Blog - Ultrasonic Directional Speaker 

Page / - last modified by Victor Zhang on 00:19, 22/07/2020 

Ultrasonic Directional Speaker 
last modified by Victor Zhang
on 00:19, 22/07/2020

Table of Contents

•	Open source one:https://hackaday.io/project/9085/logs
•	Probably first saw in "future weapons" as a military equipment for crowd control
•	It uses the directional properties of ultrasound
•	Modulates and trick our ear of hearing it
•	Presumably can achieve a lot of interesting effects, like spatial sound
Example:

Posted by Victor Zhang  · Permalink