Some applications of speech analysis to communication aids for the deaf
J. Pickett · IEEE Transactions on Audio and Electroacoustics · 1969
The problem of acoustic transmission of speech sounds to the deaf is discussed along with the related educational problems. Some methods of speech analysis which have been developed as prototypes of new speech aids are presented. Two types of new aids are covered: 1) tactual aids to speech communication, and 2) visual aids for monitoring of speech in speech training or to supplement speech reception.