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Statements

Subject Item
dbr:Parabolic_loudspeaker
rdf:type
dbo:Company
rdfs:label
Parabolic loudspeaker
rdfs:comment
A parabolic loudspeaker is a loudspeaker which seeks to focus its sound in coherent plane waves either by reflecting sound output from a speaker driver to a parabolic reflector aimed at the target audience, or by arraying drivers on a parabolic surface. The resulting beam of sound travels farther, with less dissipation in air, than horn loudspeakers, and can be more focused than line array loudspeakers allowing sound to be sent to isolated audience targets. The parabolic loudspeaker has been used for such diverse purposes as directing sound at faraway targets in performing arts centers and stadia, for industrial testing, for intimate listening at museum exhibits, and as a sonic weapon.
foaf:depiction
n10:Olofoni3.jpg
dcterms:subject
dbc:Loudspeaker_technology
dbo:wikiPageID
23982693
dbo:wikiPageRevisionID
1049378260
dbo:wikiPageWikiLink
dbr:Sound_power dbr:Voice_coil dbr:Bi-amping dbr:Damping_ratio dbr:Parabola dbr:Audio_signal_processing dbr:Sound_reinforcement_system dbr:Airport dbr:Rome dbr:Horn_(acoustic) dbr:Performing_arts_center dbr:Loudspeaker_enclosure dbr:Shock_wave dbr:Meyer_Sound_Laboratories dbr:Spatial_music dbr:John_Meyer_(audio_engineer) dbr:Methane dbr:Beam_steering dbr:Stadium dbr:Loudspeaker dbr:Trade_fair dbr:Sphere dbr:Oxygen dbr:Speaker_driver dbr:Long_Range_Acoustic_Device dbr:World_War_II dbr:Parabolic_microphone dbr:Decibel dbr:Parabolic_reflector dbr:Horn_loudspeaker dbr:Soundproofing dbr:Exhibition_center dbr:Public_address dbr:Directional_sound dbr:Plane_wave n18:Olofoni3.jpg dbc:Loudspeaker_technology dbr:Hertz dbr:Line_array dbr:Video_arcade dbr:Stereophonic_sound dbr:Sonic_weapon
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dbo:thumbnail
n10:Olofoni3.jpg?width=300
dbp:d
14
dbp:date
September 2021
dbp:m
12
dbp:number
5821470 3997023
dbp:reason
54.0
dbp:title
Loudspeaker with improved surround
dbp:y
1976
dbo:abstract
A parabolic loudspeaker is a loudspeaker which seeks to focus its sound in coherent plane waves either by reflecting sound output from a speaker driver to a parabolic reflector aimed at the target audience, or by arraying drivers on a parabolic surface. The resulting beam of sound travels farther, with less dissipation in air, than horn loudspeakers, and can be more focused than line array loudspeakers allowing sound to be sent to isolated audience targets. The parabolic loudspeaker has been used for such diverse purposes as directing sound at faraway targets in performing arts centers and stadia, for industrial testing, for intimate listening at museum exhibits, and as a sonic weapon.
dbp:inventor
Stanley F. White
gold:hypernym
dbr:Loudspeaker
prov:wasDerivedFrom
wikipedia-en:Parabolic_loudspeaker?oldid=1049378260&ns=0
dbo:wikiPageLength
12277
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wikipedia-en:Parabolic_loudspeaker