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AudioBeam
The AudioBeam directional loudspeaker works with ultra-sound, modulating the
audible sound onto an ultrasonic carrier frequency, much like a radio station does,
and then emitting this signal via 150 special piezoelectric pressure transducers.
Audible sound is only generated at a distance from the AudioBeam, when the signal
is demodulated because of the non-linearity of air. This can be imagined like the
creation of many small, virtual loudspeakers in the ultrasonic zone.
No sound is audible beside or behind an AudioBeam – you will only hear the audio
information if you are directly within the sound beam, or if the sound is refl ected
by a smooth surface. This makes AudioBeam an ideal tool for information terminals,
exhibitions, or even conferences where various AudioBeams emit several languages
to a defi ned part of the auditorium.
As the effects of ultrasound on the human body have not yet been thoroughly
investigated, AudioBeam is fi tted with a sensor that switches the loudspeaker off
when it registers movement within four metres.
AudioBeam is suited to a wide variety of applications:
For theme parks and exhibitions
AudioBeam is an ideal tool for theme parks where it creates amazing effects
with moving sound when combined with a small stepper motor. In an exhibition,
AudioBeam will give explanations on an exhibit, which are only audible within a
defi ned area. When mounted opposite an exhibit, the work of art will seem to
”talk“ to the visitors, as the ultrasonic beam is refl ected by smooth surfaces.
For the PC
PC users can forget all about headphones. AudioBeam is their personal
loudspeaker – without disturbing others in the offi ce.
Automatic machines with voice function
A very discreet way of addressing customers: the sound will only reach the person
directly in front of the machine.
In safety areas
AudioBeam can be used to directly address an individual person within a safety
area – putting them in an audio spotlight.
AudioBeam
Conference and Information Systems | AudioBeam