Using Music to Track Movements

Continuing looks at tracking us and what we do.

Computer scientists use music to covertly track body movements, activity by James Urton

" ... Now researchers at the University of Washington have demonstrated how it is possible to transform a smart device into a surveillance tool that can collect information about the body position and movements of the user, as well as other people in the device’s immediate vicinity. Their approach involves remotely hijacking smart devices to play music embedded with repeating pulses that track a person’s position, body movements, and activities both in the vicinity of the device as well as through walls. .... "