FI20011068A0 - Active sound-absorbing structure - Google Patents

Active sound-absorbing structure

Info

Publication number
FI20011068A0
FI20011068A0 FI20011068A FI20011068A FI20011068A0 FI 20011068 A0 FI20011068 A0 FI 20011068A0 FI 20011068 A FI20011068 A FI 20011068A FI 20011068 A FI20011068 A FI 20011068A FI 20011068 A0 FI20011068 A0 FI 20011068A0
Authority
FI
Finland
Prior art keywords
absorbing structure
active sound
sound
active
absorbing
Prior art date
Application number
FI20011068A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI110896B (en
FI20011068A (en
Inventor
Marko Antila
Hannu Nykaenen
Ari Saarinen
Jukka Lekkala
Original Assignee
Valtion Teknillinen
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 Valtion Teknillinen filed Critical Valtion Teknillinen
Priority to FI20011068A priority Critical patent/FI110896B/en
Publication of FI20011068A0 publication Critical patent/FI20011068A0/en
Priority to PCT/FI2002/000419 priority patent/WO2002095725A1/en
Publication of FI20011068A publication Critical patent/FI20011068A/en
Application granted granted Critical
Publication of FI110896B publication Critical patent/FI110896B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • 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
    • G10K11/17861—Methods, e.g. algorithms; Devices using additional means for damping sound, e.g. using sound absorbing panels
    • 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
    • G10K11/1787—General system configurations
    • G10K11/17875—General system configurations using an error signal without a reference signal, e.g. pure feedback
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/247—Active noise-suppression

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
FI20011068A 2001-05-21 2001-05-21 Sound active damping construction FI110896B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20011068A FI110896B (en) 2001-05-21 2001-05-21 Sound active damping construction
PCT/FI2002/000419 WO2002095725A1 (en) 2001-05-21 2002-05-16 A construction for active sound attenuation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20011068 2001-05-21
FI20011068A FI110896B (en) 2001-05-21 2001-05-21 Sound active damping construction

Publications (3)

Publication Number Publication Date
FI20011068A0 true FI20011068A0 (en) 2001-05-21
FI20011068A FI20011068A (en) 2002-11-22
FI110896B FI110896B (en) 2003-04-15

Family

ID=8561244

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20011068A FI110896B (en) 2001-05-21 2001-05-21 Sound active damping construction

Country Status (2)

Country Link
FI (1) FI110896B (en)
WO (1) WO2002095725A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009024343A1 (en) * 2009-06-09 2010-12-16 Rohde & Schwarz Gmbh & Co. Kg Electronic device with noise suppression system
CN102691455A (en) * 2011-03-22 2012-09-26 上海华晖新材料科技有限公司 Doorframe apparatus
DE102016007391A1 (en) * 2016-06-17 2017-12-21 Oaswiss AG (i. G.) Anti-sound arrangement
CN112447164A (en) * 2019-09-02 2021-03-05 欧菲光集团股份有限公司 Noise reduction device and vehicle
IT202000025033A1 (en) * 2020-10-22 2022-04-22 E Novia S P A APPARATUS AND METHOD FOR THE ACTIVE CANCELLATION OF NOISE IN A CLOSED ENVIRONMENT
DE202021001457U1 (en) 2021-04-20 2021-06-16 Frank Sekura Sound-absorbing element for window reveals

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472305A (en) * 1968-04-30 1969-10-14 Mary S Lefes Soundproof and heatproof slat for venetian blinds
US4884615A (en) * 1988-09-27 1989-12-05 Hsu Henry C Sound absorbent slats for window blinds
US5315661A (en) * 1992-08-12 1994-05-24 Noise Cancellation Technologies, Inc. Active high transmission loss panel
JP3510427B2 (en) * 1996-08-15 2004-03-29 三菱重工業株式会社 Active sound absorbing wall
JPH10266734A (en) * 1997-03-26 1998-10-06 Toda Constr Co Ltd Sound-absorbing blind
EP0999540A1 (en) * 1998-11-03 2000-05-10 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Noise reduction panel arrangement and method of calibrating such a panel arrangement

Also Published As

Publication number Publication date
FI110896B (en) 2003-04-15
WO2002095725A1 (en) 2002-11-28
FI20011068A (en) 2002-11-22

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Legal Events

Date Code Title Description
MM Patent lapsed