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Directional Speakers - Ultrasonic Audio Technologies
https://ultrasonic-audio.com/
Directional Speakers - Ultrasonic Audio Technologies Acouspade™ Directional Speakers The Acouspade ™ i s a hyper-directional speaker, emitting a highly directional beam of sound. It is able to place a particular sound at a desired spatial location, while preserving silence where the sound is not needed.
Directional Audio System - Ultrasonic Audio Technologies
https://ultrasonic-audio.com/acouspade-technical-specification/
The main functional units of the modulator/amplifier in an ultrasound-based directional sound system are: − input amplifier and signal conditioner − low distortion quadrature oscillator − integrated multiplier with adder − D-class power amplifier
(PDF) A Directional Audible Sound System using …
https://www.researchgate.net/publication/283038076_A_Directional_Audible_Sound_System_using_Ultrasonic_Transducers
different ultrasonic frequencies could generate the directional audible sound due to acoustical nonlinearity. There are mainly two new waves, one of which …
Ultrasonic Acouspade-XLS Directional Audio Speaker ...
https://noisebgone.com/produkt/ultrasonic-acouspade-xls-directional-audio-speaker-external-amplifier/
Description Ultrasonic Acouspade-XLS Directional Audio Speaker produces extremely high-quality directional sound, which allows it to be heard loudly and clearly even in very noisy places. The emitter panel has two sections (Left and Right), which respectively emit two audio channels – Left and Right.
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