Audio Spotlight - How a Audio Spotlight Works

Dr. Bruce Denardo explains how a audio spotlight works and gives a jaw-dropping demonstration.
The Audio spotlight is uses a set of transducers to generate a 65 kHz beam and because the wavelength of this beam is so small, it does not spread. In one sense, the audio spotlight is similar to a laser.
How do we make this 65 khz beam of acoustic energy audible, so you can hear something when the acoustic spotlight is pointed at you?
Watch the video to find out. And don't forget to subscribe. We'll be releasing more videos like this one every Monday.
Audio Spotlight - How a Audio Spotlight Works
• Audio Spotlight - How ...