This technology means paralyzed people could talk again

Aug 28, 2015 17:59 GMT  ·  By

In a report released this Friday, scientists at Loughborough University in the UK detail their work designing and creating a device that can read people's breath and put it into words. 

The device, described by its inventors as probably the first of its kind, would make it possible for paralyzed individual to speak - better said, communicate - again via their breath.

So, how does it work?

As noted, the device works by recording an individual's breath and translating it into proper words, which are then read out loud by a speech synthesizer.

In their report, the Loughborough University scientists explain that each word corresponds to a specific breath pattern. Their device is programmed to record such patterns or breath signals, as the researchers call them, and transform them into words.

“The prototype analyses changes in breathing patterns and converts ‘breath signals’ into words using pattern recognition software and an analogue-to-digital converter. A speech synthesizer then reads the words aloud,” the researchers explain.

Better yet, the team say the device is programmed to learn from its user, meaning that by controlling and varying the speed of their breathing, individuals can create their very own vocabulary and language to be transmitted by the machine.

In a series of experiments, the Loughborough University scientists recorded a 97.5% success rate in terms of teaching their so-called AAC (Augmentative and Alternate Communication) device to pin down words and phrases.

Potential uses for the device

Study leaders David Kerr and Kaddour Bouazza-Marouf imagine their device being used by people who, either due to paralysis or some other condition, have lost their ability to voluntary control their muscles and speak.

The device could also come in handy in intensive care units, where the researchers say it could be used to make it possible for people fitted with ventilators to communicate with their doctors and loved ones.

“This device could transform the way people with severe muscular weakness or other speech disorders communicate,” says specialist David Kerr.

As mentioned, the researchers have so far created only a prototype of this breath-to-words device. At least for now, it is unclear when they hope to make their Augmentative and Alternate Communication gizmo available to the public.