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.[1] 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.
^Borgerson, Bruce. "Technology Showcase: Focused Loudspeaker Systems." AVInstall, November 1, 2005. Retrieved on August 25, 2009.
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A parabolicloudspeaker is a loudspeaker which seeks to focus its sound in coherent plane waves either by reflecting sound output from a speaker driver...
Isobaric loudspeaker List of loudspeaker manufacturers Loudspeaker acoustics Long Range Acoustic Device (LRAD) Music center Parabolicloudspeaker Phase plug...
whispering-gallery waves such as light or matter waves. Acoustic mirror Parabolicloudspeaker Room acoustics Lord Rayleigh, The problem of the whispering gallery...
size and shape, not of the specific type of transducer used. LoudspeakerParabolicloudspeaker Sonic weaponry Sound from ultrasound Steinberg, Principles...
antennas may use a single transducer focused into a parabolic reflector to form a parabolicloudspeaker, or an array of speaker drivers and horns (transducers)...
antennas may use a single transducer focused into a parabolic reflector to form a parabolicloudspeaker, or an array of speaker drivers and horns (transducers)...
company based in Berkeley, California that manufactures self-powered loudspeakers, multichannel audio show control systems, electroacoustic architecture...
A parabolic microphone uses a parabolic reflector to collect and focus sound waves onto a microphone receiver, in much the same way that a parabolic antenna...
with contact microphones. Parabolic microphones are used to capture sounds on the field during football games. The parabolic dish has been compared metaphorically...
noodle vendors continue this tradition, and those who do would use a loudspeaker playing a recorded charumera.[citation needed] A zurna was used by frontman...
amplifier (toroid) ferrite impedances, beads Motor / Generator Solenoid Loudspeaker and microphone Electrical components that pass charge in proportion to...
human-usable form: an audio signal is converted to sound waves by a loudspeaker or earphones, a video signal is converted to images by a display, while...
performers as Vestal Virgins, ignites a torch by placing it inside a parabolic mirror which focuses the sun's rays; she then lights the torch of the...
and horns are used as waveguides for sound in musical instruments and loudspeakers, and specially-shaped metal rods conduct ultrasonic waves in ultrasonic...
turns the electrical signals into visual images. An audio amplifier and loudspeaker, which turns electrical signals into sound waves (speech, music, and...
acoustic, surface water waves, gravity waves, or matter waves as well as in loudspeakers as electrical waves. The word interference is derived from the Latin...
transmitted by local radio stations. The sound is reproduced either by a loudspeaker in the radio or an earphone which plugs into a jack on the radio. The...
Radar Stylised lightning flash and parabolic dish Psychological operations Electronic schematic symbol for loudspeaker, evocative of propaganda Reconnaissance...
for long-distance transmissions in the early 1920s. Using a system of parabolic reflector antennae, Marconi's assistant, Charles Samuel Franklin, rigged...
Solutions to this equation have been developed using Green's functions and Parabolic Equation (PE) Methods, most notably via the Kokhlov–Zablotskaya–Kuznetzov...
included: Stabilization of sine wave oscillators Protection of tweeters in loudspeaker enclosures; excess current that is too high for the tweeter illuminates...
found at Johnson's residence, and an electronic listening device with a parabolic microphone was found in Peters' residence after search warrants were issued...
substations. Audio processing equipment, such as audio power amplifiers and loudspeakers. Demodulation of a high-frequency carrier wave such as an FM radio transmission...
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