-10-14 2013-05-23 Sony Corp 音声信号処理装置、および音声信号処理方法、並びにプログラム
GB201121077D0 (en) 2011-12-08 2012-01-18 Sontia Logic Ltd Reducing resonance
US9084058B2 (en) 2011-12-29 2015-07-14 Sonos, Inc. Sound field calibration using listener localization
US9219460B2 (en) 2014-03-17 2015-12-22 Sonos, Inc. Audio settings based on environment
US9106192B2 (en) 2012-06-28 2015-08-11 Sonos, Inc. System and method for device playback calibration
US9706323B2 (en) 2014-09-09 2017-07-11 Sonos, Inc. Playback device calibration
US20140095161A1 (en) * 2012-09-28 2014-04-03 At&T Intellectual Property I, L.P. System and method for channel equalization using characteristics of an unknown signal
WO2014100012A1 (en) * 2012-12-20 2014-06-26 The Regents Of The University Of California Electrostatic graphene speaker
US9357302B2 (en) * 2014-02-18 2016-05-31 Maxim Integrated Products, Inc. System and method for extracting parameters of a speaker without using stimulus
US9264839B2 (en) 2014-03-17 2016-02-16 Sonos, Inc. Playback device configuration based on proximity detection
US10027299B2 (en) * 2014-08-25 2018-07-17 Lenovo (Singapore) Pte. Ltd. Volume control
US9952825B2 (en) 2014-09-09 2018-04-24 Sonos, Inc. Audio processing algorithms
US10664224B2 (en) 2015-04-24 2020-05-26 Sonos, Inc. Speaker calibration user interface
US9538305B2 (en) 2015-07-28 2017-01-03 Sonos, Inc. Calibration error conditions
CN111314826B (zh) 2015-09-17 2021-05-14 搜诺思公司 由计算设备执行的方法及相应计算机可读介质和计算设备
US9693165B2 (en) 2015-09-17 2017-06-27 Sonos, Inc. Validation of audio calibration using multi-dimensional motion check
US9743207B1 (en) 2016-01-18 2017-08-22 Sonos, Inc. Calibration using multiple recording devices
US10003899B2 (en) 2016-01-25 2018-06-19 Sonos, Inc. Calibration with particular locations
US11106423B2 (en) 2016-01-25 2021-08-31 Sonos, Inc. Evaluating calibration of a playback device
US9860662B2 (en) 2016-04-01 2018-01-02 Sonos, Inc. Updating playback device configuration information based on calibration data
US9864574B2 (en) 2016-04-01 2018-01-09 Sonos, Inc. Playback device calibration based on representation spectral characteristics
US9763018B1 (en) 2016-04-12 2017-09-12 Sonos, Inc. Calibration of audio playback devices
US9794710B1 (en) 2016-07-15 2017-10-17 Sonos, Inc. Spatial audio correction
US10372406B2 (en) 2016-07-22 2019-08-06 Sonos, Inc. Calibration interface
US10459684B2 (en) * 2016-08-05 2019-10-29 Sonos, Inc. Calibration of a playback device based on an estimated frequency response
US10878797B2 (en) * 2017-09-15 2020-12-29 Harman International Industries, Incorporated Frequency-based causality binary limiter for active noise control systems
US10299061B1 (en) 2018-08-28 2019-05-21 Sonos, Inc. Playback device calibration
US11206484B2 (en) 2018-08-28 2021-12-21 Sonos, Inc. Passive speaker authentication
US10734965B1 (en) 2019-08-12 2020-08-04 Sonos, Inc. Audio calibration of a portable playback device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973112A (en) * 1974-07-29 1976-08-03 Time/Data Corporation System for determining transfer function
JPS53120401A (en) * 1977-03-29 1978-10-20 Matsushita Electric Ind Co Ltd Sound reproducing system
US4209672A (en) * 1977-07-15 1980-06-24 Tokyo Shibaura Denki Kabushiki Kaisha Method and apparatus for measuring characteristics of a loudspeaker
JPS5439120A (en) * 1977-07-15 1979-03-26 Toshiba Corp Speaker characteristics measuring device
JPS5630397A (en) * 1979-08-21 1981-03-26 Yoshio Yamazaki Additional device for howling prevention
US4306113A (en) * 1979-11-23 1981-12-15 Morton Roger R A Method and equalization of home audio systems
US4316060A (en) * 1980-01-04 1982-02-16 Dbx, Inc. Equalizing system
US4458362A (en) * 1982-05-13 1984-07-03 Teledyne Industries, Inc. Automatic time domain equalization of audio signals
US4549289A (en) * 1983-06-20 1985-10-22 Jack Schwartz Method for correcting acoustic distortion

Also Published As

Publication number Publication date
JPS59158700A (ja) 1984-09-08
US4628530A (en) 1986-12-09
DK157645B (da) 1990-01-29
DK79484D0 (da) 1984-02-20
KR840008072A (ko) 1984-12-12
DE3471226D1 (en) 1988-06-16
CA1210095A (en) 1986-08-19
AU2473684A (en) 1984-08-30
DK79484A (da) 1984-08-24
AU565544B2 (en) 1987-09-17
EP0119645A1 (en) 1984-09-26
SG50290G (en) 1990-08-31
JPH0787633B2 (ja) 1995-09-20
EP0119645B1 (en) 1988-05-11
KR910002199B1 (ko) 1991-04-06

Similar Documents

Publication Publication Date Title
NL8300671A (nl) Automatisch egalisatiesysteem met dtf of fft.
US4823391A (en) Sound reproduction system
CN101416533B (zh) 在音频系统中的方法和设备
JP5894979B2 (ja) 音声信号を使用した距離推定
RU2419963C2 (ru) Способ коррекции воспроизведения акустического сигнала электроакустическим преобразователем и устройство для его осуществления
US7577262B2 (en) Microphone device and audio player
US20160105758A1 (en) Sound source replication system
US8300837B2 (en) System and method for compensating memoryless non-linear distortion of an audio transducer
US20160066088A1 (en) Utilizing level differences for speech enhancement
US20070121955A1 (en) Room acoustics correction device
CN100525101C (zh) 使用波束形成算法来记录信号的方法和设备
US7046812B1 (en) Acoustic beam forming with robust signal estimation
CN104837092A (zh) 用于电声通信设备的回声消除方法和总成
JP2005253079A (ja) 補聴器指向性マイクのマイクロフォンの位相整合方法及び装置
US7286946B2 (en) Transmission characteristic measuring device transmission characteristic measuring method, and amplifier
EP2829081B1 (en) Conferencing device self test
KR101295848B1 (ko) 어레이스피커 시스템에서 음향을 포커싱하는 장치 및 방법
Nakayama et al. Acoustic distance measurement method based on phase interference using the cross-spectral method
JP2888299B2 (ja) 可聴周波数電気信号処理装置
Benjamin Extending quasi-anechoic measurements to low frequencies
JP2003224898A (ja) 拡声明瞭度改善装置および拡声明瞭度改善方法
D’Appolito Measuring Loudspeaker Low-Frequency Response
CN104640052A (zh) 扬声器极性检测器
Boone et al. Room acoustic parameters in a physical scale model of the new music centre in Eindhoven: Measurement method and results
WO2021075108A1 (ja) 信号処理装置および方法、並びにプログラム

Legal Events

Date Code Title Description
A1B A search report has been drawn up
A85 Still pending on 85-01-01
BV The patent application has lapsed