WO1999062294A1 - Haut-parleur en forme de panneau - Google Patents
Haut-parleur en forme de panneau Download PDFInfo
- Publication number
- WO1999062294A1 WO1999062294A1 PCT/GB1999/001406 GB9901406W WO9962294A1 WO 1999062294 A1 WO1999062294 A1 WO 1999062294A1 GB 9901406 W GB9901406 W GB 9901406W WO 9962294 A1 WO9962294 A1 WO 9962294A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- panel
- loudspeaker
- boundary
- angle
- resonant
- Prior art date
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
- H04R27/00—Public address systems
-
- 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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for loudspeakers
Definitions
- the invention relates to panel-form loudspeakers, and more particularly, but not exclusively, to resonant panel- form loudspeakers, e.g. of the kind described in our International application WO 97/09842. BACKGROUND ART
- loudspeakers are placed in a room coplanar or near coplanar to major adjacent walls or boundaries, and at a range of distances from that boundary. This range extends from close proximity to the boundary to an approximation of free space a metre or more from the boundary.
- loudspeakers When several loudspeakers are used in association, they are often placed such that the listener or audience to be served is on or near the geometric, median and/or designed radiating axes of the loudspeakers.
- a distributed mode resonant panel-form loudspeaker has a largely bi-polar and naturally diffuse radiation. Interference problems can exist when such a panel-form loudspeaker is placed close to and co-planar with a boundary, leading to cancellation of the radiation from the panel surface facing the boundary.
- the present invention is a method of operating a resonant panel-form loudspeaker, comprising arranging the loudspeaker panel near to a boundary so as to be acoustically linked to the boundary and with the plane of the loudspeaker panel at an angle to the boundary.
- the angle may be greater than about 10° to the boundary.
- the angle may be substantially normal to the boundary.
- the panel may be stored in a rest position parallel to and adjacent the boundary and moved to a use position at an angle thereto.
- the invention is a resonant panel- form loudspeaker support comprising means engaging and retaining the loudspeaker panel to be supported, means adapted for engagement with, and securing to, a boundary e.g. a room wall or ceiling, and means connecting the respective loudspeaker and boundary engagement means, the connecting means being arranged for disposition adjacent to a side edge of the loudspeaker panel and adjacent to the boundary.
- the connecting means is such that the loudspeaker panel can be moved from a storage position in which the loudspeaker panel is substantially flush with the boundary to a working position in which the loudspeaker panel extends at an angle to the boundary.
- the connecting means may be a hinge with a substantially vertical pivot axis.
- Means may be provided damping hinging movement to restrain unintended relative movement whereby the loudspeaker panel remains in a position in which it has been positioned.
- the respective engagement means may be such as enable fasteners, e.g. screws, to fix the engagement means to the panel and to the wall or the like.
- the invention is a combination of a resonant panel-form loudspeaker and a boundary support adapted to fix the panel to the boundary such that a panel edge is adjacent to the boundary and such that the panel can be moved between a working position in which the panel is disposed at an angle to the boundary and as storage position in which the panel is flush with the boundary.
- the panel-form loudspeaker may be of the resonant distributed mode radiator kind as described in our co- pending International application WO 97/09842.
- Figure 1 is a plan view of a domestic room in which audio visual apparatus is installed
- Figure 2 is a perspective view of part of the room of Figure 1 and showing a wall-mounted panel-form loudspeaker;
- Figure 2a is a perspective view, to an enlarged scale, of the loudspeaker shown in Figure 2;
- Figure 3 is a perspective view of part of a room having a ceiling mounted panel-form loudspeaker
- Figure 4 is a perspective view of a support by which a panel-form loudspeaker can be fixed to a wall or ceiling.
- BEST MODES FOR CARRYING OUT THE INVENTION In the drawings, and referring more particularly to Figures 1 and 2, a rectangular domestic room is bounded by a front wall 2, a rear wall 3 and an opposed pair of side walls 4,5 respectively.
- a listening/viewing position 6 is diagrammatically shown at the centre of the room.
