Results 261 to 270 of about 14,802 (299)
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Loudspeaker enclosure with isolation of loudspeaker vibration
The Journal of the Acoustical Society of America, 1987A multi-chamber loudspeaker enclosure comprises a primary chamber having a principle interior volume and a secondary chamber having a minor interior volume substantially smaller than the principal interior volume. The secondary chamber comprises an elongated housing mounted to a front wall of the primary chamber.
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The Journal of the Acoustical Society of America, 1985
A speaker diaphragm comprises a composite film prepared by combining a reinforcing material such as a mica, a needle or fiber filler, or talc, with a polybisphenol phthalate resin consisting of an aromatic dicarboxylic acid and a dihydric phenol.
Takashi Takeda +3 more
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A speaker diaphragm comprises a composite film prepared by combining a reinforcing material such as a mica, a needle or fiber filler, or talc, with a polybisphenol phthalate resin consisting of an aromatic dicarboxylic acid and a dihydric phenol.
Takashi Takeda +3 more
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Loudspeaker enclosure for a vibrating diaphragm loudspeaker
The Journal of the Acoustical Society of America, 1989A loudspeaker system employing a diaphragm type loudspeaker mounted in an opening in one of a plurality of walls of a hollow enclosure, the walls of the enclosure consisting of a plurality of layers disposed between surfaces thereof, the layers comprising a plurality of elongated strands of wood in a mass of solid resin, the axes of elongation of the ...
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The Journal of the Acoustical Society of America, 2010
In a process for producing a loudspeaker diaphragm, pulp is deposited on a paper-making mold in the presence of vortex stream of water having pulp dispersed therein in a paper-making bath. Pulp is deposited on the paper-making mold while at least the water having pulp dispersed therein is rotated by the vortex stream in the paper-making bath ...
Shinya Mizone, Suzuki Takashi
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In a process for producing a loudspeaker diaphragm, pulp is deposited on a paper-making mold in the presence of vortex stream of water having pulp dispersed therein in a paper-making bath. Pulp is deposited on the paper-making mold while at least the water having pulp dispersed therein is rotated by the vortex stream in the paper-making bath ...
Shinya Mizone, Suzuki Takashi
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The Journal of the Acoustical Society of America, 1987
The present invention is directed to a diaphragm for loudspeakers which is integrally constructed through the combination of a core material being formed as a disc-shaped solid construction through the independent or series of combination of a plurality of flat-plate pieces and disc-shaped skin materials each being approximately equal in diameter on ...
Maruno Yoshiaki, Hiroshi Takeuchi
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The present invention is directed to a diaphragm for loudspeakers which is integrally constructed through the combination of a core material being formed as a disc-shaped solid construction through the independent or series of combination of a plurality of flat-plate pieces and disc-shaped skin materials each being approximately equal in diameter on ...
Maruno Yoshiaki, Hiroshi Takeuchi
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Transactions of the IRE Professional Group on Audio, 1954
This paper covers the development of loudspeakers and microphones and gives many illustrations of commercially available units dating from 1915 to the present time.
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This paper covers the development of loudspeakers and microphones and gives many illustrations of commercially available units dating from 1915 to the present time.
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The Journal of the Acoustical Society of America, 1985
A diaphragm for a loudspeaker is described, which essentially consists of a polyolefin resin such as propylene homopolymer or copolymer with an ethylenically unsaturated copolymerizable monomer or a 4-methylheptene-1 resin and short fibers of potassium titanate.
Nobuo Fuke +3 more
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A diaphragm for a loudspeaker is described, which essentially consists of a polyolefin resin such as propylene homopolymer or copolymer with an ethylenically unsaturated copolymerizable monomer or a 4-methylheptene-1 resin and short fibers of potassium titanate.
Nobuo Fuke +3 more
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Loudspeaker enclosure with acoustically coupled loudspeaker damper
The Journal of the Acoustical Society of America, 1979A loudspeaker system is described in which a driven speaker is acoustically coupled in the speaker enclosure with a variable acoustical damper, the damper having an acoustical cone, the movement of which is dampened by an induction coil connected across variable resistance means.
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Magnetostrictive microelectromechanical loudspeaker
The Journal of the Acoustical Society of America, 2013A microelectromechnical-loudspeaker based on the magnetostrictive effect is presented. The membrane consists of a comb structure of monomorph bending cantilevers with an area of about 16 mm2. Prototypes generate a sound pressure level (SPL) of up to 102 dB at 450 Hz with a total harmonic distortion of 2% inside a 2 cm3 measurement volume.
Reinhard Lerch, Thorsten Albach
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The Journal of the Acoustical Society of America, 1979
A loudspeaker system for vehicles wherein a monolithic, elongated element including end portions thereof constituting loudspeaker cabinets. The elongated element is preferably designed in such a way that it has a close fit against the ceiling of the vehicle in which the loudspeaker system is to be mounted, whereby the elongated element can have an open
Koppelomaki Leo, Persson Per
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A loudspeaker system for vehicles wherein a monolithic, elongated element including end portions thereof constituting loudspeaker cabinets. The elongated element is preferably designed in such a way that it has a close fit against the ceiling of the vehicle in which the loudspeaker system is to be mounted, whereby the elongated element can have an open
Koppelomaki Leo, Persson Per
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