ATE214191T1 - Verfahren und anlage zur schalldämpfung - Google Patents

Verfahren und anlage zur schalldämpfung

Info

Publication number
ATE214191T1
ATE214191T1 AT97913207T AT97913207T ATE214191T1 AT E214191 T1 ATE214191 T1 AT E214191T1 AT 97913207 T AT97913207 T AT 97913207T AT 97913207 T AT97913207 T AT 97913207T AT E214191 T1 ATE214191 T1 AT E214191T1
Authority
AT
Austria
Prior art keywords
sound
attenuation
approximation
adjusted
measurement result
Prior art date
Application number
AT97913207T
Other languages
English (en)
Inventor
Kari Kirjavainen
Jukka Lekkala
Hannu Nykaenen
Seppo Uosukainen
Original Assignee
Vtt
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 Vtt filed Critical Vtt
Application granted granted Critical
Publication of ATE214191T1 publication Critical patent/ATE214191T1/de

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
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • 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
    • 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
    • G10K2210/3026—Feedback
    • 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
    • G10K2210/3027—Feedforward

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
AT97913207T 1996-11-20 1997-11-19 Verfahren und anlage zur schalldämpfung ATE214191T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI964636A FI105602B (fi) 1996-11-20 1996-11-20 Menetelmä ja laitteisto äänen vaimentamiseksi
PCT/FI1997/000707 WO1998022933A1 (en) 1996-11-20 1997-11-19 Method and apparatus for attenuating sound

Publications (1)

Publication Number Publication Date
ATE214191T1 true ATE214191T1 (de) 2002-03-15

Family

ID=8547098

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97913207T ATE214191T1 (de) 1996-11-20 1997-11-19 Verfahren und anlage zur schalldämpfung

Country Status (6)

Country Link
EP (1) EP1002311B1 (de)
AT (1) ATE214191T1 (de)
AU (1) AU5054498A (de)
DE (1) DE69710928T2 (de)
FI (1) FI105602B (de)
WO (1) WO1998022933A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2542860B (en) * 2015-10-04 2021-10-20 Labxero Ltd Acoustic processing device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473906A (en) * 1980-12-05 1984-09-25 Lord Corporation Active acoustic attenuator
GB8328997D0 (en) * 1983-10-31 1983-11-30 Secr Defence Active noise reduction
JPH05223334A (ja) * 1992-02-14 1993-08-31 Matsushita Seiko Co Ltd 能動消音装置

Also Published As

Publication number Publication date
FI964636A0 (fi) 1996-11-20
EP1002311B1 (de) 2002-03-06
WO1998022933A1 (en) 1998-05-28
FI105602B (fi) 2000-09-15
AU5054498A (en) 1998-06-10
DE69710928T2 (de) 2002-09-19
EP1002311A1 (de) 2000-05-24
FI964636L (fi) 1998-05-21
DE69710928D1 (de) 2002-04-11

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties