This device has the potential to certify the use of Ultrasound in your
environment. There are some people who may want to follow the
development of this device. If you live near Northwestern University,
you might want to contact Hao F. Huang, the inventor, about detecting
Ultrasound in your home.
http://www.mccormick.northwestern.edu/news/articles/2017/02/new-method-to-detect-ultrasound-with-light.html
Another way to grab your location and listen to every sound in your
vicinity. In the featured article, Lily Hay Newman, the author of “HOW
TO BLOCK THE ULTRASONIC SIGNALS YOU DIDN'T KNOW WERE TRACKING YOU”
states:
“Dystopian corporate surveillance threats today come at
us from all directions. Companies offer "always-on" devices that listen
for our voice commands, and marketers follow us around the web to create
personalized user profiles so they can
(maybe) show us ads we'll actually click. Now marketers have been
experimenting with combining those web-based and audio approaches to
track consumers in another disturbingly science fictional way: with
audio signals your phone can hear, but you can't.”
This device has the potential to certify the use of Ultrasound in your
environment. There are some people who may want to follow the
development of this device. If you live near Northwestern University,
you might want to contact Hao F. Huang, the inventor, about detecting
Ultrasound in your home. 