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Related Experiment Videos

Talk your way round--a speech interface to a virtual museum.

L Evett1, Y K Tan

  • 1Department of Computing, The Nottingham Trent University, Burton Street, UK. lindsay.evett@ntu.ac.uk

Disability and Rehabilitation
|August 17, 2002
PubMed
Summary

A low-cost speech interface for virtual reality (VR) was developed, showing high command recognition rates. This technology offers improved accessibility for disabled users, demonstrating potential as assistive technology (AT).

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Area of Science:

  • Human-Computer Interaction
  • Virtual Reality Technology
  • Assistive Technology Development

Background:

  • Virtual reality (VR) technologies offer immersive experiences but often require complex input methods like keyboards and mice.
  • Accessibility to VR can be limited for individuals with physical disabilities or those lacking specific technical skills.
  • Developing intuitive and cost-effective interfaces is crucial for broader adoption of VR.

Purpose of the Study:

  • To develop a speech interface for a virtual world using affordable software.
  • To evaluate the usability and effectiveness of this speech interface, particularly for disabled users.
  • To explore the potential of speech interfaces as assistive technology (AT) and in universal design for VR.

Main Methods:

  • The speech interface system was primarily built using minimal-cost software solutions.

Related Experiment Videos

  • System performance was evaluated by measuring command repetition rates for successful recognition across diverse user voices.
  • Initial usability was assessed through user sessions without prior instruction.

    • Main Results:

    • The speech interface achieved high command recognition, with most commands requiring less than two repetitions on average.
    • Specific 'teleportation' commands showed a higher repetition rate (2.4), with clear, rectifiable reasons identified.
    • The system demonstrated ease of use without instruction, receiving generally positive user feedback.

    Conclusions:

    • A functional and reliable speech interface for virtual worlds has been successfully developed with minimal cost.
    • The developed system shows significant promise for enhancing VR accessibility for individuals with physical or skill-based limitations.
    • This interface exemplifies both assistive technology (AT) and universal design principles, paving the way for future improvements and testing.