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Written By: Agencies | Updated : March 10, 2014 12:27 PM IST
Researchers have developed a robot that can be attached to amputees, allowing its technology to be embedded into humans.
Professor Gil Weinberg had earlier built a band of robotic musicians in his Georgia Tech lab. The robotic drumming prosthesis has motors that power two drumsticks. The first stick is controlled both physically by the musicians' arms and electronically using electromyography (EMG) muscle sensors. The other stick 'listens' to the music being played and improvises. 'The second drumstick has a mind of its own,' said Weinberg, founding director of the Georgia Tech Center for Music Technology. 'The drummer essentially becomes a cyborg. It's interesting to see him playing and improvising with part of his arm that he doesn't totally control.'
The prosthesis was created for Jason Barnes, a drummer who was electrocuted two years ago and lost his right arm below the elbow. The Atlanta Institute of Music and Media student built his own prosthetic device shortly after the accident. It wasn't very flexible. He could bang the drums by moving his elbow up and down, but couldn't control the speed or bounce of the stick without a wrist or fingers. That's when Weinberg stepped in to create a single-stick device with sensors that responds to Barnes' bicep muscles. (Read: Partial paralysis: Robot-aided therapy to enhance mobility)
Weinberg, who has already built a robotic percussionist and marimba player that use computer algorithms to improvise with human musicians, took the prosthesis a step further. He added the second stick and gave it a 'musical brain. Regardless of how he uses the extra stick, the new prosthetic has already given Barnes capabilities he hasn't had since before the amputation. It's only the beginning for Weinberg. (Read: Can a robot have feelings?)
'Music is very time sensitive. You can hear the difference between two strokes, even if they are a few milliseconds apart,' said Weinberg. 'If we are able to use machine learning from Jason's muscles (and in future steps, from his brain activity) to determine when he intends to drum and have the stick hit at that moment, both arms can be synchronized.' (Read: FACE a robot that can 'feel'!)
Source: ANI
Image source: i.kinja-img.com/
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