EP0984659A3 - Acoustic panel - Google Patents

Acoustic panel Download PDF

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Publication number
EP0984659A3
EP0984659A3 EP99114407A EP99114407A EP0984659A3 EP 0984659 A3 EP0984659 A3 EP 0984659A3 EP 99114407 A EP99114407 A EP 99114407A EP 99114407 A EP99114407 A EP 99114407A EP 0984659 A3 EP0984659 A3 EP 0984659A3
Authority
EP
European Patent Office
Prior art keywords
baffles
segments
baffle
listening room
room
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.)
Granted
Application number
EP99114407A
Other languages
German (de)
French (fr)
Other versions
EP0984659A2 (en
EP0984659B1 (en
Inventor
Wolfgang Dr. Bachmann
Gerhard Dr. Krump
Hans-Jürgen Regl
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.)
Harman Becker Automotive Systems GmbH
Original Assignee
Harman Audio Electronic Systems GmbH
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 Harman Audio Electronic Systems GmbH filed Critical Harman Audio Electronic Systems GmbH
Publication of EP0984659A2 publication Critical patent/EP0984659A2/en
Publication of EP0984659A3 publication Critical patent/EP0984659A3/en
Application granted granted Critical
Publication of EP0984659B1 publication Critical patent/EP0984659B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • 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
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/021—Transducers or their casings adapted for mounting in or to a wall or ceiling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
    • H04R2440/01—Acoustic transducers using travelling bending waves to generate or detect sound
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

Die Erfindung befaßt sich mit der Ausbildung von Schallwänden für Großveranstaltungen. Herkömmlich werden dabei zur Schallwiedergabe eine Vielzahl von großen und schweren Lautsprecherboxen eingesetzt, was aufwendige und teure Konstruktionen zur Aufnahme dieser Boxen erfordert. Daher wird erfindungsgemäß eine segmentierte Schallwand 10 angegeben, welche im wesentlichen flach ausgebildet und außerordentlich leicht ist. Werden mehrere dieser Segmente 11' in einer Schallwand 10 integriert, indem die verschiedenen Segmente 11' gekoppelt miteinander verbunden werden, kann die gesamte Größe der Schallwand 10 zur Schallabstrahlung ausgenutzt werden, ohne daß weitere Schallquellen im Abhörraum 31 notwendig werden. Die Optimierung der verschiedenen Segmente 11' aufbestimmte Frequenzbereiche kann dadurch herbeigeführt werden, daß die jeweiligen Segmente 11' auf die entsprechenden Übertragungsfrequenzen abgestimmte Flächen- und Tiefenausdehnungen haben. Durch die Aneinanderreihung mehrerer Schallwände 10 die auf die jeweiligen Bedingungen im Abhörraum 31 sehr flexibel reagiert werden. Außerdem können die dem Abhörraum zugewandten Wiedergabeebenen 30 dieser Schallwände 10 beispielsweise durch entsprechende Aufdrucke als Werbeträger genutzt werden.

Figure imgaf001
The invention is concerned with the formation of baffles for major events. Conventionally, a variety of large and heavy speakers are used for sound reproduction, which requires complex and expensive constructions for receiving these boxes. Therefore, according to the invention a segmented baffle 10 is provided, which is formed substantially flat and extremely lightweight. If several of these segments 11 'integrated in a baffle 10 by the various segments 11' are coupled together, the entire size of the baffle 10 can be exploited for sound radiation, without further sound sources in the listening room 31 are necessary. The optimization of the various segments 11 'on certain frequency ranges can be brought about by the fact that the respective segments 11' have surface and depth extents coordinated with the corresponding transmission frequencies. By juxtaposing a plurality of baffles 10 are reacted to the respective conditions in the listening room 31 very flexible. In addition, the playback room facing the listening room 30 of these baffles 10 can be used for example by appropriate imprints as an advertising medium.
Figure imgaf001
EP99114407A 1998-09-04 1999-07-22 Acoustic panel Expired - Lifetime EP0984659B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19840375A DE19840375C2 (en) 1998-09-04 1998-09-04 baffle
DE19840375 1998-09-04

Publications (3)

Publication Number Publication Date
EP0984659A2 EP0984659A2 (en) 2000-03-08
EP0984659A3 true EP0984659A3 (en) 2006-09-06
EP0984659B1 EP0984659B1 (en) 2008-02-27

