Home → News → Gesture Control System Uses Sound Alone → Full Text
By Technology Review
May 7, 2012
![[article image]](https://cacm.acm.org/system/assets/0000/7878/5712.techreview.interface_by_sound.large.jpg?1476779408&1336425543 "SoundWave")
When you learned about the Doppler Effect in high school physics class—the wave frequency shift that occurs when the source of the wave is moving, easily illustrated by a passing ambulance—you probably didn't envision it helping control your computer one day.
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