- a visual display screen 7 is positioned centrally on the front wall 2 and may be in the form of a combined projection screen and resonant panel-form loudspeaker of the general kind described in WO97/09842, and known as a distributed mode loudspeaker.
- Respective front and rear pairs 8,9 and 10,11 of substantially rectangular resonant panel-form loudspeakers are mounted on the respective side walls 4,5 by supports 22 (see Figure 4) at positions which are respectively in front of and behind the listening position 6.
- loudspeakers may be distributed mode loudspeakers as described in WO97/09842.
- Each of the loudspeakers 8,9,10,11 is arranged to be mounted on the wall such that one vertical edge of the panel is adjacent to the wall and such that the panel can be pivoted from a storage position 12, in which the panel is flush with the wall to a position of use 13, in which the panel is disposed at an angle to the wall.
- Alternative positions of use of the loudspeaker panels 8,9,10,11 are shown in dotted lines at reference 14.
- the arrangement is such that the respective loudspeaker panels are sufficiently close to the wall as to be acoustically linked to the wall so that, in use, the apparent size of each loudspeaker is effectively doubled by an acoustic mirror image reflection 15, see Figure 2.
- Figure 3 shows a generally rectangular room having adjacent walls 2,4 and a ceiling 16 on which is mounted a generally rectangular resonant panel-form loudspeaker 17, e.g. a distributed mode loudspeaker of the general kind described in WO97/09842.
- a generally rectangular resonant panel-form loudspeaker 17 e.g. a distributed mode loudspeaker of the general kind described in WO97/09842.
- the loudspeaker 17 is hingedly mounted on the ceiling 16 by one edge such that the edge is adjacent to the ceiling and such that the loudspeaker can be pivoted from a use position 18, in which the panel extends generally normal to the ceiling to a storage position 19 in which the loudspeaker is flush with the ceiling.
- Alternative positions of use, intermediate positions 18 and 19 are shown in dotted lines at reference 20.
- the close mounting of the resonant panel-form loudspeaker on the ceiling means the loudspeaker is acoustically linked to the boundary represented by the ceiling so that, in use, the apparent size of the loudspeaker is effectively doubled by an acoustic mirror image reflection 21.
- FIG 4 there is shown a loudspeaker support 22 by which a resonant panel-form loudspeaker of the kind shown in Figures 1 to 3 can be fixed to a boundary, e.g. a wall or ceiling of a room.
- the support comprises means 23 for fixing to a wall, ceiling or other boundary in the form of a plate-like wall bracket which may be secured in place by means of fasteners (not shown) such as screws or the like in conventional fashion.
- the wall bracket 22 carries a spaced pair of lugs 24 which carry a hinge pin 25 to which is fixed one edge of a resonant panel-form loudspeaker, e.g. that shown at 8,9,10 and 11 in Figures 1 to 3, in any convenient manner, e.g.
- the loudspeaker panel may be pivoted between the position shown in full lines and the rest or storage position 12 flush against the boundary surface, as well as various positions in between, also shown in dotted lines.
- a thumb screw 26 at one end of the hinge pin 25 applies friction to the hinge so that the loudspeaker panel remains in whatever position is selected by the user.
- a distributed mode loudspeaker is placed at or close to an appropriate boundary, in close contact via an edge at right angles or at a range or angles greater than about 10° to the boundary, the angle being set conveniently by the user, for example, enabled by a friction stabilised hinge, or other means of adjusting the azimuth angle, connecting a wall bracket and the panel speaker.
- Panel may be orientated to adjust tonal balance and directivity for optimum quality at the listening position.
- Panel may be orientated to provide a moderate power null directed at the user/listener for beneficially reduced localisation and also improved diffuse sound field generation. This is important in Home Theatre applications .
- Panel may be folded away for improved tidiness and room appearance when not in use.
