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Quote of the day

Just because something doesn’t do what you planned it to do doesn’t mean it’s useless.

 

Thomas Edison

Device lets users 'speak silently' with a computer by just thinking

RATE THIS! +21
Posted in Software on 11th Apr, 2018 02:23 PM by Alex Muller

MIT researchers have invented a system that allows someone to communicate silently. The AlterEgo system consists of a wearable device with electrodes that pick up otherwise undetectable neuromuscular subvocalizations — saying words “in your head” in natural language.

 

The signals are fed to a neural network that is trained to identify subvocalized words from these signals. Bone-conduction headphones also transmit vibrations through the bones of the face to the inner ear to convey information to the user — privately and without interrupting a conversation. The device connects wirelessly to any external computing device via Bluetooth.

 

A silent, discreet, bidirectional conversation with machines. “Our idea was: Could we have a computing platform that’s more internal, that melds human and machine in some ways and that feels like an internal extension of our own cognition?,” says Arnav Kapur, a graduate student at the MIT Media Lab who led the development of the new system. Kapur is first author on an open-access paper on the research presented in March at the IUI ’18 23rd International Conference on Intelligent User Interfaces.

 

In one of the researchers’ experiments, subjects used the system to silently report opponents’ moves in a chess game and silently receive recommended moves from a chess-playing computer program. In another experiment, subjects were able to undetectably answer difficult computational problems, such as the square root of large numbers or obscure facts. The researchers achieved 92% median word accuracy levels, which is expected to improve. “I think we’ll achieve full conversation someday,” Kapur said.

 

“We basically can’t live without our cellphones, our digital devices,” says Pattie Maes, a professor of media arts and sciences and Kapur’s thesis advisor. “But at the moment, the use of those devices is very disruptive. If I want to look something up that’s relevant to a conversation I’m having, I have to find my phone and type in the passcode and open an app and type in some search keyword, and the whole thing requires that I completely shift attention from my environment and the people that I’m with to the phone itself.

 

“So, my students and I have for a very long time been experimenting with new form factors and new types of experience that enable people to still benefit from all the wonderful knowledge and services that these devices give us, but do it in a way that lets them remain in the present.”*


Tags: brainneurosciencehardwaresoftwareresearch

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