Silent speech interfaces

Abstract

The possibility of speech processing in the absence of an intelligible acoustic signal has given rise to the idea of a 'silent speech' interface , to be used as an aid for the speech-handicapped, or as part of a communications system operating in silence-required or high-background noise environments. The article first outlines the emergence of the silent speech interface from the fields of speech production, automatic speech processing, speech pathology research, and telecommunications privacy issues, and then follows with a presentation of demonstrator systems based on seven different types of technologies. A concluding section underlining some of the common challenges faced by silent speech interface researchers, and ideas for possible future directions, is also provided.

DOI: 10.1016/j.specom.2009.08.002

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