- the invention thus provides a simple means of enhancing the effectiveness of a panel-form loudspeaker, particularly a distributed mode radiator, while facilitating its use and storage, e.g. in a domestic situation.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9910666-3A BR9910666A (pt) | 1998-05-23 | 1999-05-20 | Alto-falante na forma de painel |
JP2000551575A JP2002517149A (ja) | 1998-05-23 | 1999-05-20 | パネル形状ラウドスピーカ |
MXPA00011483A MXPA00011483A (es) | 1998-05-23 | 1999-05-20 | Altavoz en forma de panel. |
KR1020007012542A KR20010043478A (ko) | 1998-05-23 | 1999-05-20 | 패널형 확성기 |
EP99922269A EP1080605A1 (fr) | 1998-05-23 | 1999-05-20 | Haut-parleur en forme de panneau |
IL13966999A IL139669A0 (en) | 1998-05-23 | 1999-05-20 | Panel-form loudspeaker |
AU39381/99A AU3938199A (en) | 1998-05-23 | 1999-05-20 | Panel-form loudspeaker |
CA002332824A CA2332824A1 (fr) | 1998-05-23 | 1999-05-20 | Haut-parleur en forme de panneau |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9811098.4 | 1998-05-23 | ||
GBGB9811098.4A GB9811098D0 (en) | 1998-05-23 | 1998-05-23 | Panel-form loudspeaker |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999062294A1 true WO1999062294A1 (fr) | 1999-12-02 |
Family
ID=10832583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1999/001406 WO1999062294A1 (fr) | 1998-05-23 | 1999-05-20 | Haut-parleur en forme de panneau |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP1080605A1 (fr) |
JP (1) | JP2002517149A (fr) |
KR (1) | KR20010043478A (fr) |
CN (1) | CN1299576A (fr) |
AU (1) | AU3938199A (fr) |
BR (1) | BR9910666A (fr) |
CA (1) | CA2332824A1 (fr) |
GB (1) | GB9811098D0 (fr) |
IL (1) | IL139669A0 (fr) |
MX (1) | MXPA00011483A (fr) |
WO (1) | WO1999062294A1 (fr) |
ZA (1) | ZA200005771B (fr) |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1122974A1 (fr) * | 2000-02-02 | 2001-08-08 | Siemens Aktiengesellschaft | Dispositif d'éclairage avec haut -parleur plat integré |
EP1392080A2 (fr) * | 2002-08-17 | 2004-02-25 | KH Technology Corporation | Unité et ensemble de haut-parleur |
US9564146B2 (en) | 2014-08-01 | 2017-02-07 | Bongiovi Acoustics Llc | System and method for digital signal processing in deep diving environment |
US9615189B2 (en) | 2014-08-08 | 2017-04-04 | Bongiovi Acoustics Llc | Artificial ear apparatus and associated methods for generating a head related audio transfer function |
US9621994B1 (en) | 2015-11-16 | 2017-04-11 | Bongiovi Acoustics Llc | Surface acoustic transducer |
US9615813B2 (en) | 2014-04-16 | 2017-04-11 | Bongiovi Acoustics Llc. | Device for wide-band auscultation |
US9638672B2 (en) | 2015-03-06 | 2017-05-02 | Bongiovi Acoustics Llc | System and method for acquiring acoustic information from a resonating body |
US9741355B2 (en) | 2013-06-12 | 2017-08-22 | Bongiovi Acoustics Llc | System and method for narrow bandwidth digital signal processing |
US9793872B2 (en) | 2006-02-07 | 2017-10-17 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US9883318B2 (en) | 2013-06-12 | 2018-01-30 | Bongiovi Acoustics Llc | System and method for stereo field enhancement in two-channel audio systems |
US9906858B2 (en) | 2013-10-22 | 2018-02-27 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US9906867B2 (en) | 2015-11-16 | 2018-02-27 | Bongiovi Acoustics Llc | Surface acoustic transducer |
US10069471B2 (en) | 2006-02-07 | 2018-09-04 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10158337B2 (en) | 2004-08-10 | 2018-12-18 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10639000B2 (en) | 2014-04-16 | 2020-05-05 | Bongiovi Acoustics Llc | Device for wide-band auscultation |
