Directional Speakers - Ultrasonic Audio Technologies
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Homebrew parametric speaker - Make:
Directional Speaker - Acouspade™ - Ultrasonic Audio Technologies
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Ultrasonic Parametric Speaker Testings - "Sound Lazer" - YouTube
Parametric Speaker Test - YouTube
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Soundlazer reveals second generation parametric speaker
Super directional speaker kit - SWITCH-SCIENCE
Near-field characteristics of the parametric loudspeaker using ultrasonic transducers - ScienceDirect
Ultrasonic Sound Gun (Parametric Speaker) - Hackster.io
Applications of Ultrasonic Directive Speakers - Audfly Technology (Suzhou) Co., Ltd.
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PierAisa #467: Ultrasonic Parametric Speaker - Test suono (parte2) - YouTube
ultrasonic directional speaker with 40kHz frequency Parametric Speaker System for museum - AliExpress
Amazon.com: ELTEM/PROPA-U50 / Directional Loudspeaker, Directional Speaker, Ultrasonic Speaker, Directional Sound System for Museums, Exhibits, Art Gallery and Digital Signage – Black
Soundlazer "Snap" - The Directional Parametric Speaker by Richard Haberkern — Kickstarter
Parametric speaker | takafumi ide
Parametric Speaker
Soundlazer by Richard Haberkern — Kickstarter
HIFI ultrasonic directive(parametric) speaker kit(assembled)10mmx48pcs | eBay
Parametric Speakers - Focusonics®
