Contrary to popular belief, American Sign Language (ASL) isn’t just signed English. It’s a completely distinct language with its own unique grammar system, which can make communication between those who know ASL and those who don’t challenging. Now, researchers at Cornell University have developed the SpellRing — a quarter-sized device with a built-in microphone and speaker that’s meant to be worn on the thumb. Here’s how it works: The microphone and speaker release and pick up silent sound waves as the wearer moves their hands and fingers. Meanwhile, a tiny gyroscope also tracks hand motions. A deep-learning algorithm processes these sonar images and translates them into ASL letters in real time. The developers tested the gadget using 20 experienced and beginner ASL signers who were asked to spell over 20,000 words. The SpellRing’s accuracy ranged between 82% and 92%, varying based on the length and difficulty of the terms. Though not perfect, the numbers are still impressive. Researchers hope to one day pair it with eyeglasses that process the upper body movements and facial expressions of signers.