US10701505B2 (en) | 2006-02-07 | 2020-06-30 | Bongiovi Acoustics Llc. | System, method, and apparatus for generating and digitally processing a head related audio transfer function |
US10820883B2 (en) | 2014-04-16 | 2020-11-03 | Bongiovi Acoustics Llc | Noise reduction assembly for auscultation of a body |
US10848867B2 (en) | 2006-02-07 | 2020-11-24 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10848118B2 (en) | 2004-08-10 | 2020-11-24 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10959035B2 (en) | 2018-08-02 | 2021-03-23 | Bongiovi Acoustics Llc | System, method, and apparatus for generating and digitally processing a head related audio transfer function |
US11202161B2 (en) | 2006-02-07 | 2021-12-14 | Bongiovi Acoustics Llc | System, method, and apparatus for generating and digitally processing a head related audio transfer function |
US11211043B2 (en) | 2018-04-11 | 2021-12-28 | Bongiovi Acoustics Llc | Audio enhanced hearing protection system |
US11431312B2 (en) | 2004-08-10 | 2022-08-30 | Bongiovi Acoustics Llc | System and method for digital signal processing |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4747739B2 (ja) * | 2005-08-29 | 2011-08-17 | ソニー株式会社 | 音声出力装置および部屋 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3347335A (en) * | 1965-04-05 | 1967-10-17 | Bolt Beranek & Newman | Acoustic-wave apparatus |
US4566557A (en) * | 1983-03-09 | 1986-01-28 | Guy Lemaitre | Flat acoustic diffuser |
WO1997009842A2 (fr) * | 1995-09-02 | 1997-03-13 | New Transducers Limited | Dispositif acoustique |
-
1998
- 1998-05-23 GB GBGB9811098.4A patent/GB9811098D0/en not_active Ceased
-
1999
- 1999-05-20 EP EP99922269A patent/EP1080605A1/fr not_active Withdrawn
- 1999-05-20 WO PCT/GB1999/001406 patent/WO1999062294A1/fr not_active Application Discontinuation
- 1999-05-20 MX MXPA00011483A patent/MXPA00011483A/es unknown
- 1999-05-20 IL IL13966999A patent/IL139669A0/xx unknown
- 1999-05-20 JP JP2000551575A patent/JP2002517149A/ja active Pending
- 1999-05-20 CN CN99805906A patent/CN1299576A/zh active Pending
- 1999-05-20 BR BR9910666-3A patent/BR9910666A/pt not_active Application Discontinuation
- 1999-05-20 CA CA002332824A patent/CA2332824A1/fr not_active Abandoned
- 1999-05-20 KR KR1020007012542A patent/KR20010043478A/ko not_active Application Discontinuation
- 1999-05-20 AU AU39381/99A patent/AU3938199A/en not_active Abandoned
-
2000
- 2000-10-18 ZA ZA200005771A patent/ZA200005771B/xx unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3347335A (en) * | 1965-04-05 | 1967-10-17 | Bolt Beranek & Newman | Acoustic-wave apparatus |
US4566557A (en) * | 1983-03-09 | 1986-01-28 | Guy Lemaitre | Flat acoustic diffuser |
WO1997009842A2 (fr) * | 1995-09-02 | 1997-03-13 | New Transducers Limited | Dispositif acoustique |
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1122974A1 (fr) * | 2000-02-02 | 2001-08-08 | Siemens Aktiengesellschaft | Dispositif d'éclairage avec haut -parleur plat integré |
EP1392080A2 (fr) * | 2002-08-17 | 2004-02-25 | KH Technology Corporation | Unité et ensemble de haut-parleur |
EP1392080A3 (fr) * | 2002-08-17 | 2004-12-22 | KH Technology Corporation | Unité et ensemble de haut-parleur |
US10848118B2 (en) | 2004-08-10 | 2020-11-24 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US11431312B2 (en) | 2004-08-10 | 2022-08-30 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10158337B2 (en) | 2004-08-10 | 2018-12-18 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10666216B2 (en) | 2004-08-10 | 2020-05-26 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10701505B2 (en) | 2006-02-07 | 2020-06-30 | Bongiovi Acoustics Llc. | System, method, and apparatus for generating and digitally processing a head related audio transfer function |
