Visualize and Hear Ultrasonic Frequencies With a Third Ear #WearableWednesday

This project shows you how to convert ultrasonic frequencies into a range perceptible to the human ear.4Eyes6Senses shares this awesome project on instructables.Continuing my interest in wearable augmentations that visualize phenomena, I designed a “third ear” that enables you to listen and/or visualize ultrasonic frequencies. For perspective, the normal frequency...