Neural Prosthetic Restores Speech in Human Volunteer

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Neural Prosthetic Restores Speech in Human Volunteer
« on: December 02, 2008, 08:48:31 pm »
Neural Prosthetic Restores Speech in Human Volunteer
     




A neural prosthetic
device developed at Boston University has partially restored the
speech of a mute human volunteer. The brain implant decodes neural
signals from the brain's speech motor cortex and uses them to operate a
formant synthesizer to reproduce speech. So far, researchers are
concentrating on producing individual vowel sounds before progressing to
words and sentences. The formant
synthesis method is based on a mathematical acoustic model rather
than by concatenation of sampled words or morphemes. The video above
shows the subject learning to pronounce the vowel sounds "uh-oo". This
research is
being done by Professor Frank
Guenther and his team. For more details on
how it all works, see the team's 2007
Society for Neuroscience conference poster (PDF format) or the most
recent paper from Frank Guenther, Neural
mechanisms underlying auditory feedback control of speech (PDF
format). via
naturenews.
   

http://robots.net/article/2704.html
     

 


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