Microsoft Kinect has been overall an exciting technological advancement in gesture control, to move things forward and enable use of the technology without any dedicated specialized hardware. Microsoft Research has now came up with "SoundWave" - a project aimed to gesture enable your computer using no specialized sensors or devices but just the in-built speaker and microphone. The technology makes smart use of "Doppler effect" to detect movements and gestures near a computer, the complex algorithm used to send-receive and decode gesture controls have some exciting usage scenarios like auto wake and sleep your computer, playing gesture controlled games and day-to-day computer navigation using air-gestures as shown in the video - add to that you can use this technology in a crowded place with lots of noise and even while playing audio from your speakers .

Full demonstration video after the jump.