Audio spot lighting is a very recent technology that creates focused beams of sound similar to light beams coming out of a flashlight. By shining sound to one location, specific listeners can be targeted with sound without others nearby hearing it. It uses a combination of non-linear acoustics and some fancy mathematics. But it is real and is fine to knock the socks of any conventional loud speaker.

This acoustic device comprises a speaker that fires inaudible ultrasound pulses with very small wavelength which act in a manner very similar ....etc

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ABSTRACT
Audio spot lighting is a very recent technology that creates focused beams of sound similar to light beams coming out of a flashlight. By shining sound to one location, specific listeners can be targeted with sound without others nearby hearing it. It uses a combination of non-linear acoustics and some fancy mathematics. But it is real and is fine to knock the socks of any conventional loud speaker. This acoustic device comprises a speaker that fires inaudible ultrasound pulses with very small wavelength which ....etc

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audio spotlighting ppt free download

Abstract
Audio spot lighting is a very recent technology that creates focused beams of sound similar to light beams coming out of a flashlight. By shining sound to one location, specific listeners can be targeted with sound without others nearby hearing it. It uses a combination of non-linear acoustics and some fancy mathematics. But it is real and is fine to knock the socks of any conventional loud speaker.

This acoustic device comprises a speaker that fires inaudible ultrasound pulses with very small w ....etc

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audio spotlighting



INTRODUCTION

It is the Production of focused beams of Sound

Combination of Non-Linear Acoustics & Fancy Mathematics.

Uses Ultra-sonic Energy to create Narrow beams of sound

Non Linearity of the air aid the device for its working

Devices used: Parametric Array, CMUTs

To Focus Sound into Narrow Beam
.A low beam angle
Smaller the wave length, Lesser the beam angle.
.Large aperture size
Increase aperture size of speakers
(10m dia for 20Hz) - practically difficult.

Propertie ....etc

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