NO175798C - Fremgangsmåte og anordning til aktiv stöydemping i et lokalt område - Google Patents

Fremgangsmåte og anordning til aktiv stöydemping i et lokalt område

Info

Publication number
NO175798C
NO175798C NO922911A NO922911A NO175798C NO 175798 C NO175798 C NO 175798C NO 922911 A NO922911 A NO 922911A NO 922911 A NO922911 A NO 922911A NO 175798 C NO175798 C NO 175798C
Authority
NO
Norway
Prior art keywords
loudspeaker
pct
microphones
dsp
noise
Prior art date
Application number
NO922911A
Other languages
English (en)
Norwegian (no)
Other versions
NO175798B (no
NO922911L (no
NO922911D0 (no
Inventor
Asbjoern Krokstad
Odd K Oestern Pettersen
Svein Soersdal
Original Assignee
Sinvent As
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 Sinvent As filed Critical Sinvent As
Priority to NO922911A priority Critical patent/NO175798C/no
Publication of NO922911D0 publication Critical patent/NO922911D0/no
Priority to JP50396394A priority patent/JP3418705B2/ja
Priority to DE69314642T priority patent/DE69314642T2/de
Priority to AU45908/93A priority patent/AU4590893A/en
Priority to EP93916308A priority patent/EP0651907B1/en
Priority to US08/374,578 priority patent/US5559893A/en
Priority to PCT/NO1993/000114 priority patent/WO1994002935A1/en
Priority to AT93916308T priority patent/ATE159372T1/de
Publication of NO922911L publication Critical patent/NO922911L/no
Publication of NO175798B publication Critical patent/NO175798B/no
Publication of NO175798C publication Critical patent/NO175798C/no

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17873—General system configurations using a reference signal without an error signal, e.g. pure feedforward
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17853—Methods, e.g. algorithms; Devices of the filter
    • G10K11/17854—Methods, e.g. algorithms; Devices of the filter the filter being an adaptive filter
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17857—Geometric disposition, e.g. placement of microphones
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/128—Vehicles
    • G10K2210/1282—Automobiles
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3045—Multiple acoustic inputs, single acoustic output
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/321—Physical
    • G10K2210/3217—Collocated sensor and cancelling actuator, e.g. "virtual earth" designs
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/321—Physical
    • G10K2210/3221—Headrests, seats or the like, for personal ANC systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Noise Elimination (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Soil Working Implements (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Burglar Alarm Systems (AREA)
  • Rehabilitation Tools (AREA)
  • Push-Button Switches (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Communication Control (AREA)
NO922911A 1992-07-22 1992-07-22 Fremgangsmåte og anordning til aktiv stöydemping i et lokalt område NO175798C (no)

Priority Applications (8)

Application Number Priority Date Filing Date Title
NO922911A NO175798C (no) 1992-07-22 1992-07-22 Fremgangsmåte og anordning til aktiv stöydemping i et lokalt område
AT93916308T ATE159372T1 (de) 1992-07-22 1993-07-09 Verfahren und gerät zur aktiven lärmverminderung im nahbereich
JP50396394A JP3418705B2 (ja) 1992-07-22 1993-07-09 局部領域における能動騒音低減方法及び装置
DE69314642T DE69314642T2 (de) 1992-07-22 1993-07-09 Verfahren und gerät zur aktiven lärmverminderung im nahbereich
AU45908/93A AU4590893A (en) 1992-07-22 1993-07-09 Method and device for active noise reduction in a local area
EP93916308A EP0651907B1 (en) 1992-07-22 1993-07-09 Method and device for active noise reduction in a local area
US08/374,578 US5559893A (en) 1992-07-22 1993-07-09 Method and device for active noise reduction in a local area
PCT/NO1993/000114 WO1994002935A1 (en) 1992-07-22 1993-07-09 Method and device for active noise reduction in a local area

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO922911A NO175798C (no) 1992-07-22 1992-07-22 Fremgangsmåte og anordning til aktiv stöydemping i et lokalt område

Publications (4)

Publication Number Publication Date
NO922911D0 NO922911D0 (no) 1992-07-22
NO922911L NO922911L (no) 1994-01-24
NO175798B NO175798B (no) 1994-08-29
NO175798C true NO175798C (no) 1994-12-07

Family

ID=19895325

Family Applications (1)

Application Number Title Priority Date Filing Date
NO922911A NO175798C (no) 1992-07-22 1992-07-22 Fremgangsmåte og anordning til aktiv stöydemping i et lokalt område

Country Status (8)

Country Link
US (1) US5559893A (ja)
EP (1) EP0651907B1 (ja)
JP (1) JP3418705B2 (ja)
AT (1) ATE159372T1 (ja)
AU (1) AU4590893A (ja)
DE (1) DE69314642T2 (ja)
NO (1) NO175798C (ja)
WO (1) WO1994002935A1 (ja)

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Also Published As

Publication number Publication date
NO175798B (no) 1994-08-29
JP3418705B2 (ja) 2003-06-23
NO922911L (no) 1994-01-24
WO1994002935A1 (en) 1994-02-03
EP0651907B1 (en) 1997-10-15
DE69314642D1 (de) 1997-11-20
EP0651907A1 (en) 1995-05-10
JPH07509075A (ja) 1995-10-05
NO922911D0 (no) 1992-07-22
AU4590893A (en) 1994-02-14
US5559893A (en) 1996-09-24
DE69314642T2 (de) 1998-05-14
ATE159372T1 (de) 1997-11-15

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