Abstract:
A sound masking system according to the invention is disclosed in which one or more sound masking loudspeaker assemblies are coupled to one or more electronic sound masking signal generators. The loudspeaker assemblies in the system of the invention have a low directivity index and preferably emit an acoustic sound masking signal that has a sound masking spectrum specifically designed to provide superior sound masking in an open plan office. Each of the plurality of loudspeaker assemblies is oriented to provide the acoustic sound masking signal in a direct path into the predetermined area in which masking sound is needed. In addition, a loudspeaker assembly is configured as a bolt and slip-nut threading system for ease of installation. The exterior surface of the loud speaker "bolt" and the interior surface of the locking nut contain axially oriented, reciprocal regions with and without threads. In operation, the regions of the nut without threads are oriented to correspond to the regions of the bolt with threads. The nut is then slid along the bolt until the desired placement position is reached and locked in place with a half turn of the nut or less. An interference pin may also be used to provide positive locking of the nut at any position.
Abstract:
Die vorliegende Erfindung betrifft ein Lautsprecher-System mit mehreren Schallwandlern (2), die in oder hinter Schalldurchgangsöffnungen (3) in einer Trägerplatte befestigt sind. Das LautsprecherSystem zeichnet sich dadurch aus, dass die Trägerplatte als Wandplatte (1) für Innenräume oder Außenfassaden von Gebäuden ausgebildet ist und die Schallwandler (2) in die Trägerplatte integriert sind. Mit dem vorliegenden Lautsprecher-System bzw. der vorliegenden Lautsprecher-Wandplatte lässt sich eine optimale Beschallung eines Raumes ohne ästhetisch störende Lautsprecherboxen realisieren.
Abstract:
The invention relates to an electro-acoustic device that is mounted in commercially available ceiling, partition or face panels such as mineral fiber, plaster-carton, multi-laminated wood panels, etc. and that converts them into flat and invisible high fidelity sound radiators due to its particular property of being equalizable for each type of panel when it is manufactured and mounted.
Abstract:
An in-wall speaker mounting apparatus (10) adapted to attach to adjacent studs (12, 14) in a wall (16) is provided. Such stud attachment permits the weight of the apparatus as well as any speakers attached to the apparatus to be supported by the studs and not the wall in which the apparatus is mounted. The apparatus comprises a backwall (18) and four upstanding sidewalls (20, 22, 24, 26). At least one sidewall or the backwall is provided with an access hole (30) which serves as an entry point for speaker wire or the like. At least one, and preferably two opposing sidewalls are provided with a pair of apertures (28) each having a fixture assembly (34) mounted thereto. The fixture assembly comprises a spacer mount (48) having a flanged portion (56) flush with the exterior portion of the sidewall and an exteriorly threaded region (54) extending into the apparatus. A flanged hex nut (58) is threaded onto the threaded region of the spacer mount with the flanged portion of the hex nut flush with the interior portion of the sidewall. As the hex nut is threaded onto the spacer mount, the two flanged portions are drawn securely against the sidewall. A spacer (36) having a bore therethrough is then inserted through the hole in the hex nut and threaded through a bore in the spacer mount. The spacer is of sufficient length to contact the nearest adjacent stud when extended and is adjusted to such a point when installing the apparatus. A fixture (40) is then inserted into the hole in the spacer and secured to the contacted stud.
Abstract:
A combination panel-form loudspeaker/light comprising a panel (12) having a front face (14) and rear face (16), a vibration exciter (18, 20) mounted to the member to excite bending-wave vibration in the member, and a light emitter (22) mounted at or adjacent to the panel and arranged to illuminate an area adjacent to the panel.
Abstract:
Acoustical housing (2010, 3010) for supporting and enhancing the performance of speakers (110, 214, 2044, 3090, 4090). A preferred apparatus includes a support well (2012, 2012') that is fabricated from acoustically absorptive material and is adapted to be mounted between wall or ceiling studs (2056, 2058, 3056, 3058, 4056, 4058). A cover (2030, 4030) or a portion of wall board (2052, 2054) may be installed to completely enclose the support well (2012, 2012') within the wall to define a cavity (2060, 3070, 4070) into which a portion of a speaker body (2046) may extend. The speaker or speakers (110, 214, 2044, 3090, 4090) are affixed to the cover (2030, 4030) or wallboard (2052, 2054) in a conventional manner such that the speaker body (2046) extends into the cavity (2060, 3070, 4070) and the sound emitting surface of the speaker (110, 214, 2044, 3090, 4090) is exposed. Methods for installing the acoustical housings (2010, 3010) into existing wall or ceiling structures without compromising the acoustical and structural integrities of such structures are also disclosed.
Abstract:
A ceiling tile (36) for a suspended ceiling and incorporating a loudspeaker (81) characterised in that the tile is in the form of a distributed mode acoustic radiator (2), and by a transducer (9) mounted wholly and exclusively on the radiator to vibrate the radiator to cause it to resonate.
Abstract:
In a loudspeaker (1) according to the present invention, a functional, modified or separate plane-like part or other component of a product meant for sound reproduction, i.e., a diaphragm (3) of the body structure (2) of said loudspeaker vibrates mechanically at the frequency of the reproduced sound, controlled by a voice coil (5) of a driver (4). Depending on the elasticity characteristics of the diaphragm, sufficient amplitude of movement for sound reproduction is achieved by means of a stiff, thin diaphragm (3) that vibrates in the same phase as the voice coil. The sound beam of the loudspeaker is wide and it is a point-like source of sound. The depth of the loudspeaker casing is small and it takes up little space, so it can be built as a part of another product or structure, such as a door, shelf, wall, cabinet or other piece of furniture, and it can be sold as an integrated part therein. The loudspeaker also provides immense freedom to architects and other designers of furniture, structures and spaces, as it can be covered, painted or hidden from view.