ultrasonic

Ultrasonic haptic vision system

Ultrasonic haptic vision system

Rohan Sharma and Jeff Buente, at Cornell University, posted detailed notes on their haptic vision project: The ultrasonic haptic vision system enables a person to navigate hallways and around large objects without sight, through the use of an ultrasonic rangefinder that haptically interfaces with the user via tiny vibrating motors mounted on the user’s head. […]

Homebrew parametric speaker

Homebrew parametric speaker

If you’re familiar with the audio spotlight, then you now how very awesome narrow beam ultrasonic speaker devices can be. They can project a sound efficiently over long distances without spreading like common speakers. One can essentially walk into the ultrasonic line-of-fire and begin to hear sound abruptly – certainly an interesting effect. Though not […]