A Prosthesis for Speech


	A Prosthesis for Speech

seaj11

7-12-2008 4:50 PM

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technology, speech, science

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Technology Review, 
July 3, 2008
</P><P><DIV>Boston University <A class="thought" href="javascript:loadBrain('Research')">research</A>ers are developing <A class="thought" href="javascript:loadBrain('Brain')">brain</A>-reading <A class="thought" href="javascript:loadBrain('Computer')">computer</A> <A class="thought" href="javascript:loadBrain('Software')">software</A> that is in the early stage of translating <A class="thought" href="javascript:loadBrain('Thought')">thought</A>s into speech, starting with vowels. 
</DIV>

An implanted electrode picks up <A class="thought" href="javascript:loadBrain('Nerve')">nerve</A> signals related to movement of the mouth, lips, and jaw. These signals are sent <A class="thought" href="javascript:loadBrain('Wireless')">wireless</A>ly to a <A class="thought" href="javascript:loadBrain('Computer')">computer</A>, where <A class="thought" href="javascript:loadBrain('Software')">software</A> analyzes them for <A class="thought" href="javascript:loadBrain('Pattern')">pattern</A>s that most likely denote a particular sound, generating formant frequencies (the resonant frequencies of the vocal tract). These are converted into sounds via a speech <A class="thought" href="javascript:loadBrain('Synthesizer')">synthesizer</A> and played through a speaker for feedback and training.

</p> <P></p> <BR /><A target="_new" href="http://www.technologyreview.com/Biotech/21037/">Read Original Article&gt;&gt;</A>
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