AU2001242932A1 - A method and a device for generating low frequency sound and use of the device - Google Patents

A method and a device for generating low frequency sound and use of the device

Info

Publication number
AU2001242932A1
AU2001242932A1 AU2001242932A AU4293201A AU2001242932A1 AU 2001242932 A1 AU2001242932 A1 AU 2001242932A1 AU 2001242932 A AU2001242932 A AU 2001242932A AU 4293201 A AU4293201 A AU 4293201A AU 2001242932 A1 AU2001242932 A1 AU 2001242932A1
Authority
AU
Australia
Prior art keywords
air pulses
during
low frequency
wave shape
pulses
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.)
Abandoned
Application number
AU2001242932A
Other languages
English (en)
Inventor
Mats Gustavsson
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.)
A2 Acoustics AB
Original Assignee
Saab AB
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 Saab AB filed Critical Saab AB
Publication of AU2001242932A1 publication Critical patent/AU2001242932A1/en
Abandoned legal-status Critical Current

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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/005—Details of transducers, loudspeakers or microphones using digitally weighted transducing elements
    • 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
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/04—Sound-producing devices

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Reciprocating Pumps (AREA)
  • Compressor (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transmitters (AREA)
AU2001242932A 2000-03-16 2001-03-16 A method and a device for generating low frequency sound and use of the device Abandoned AU2001242932A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0000863 2000-03-16
SE0000863A SE518168C2 (sv) 2000-03-16 2000-03-16 Förfarande och anordning för alstrande av ljud med låg frekvens jämte användning av en sådan anordning
PCT/SE2001/000540 WO2001069588A1 (en) 2000-03-16 2001-03-16 A method and a device for generating low frequency sound and use of the device

Publications (1)

Publication Number Publication Date
AU2001242932A1 true AU2001242932A1 (en) 2001-09-24

Family

ID=20278822

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001242932A Abandoned AU2001242932A1 (en) 2000-03-16 2001-03-16 A method and a device for generating low frequency sound and use of the device

Country Status (6)

Country Link
EP (1) EP1285432B1 (sv)
AT (1) ATE307374T1 (sv)
AU (1) AU2001242932A1 (sv)
DE (1) DE60114184D1 (sv)
SE (1) SE518168C2 (sv)
WO (1) WO2001069588A1 (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10783866B1 (en) * 2019-07-07 2020-09-22 xMEMS Labs, Inc. Sound producing device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5936480B2 (ja) * 1976-02-10 1984-09-04 ソニー株式会社 スピ−カ装置
US4161632A (en) * 1978-07-05 1979-07-17 Dan Sibalis Pneumatic acoustic transducer with ferromagnetic fluid valve
US4515997A (en) * 1982-09-23 1985-05-07 Stinger Jr Walter E Direct digital loudspeaker
SE462374B (sv) * 1988-06-29 1990-06-18 Infrasonik Ab Reglerstyrd motordriven laagfrekvensljudgenerator
DE4343807A1 (de) * 1993-12-22 1995-06-29 Guenther Nubert Elektronic Gmb Verfahren und Vorrichtung zum Unwandeln eines elektrischen in ein akustisches Signal
US5973999A (en) * 1997-09-29 1999-10-26 Maxwell Technologies Systems Division, Inc. Acoustic cannon

Also Published As

Publication number Publication date
DE60114184D1 (de) 2006-03-02
SE0000863D0 (sv) 2000-03-16
EP1285432A1 (en) 2003-02-26
SE0000863L (sv) 2001-09-17
EP1285432B1 (en) 2005-10-19
SE518168C2 (sv) 2002-09-03
WO2001069588A1 (en) 2001-09-20
ATE307374T1 (de) 2005-11-15

Similar Documents

Publication Publication Date Title
WO2003055976A3 (en) Apparatus and method for rapid disruption of cells or viruses
EP0326040A3 (en) Microphone with acoustic frequency pre-emphasis
EP1292171A3 (en) Chip microphone and method of making same
EP2182240A3 (en) A method of controlling the acoustic radiation of a ship
BG103669A (en) Acoustic device
EP1709734A1 (en) System for audio signal processing
ATE223137T1 (de) Akustische vorrichtung mit biegewellenmoden
WO2001001103A8 (en) Vibration testing apparatus and method using acoustical waves
WO2002030150A3 (en) A hearing aid with adaptive matching of input transducers
EP1571881A3 (de) Verfahren und Vorrichtung zum Anpassen der Phasen von Mikrofonen eines Hörgeräterichtmikrofons
EP1865598A3 (en) Input-gain control apparatus and method
US20080205195A1 (en) Method of Amplitude Modulating a Message Signal in the Audible Frequency Range Onto a Carrier Signal in the Ultrasonic Frequency Range
ATE350849T1 (de) Vorrichtung zur erzeugung eines phasen- und amplitudenmodulierten hochfrequenzsignals
ATE248496T1 (de) Eine methode zur regelung der richtwirkung der schallempfangscharakteristik eines hörgerätes und ein hörgerät zur ausführung der methode
ATE312497T1 (de) Hörgerät und verfahren zur verarbeitung eines klangsignals
AU2001242932A1 (en) A method and a device for generating low frequency sound and use of the device
EP1471770A3 (de) Verfahren zur Erzeugung einer angenäherten Teilübertragungsfunktion
KR20010051758A (ko) 음성 신호에서의 고조파를 생성하기 위한 장치
MY133401A (en) Automatically adjusting acoustic output of the speaker of a telephone handset
WO2000038474A3 (de) Tiefton-membranlautsprecher
CN2398793Y (zh) 超声波扬声装置
BE1007325A3 (fr) Appareil electronique particulierement adapte pour la deratisation et l'elimination des cafards et similaires.
KR20220047483A (ko) 휴대용 방음 기계
RU2198482C2 (ru) Способ получения звуковой информации
KR970017932A (ko) 반도체 소자를 처리하기 위한 장치 및 방법