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Related Experiment Videos

Hand-held text-to-speech device for the non-vocal disabled.

R I Damper1, J W Burnett, P W Gray

  • 1Department of Electronics and Computer Science, University of Southampton, UK.

Journal of Biomedical Engineering
|October 1, 1987
PubMed
Summary
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A new portable, battery-powered synthetic speech aid was developed for individuals with speech disabilities. This device converts user-keyed text into synthesized speech, improving communication accessibility.

Area of Science:

  • Assistive Technology
  • Speech Synthesis
  • Biomedical Engineering

Background:

  • Non-vocally disabled individuals require effective communication aids.
  • Existing speech aids may lack portability or advanced features.
  • Rule-based speech synthesis presents challenges in intelligibility and naturalness.

Purpose of the Study:

  • To develop a hand-held, battery-powered synthetic speech aid for the non-vocally disabled.
  • To improve the quality and intelligibility of synthesized speech from a rule-based system.
  • To incorporate user-friendly features for portability and ease of use.

Main Methods:

  • A text-to-speech (TTS) system was designed using 349 letter-to-sound rules and continuity/intonation/stress algorithms.
  • The system utilizes a single-chip series formant speech synthesizer and CMOS components for portability.

Related Experiment Videos

  • Power-saving features and a unique one-handed keyboard were implemented for extended battery life and ease of operation.
  • A two-line liquid crystal display (LCD) with editing functions facilitates message composition and silent communication.

    • Main Results:

    • A functional hand-held synthetic speech aid was constructed.
    • The device converts user-keyed text into audible speech.
    • Efforts were made to enhance speech quality and intelligibility within the constraints of the synthesizer and portable design.

    Conclusions:

    • The developed device offers a portable and accessible solution for non-vocally disabled individuals.
    • The system demonstrates advancements in rule-based speech synthesis for assistive technology.
    • Further improvements in speech quality may be limited by current synthesizer technology and system constraints.