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Science 25 Jul 2019 Scientists develop a ...

Scientists develop artificial throat that could someday aid mute people speak

ANI
Published Jul 25, 2019, 2:13 pm IST
Updated Jul 25, 2019, 2:13 pm IST
To make their artificial throat, the researchers laser-scribed graphene on a thin sheet of polyvinyl alcohol film.
The flexible device measured 0.6 by 1.2 inches or about double the size of a person's thumbnail. (Photo: American Chemical Society website)
 The flexible device measured 0.6 by 1.2 inches or about double the size of a person's thumbnail. (Photo: American Chemical Society website)

Researchers have developed a wearable artificial throat that when attached to the neck like a temporary tattoo can transform throat movements into sounds.

Recently, He Tian, Yi Yang, Tian-Ling Ren, and colleagues developed a prototype artificial throat but because the device needed to be taped to the skin, it wasn't comfortable enough to wear for long periods of time. So the researchers wanted to develop a thinner, skin-like artificial throat that would adhere to the neck like a temporary tattoo.

 

To make their artificial throat, the researchers laser-scribed graphene on a thin sheet of polyvinyl alcohol film.

The flexible device measured 0.6 by 1.2 inches or about double the size of a person's thumbnail.

The researchers used water to attach the film to the skin over a volunteer's throat and connected it with electrodes to a small armband that contained a circuit board, microcomputer, power amplifier, and decoder.

When the volunteer noiselessly imitated the throat motions of speech, the instrument converted these movements into emitted sounds, such as the words "OK" and "No."

 

The researchers said that, in the future, mute people could be trained to generate signals with their throats that the device would translate into speech.

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