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Submitted via IRC for AndyTheAbsurd
AlterEgo, [Arnav] Kapur's new wearable device system, can detect what you're saying when you're talking to yourself, even if you're completely silent and not moving your mouth.
The technology involves a system of sensors that detect the minuscule neuromuscular signals sent by the brain to the vocal cords and muscles of the throat and tongue. These signals are sent out whenever we speak to ourselves silently, even if we make no sounds. The device feeds the signals through an A.I., which "reads" them and turns them into words. The user hears the A.I.'s responses through a microphone that conducts sound through the bones of the skull and ear, making them silent to others. Users can also respond out loud using artificial voice technology.
[...] Kapur is currently testing the device on people with communication limitations through various hospitals and rehabilitation centers in the Boston area. These limitations could be caused by stroke, cerebral palsy or neurodegenerative diseases like ALS. In the case of ALS, the disease affects the nerves in the brain and spinal cord, progressively robbing people of their ability to use their muscles, including those that control speech. But their brains still send speech signals to the vocal cords and the 100-plus muscles involved in speaking. AlterEgo can capture those signals and turn them into speech. According to Kapur's research[pdf], the system is about 92 percent accurate.
Source: https://www.smithsonianmag.com/innovation/device-can-hear-voice-inside-your-head-180972785/
(Score: 2, Disagree) by darkfeline on Thursday August 08 2019, @02:40AM (4 children)
Microphones and speakers are the same thing. Also, the original use of the word "microphone" referred to an ear trumpet used as a hearing aid
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(Score: 0) by Anonymous Coward on Thursday August 08 2019, @02:58AM (1 child)
A condenser mic is not a speaker.
(Score: 0) by Anonymous Coward on Thursday August 08 2019, @01:00PM
> A condenser mic is not a speaker.
True, but the mechanical/electrical configuration looks a lot like a very small electrostatic loudspeaker.
(Score: 3, Informative) by janrinok on Thursday August 08 2019, @07:41AM
Sometimes that is true, but by no means always.
(Score: 2) by DannyB on Thursday August 08 2019, @02:35PM
A long time ago, in a galaxy far, far away . . .
there were these microphones called "carbon mics". The diaphragm moved by sound waves compressed carbon powder, altering its resistance to match the sound wave. The neato factor was that one of these could be wired in series with a speaker and 6V battery to talk remotely without any vacuum tubes.
Long ago, there were telephones that were wired into your home. These phones were big and bulky. Often affixed to a wall. Or on a counter top with a cord that went into a wall plate. (Later plugs were used so that the phone could be unplugged from the wall.) These phones had a handset with a coiled cord. The mic in these handsets was a carbon mic. You could remove the handset from two phones. Wire the mics (mouthpiece) and speakers (earpiece) together in series with a 6V "lantern" battery, and you could talk between the garage and a playhouse in the back yard, needing only two wires going between the two locations.
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