Family

ID=7879823

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99114407A Expired - Lifetime EP0984659B1 (en) 1998-09-04 1999-07-22 Acoustic panel

Country Status (3)

Country Link
US (1) US6170603B1 (en)
EP (1) EP0984659B1 (en)
DE (2) DE19840375C2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19821855A1 (en) 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Flat panel loudspeaker
DE19821862A1 (en) * 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Flat panel loudspeaker
DE19825866A1 (en) 1998-06-10 1999-12-16 Nokia Deutschland Gmbh Record speakers
DE19843079A1 (en) 1998-09-19 2000-03-23 Nokia Deutschland Gmbh Multi-resonance plate
DE10001410C2 (en) * 2000-01-14 2001-12-06 Harman Audio Electronic Sys Flat speaker arrangement
US20050175209A1 (en) * 2004-02-09 2005-08-11 Madison Fielding, Inc. Integrated Speaker Device
EP2023654A1 (en) * 2007-07-23 2009-02-11 Knauf AMF GmbH & Co. KG Flat panel loudspeakers
GB2451259B (en) * 2007-07-25 2011-07-20 Gp Acoustics Loudspeaker
US7856115B2 (en) * 2007-11-30 2010-12-21 Clair Brothers Audio Systems Inc. Optimized moving-coil loudspeaker
DE102008011302A1 (en) * 2008-02-27 2009-09-10 Siemens Aktiengesellschaft Panel loudspeaker
US10440477B2 (en) 2016-01-22 2019-10-08 Glauk S.R.L. Method and apparatus for playing audio by means of planar accoustic transducers
US10580396B1 (en) 2017-04-07 2020-03-03 The United States Of America As Represented By The Secretary Of The Navy Acoustically stiff wall
DE102021124624A1 (en) * 2021-09-23 2023-03-23 LiMES - Immersive Solutions GmbH baffle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0847673B1 (en) * 1995-09-02 1999-03-10 New Transducers Limited Portable compact-disc player incorporating panel-form loudspeakers
EP0847670B1 (en) * 1995-09-02 1999-03-10 New Transducers Limited Display screens incorporating loudspeakers
WO1999060444A1 (en) * 1998-05-15 1999-11-25 Harman Audio Electronic Systems Gmbh Projection screen
WO1999060818A1 (en) * 1998-05-15 1999-11-25 Harman Audio Electronic Systems Gmbh Panel loudspeaker

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696885A (en) * 1971-08-19 1972-10-10 Electronic Res Ass Decorative loudspeakers
US4778027A (en) * 1987-04-30 1988-10-18 Taylor Mildred E Rhythmizer
US4928312A (en) * 1988-10-17 1990-05-22 Amel Hill Acoustic transducer
EP0729628A4 (en) * 1993-11-18 1999-06-16 Sound Advance Syst Inc Improved planar diaphragm loudspeaker
CA2139151A1 (en) * 1994-01-14 1995-07-15 Amin M. Hanafy Two-dimensional acoustic array and method for the manufacture thereof
DE69519105T2 (en) 1994-02-26 2001-04-05 Sony Corp Plate charger for a plate changing system
JP3618406B2 (en) * 1994-06-24 2005-02-09 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 Ultrasonic diagnostic transducer array capable of height focusing.
DE4426696C1 (en) * 1994-07-18 1996-01-04 Thorsten Dipl Ing Schippritt Electroacoustic transducer for receiving and reproducing stereophonic signals
DE19757097B4 (en) 1997-12-20 2004-04-15 Harman Audio Electronic Systems Gmbh Sound reproduction device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0847673B1 (en) * 1995-09-02 1999-03-10 New Transducers Limited Portable compact-disc player incorporating panel-form loudspeakers
EP0847670B1 (en) * 1995-09-02 1999-03-10 New Transducers Limited Display screens incorporating loudspeakers
WO1999060444A1 (en) * 1998-05-15 1999-11-25 Harman Audio Electronic Systems Gmbh Projection screen
WO1999060818A1 (en) * 1998-05-15 1999-11-25 Harman Audio Electronic Systems Gmbh Panel loudspeaker

Also Published As

Publication number Publication date
DE19840375C2 (en) 2003-08-28
EP0984659A2 (en) 2000-03-08
EP0984659B1 (en) 2008-02-27
US6170603B1 (en) 2001-01-09
DE19840375A1 (en) 2000-03-09
DE59914664D1 (en) 2008-04-10

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