Speech and Language Technology for Disabled Persons

Stockholm, Sweden
May 31 - June 2, 1993

A Speech Therapy Workstation Providing Visual Feedback of Segmental Quality

Alan A. Wrench (1), M. S. Jackson (2), Mervyn A. Jack (1), D. S. Soutar (2), A. G. Robertson (3), Janet MacKenzie Beck (4), John Laver (1)

(1) Centre for Speech Technology Research, University of Edinburgh, Edinburgh, Scotland
(2) Plastic Surgery Unit, Canniesburn Hospital, Bearsden, Glasgow
(3) Beatson Oncology Centre, Western Infirmary, Glasgow
(4) Department of Speech Pathology and Therapy, Queen Margaret College, Edinburgh

A computer-based speech therapy workstation is being developed as part of a project to help patients who have undergone treatment for intra-oral cancer. This paper outlines features extracted from the acoustic speech signal used to discriminate between speech categories and describes the design of the visual display. For each sound category, pre-treatment recordings provide targets on a 2-dimensional visual chart which the patient can "aim" for. The patient is able to change the position of a pointer on the screen towards the target by adjusting articulation. The workstation is based on an IBM PC-AT with 16-bit, 20kHz digitisation and playback, a close-talking microphone, amplifier and speaker. Software runs in the Windows (R) graphical environment.

Full Paper

Bibliographic reference.  Wrench, Alan A. / Jackson, M. S. / Jack, Mervyn A. / Soutar, D. S. / Robertson, A. G. / Beck, Janet MacKenzie / Laver, John (1993): "A speech therapy workstation providing visual feedback of segmental quality", In SLTDP-93, 133-136.