News Sources wrote an interesting post today on
Here’s a quick excerpt
One of Microsoft’s latest research projects offers gesture controls using a computer’s speakers, microphone and inaudible sounds. The technology is called “SoundWave” and it utilizes the Doppler effect to detect gestures. With the help of a computer’s speakers and microphone, SoundWave can detect the frequency change of a sound wave by using inaudible sounds and measuring the change in feedback …
Read the rest of this great post here