US9793872B2 (en) | 2006-02-07 | 2017-10-17 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10848867B2 (en) | 2006-02-07 | 2020-11-24 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10069471B2 (en) | 2006-02-07 | 2018-09-04 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US11202161B2 (en) | 2006-02-07 | 2021-12-14 | Bongiovi Acoustics Llc | System, method, and apparatus for generating and digitally processing a head related audio transfer function |
US11425499B2 (en) | 2006-02-07 | 2022-08-23 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US9741355B2 (en) | 2013-06-12 | 2017-08-22 | Bongiovi Acoustics Llc | System and method for narrow bandwidth digital signal processing |
US9883318B2 (en) | 2013-06-12 | 2018-01-30 | Bongiovi Acoustics Llc | System and method for stereo field enhancement in two-channel audio systems |
US10412533B2 (en) | 2013-06-12 | 2019-09-10 | Bongiovi Acoustics Llc | System and method for stereo field enhancement in two-channel audio systems |
US10999695B2 (en) | 2013-06-12 | 2021-05-04 | Bongiovi Acoustics Llc | System and method for stereo field enhancement in two channel audio systems |
US10313791B2 (en) | 2013-10-22 | 2019-06-04 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US9906858B2 (en) | 2013-10-22 | 2018-02-27 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US11418881B2 (en) | 2013-10-22 | 2022-08-16 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10917722B2 (en) | 2013-10-22 | 2021-02-09 | Bongiovi Acoustics, Llc | System and method for digital signal processing |
US10820883B2 (en) | 2014-04-16 | 2020-11-03 | Bongiovi Acoustics Llc | Noise reduction assembly for auscultation of a body |
US10639000B2 (en) | 2014-04-16 | 2020-05-05 | Bongiovi Acoustics Llc | Device for wide-band auscultation |
US9615813B2 (en) | 2014-04-16 | 2017-04-11 | Bongiovi Acoustics Llc. | Device for wide-band auscultation |
US11284854B2 (en) | 2014-04-16 | 2022-03-29 | Bongiovi Acoustics Llc | Noise reduction assembly for auscultation of a body |
US9564146B2 (en) | 2014-08-01 | 2017-02-07 | Bongiovi Acoustics Llc | System and method for digital signal processing in deep diving environment |
US9615189B2 (en) | 2014-08-08 | 2017-04-04 | Bongiovi Acoustics Llc | Artificial ear apparatus and associated methods for generating a head related audio transfer function |
US9638672B2 (en) | 2015-03-06 | 2017-05-02 | Bongiovi Acoustics Llc | System and method for acquiring acoustic information from a resonating body |
US9906867B2 (en) | 2015-11-16 | 2018-02-27 | Bongiovi Acoustics Llc | Surface acoustic transducer |
US9621994B1 (en) | 2015-11-16 | 2017-04-11 | Bongiovi Acoustics Llc | Surface acoustic transducer |
US9998832B2 (en) | 2015-11-16 | 2018-06-12 | Bongiovi Acoustics Llc | Surface acoustic transducer |
US11211043B2 (en) | 2018-04-11 | 2021-12-28 | Bongiovi Acoustics Llc | Audio enhanced hearing protection system |
US10959035B2 (en) | 2018-08-02 | 2021-03-23 | Bongiovi Acoustics Llc | System, method, and apparatus for generating and digitally processing a head related audio transfer function |
Also Published As
Publication number | Publication date |
---|---|
BR9910666A (pt) | 2001-01-30 |
MXPA00011483A (es) | 2002-06-04 |
ZA200005771B (en) | 2001-07-13 |
CN1299576A (zh) | 2001-06-13 |
IL139669A0 (en) | 2002-02-10 |
JP2002517149A (ja) | 2002-06-11 |
CA2332824A1 (fr) | 1999-12-02 |
AU3938199A (en) | 1999-12-13 |
GB9811098D0 (en) | 1998-07-22 |
KR20010043478A (ko) | 2001-05-25 |
EP1080605A1 (fr) | 2001-03-07 |
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