Ultrasonic Parametric Speaker DEEP S22

[@matino717]

Nice. Any info on how you set up the destructive interference on the oustide rays?

[@matino717]

Did you just inverse polarity on the outside speakers or did something else to help directionality?

[@物理学就是上帝]

Parametric speaker? No. Tinnitus-inducing torture device? Yes.

[@100-pc-notbot]

schematic please :)

[@BigHorndb188]

Mini sound cannon

[@alec9527]

what happens when you wear it like a helmet

[@74n3r]

could be share github ?

[@qVpAudio]

You can see what I do about the “Parametric Speaker”；

[@kibi6563]

Can you please make me one of those? I will pay you.

[@seeharvester]

You need a new card boy.