Scientists at China's Tsinghua and Shanghai Jiao Tong universities have engineered a "graphene-based intelligent, wearable artificial throat" that can amplify a user's voice.
The 25-micrometer (0.0009-inch)-thick patch sticks to the skin above the larynx and is linked via wires to a battery-powered microcontroller.
The device monitors throat vibrations that are interpreted by an artificial intelligence model, which then projects artificial sound at up to 60 decibels through electrical input.
Tests indicated the device was more than 99% accurate when used by people speaking audibly, and more than 90% accurate for those who cannot audibly speak, like victims of post-stroke aphasia.
From Popular Science
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