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Using speech recognition to enhance the Tongue Drive System functionality in computer access.

Xueliang Huo1, Maysam Ghovanloo

  • 1GT-Bionics Lab, School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, USA.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
|January 19, 2012
PubMed
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The Tongue Drive System (TDS), a tongue-operated assistive technology, combined with speech recognition, significantly improves computer access for individuals with severe physical disabilities. This integration enhances performance in tasks requiring both pointing and text entry.

Area of Science:

  • Assistive Technology
  • Human-Computer Interaction
  • Rehabilitation Engineering

Background:

  • Severe physical disabilities limit computer and powered wheelchair access.
  • The Tongue Drive System (TDS) offers wireless, tongue-controlled AT for computer access and wheelchair navigation.
  • Existing TDS provides six discrete commands for pointing and typing.

Purpose of the Study:

  • To enhance the typing performance of the Tongue Drive System (TDS).
  • To evaluate the combined efficacy of TDS and speech recognition technology.
  • To improve computer access for individuals with severe physical disabilities.

Main Methods:

  • Integrated a microphone, audio codec, and wireless audio link into the TDS's 3-axial magnetic sensor array.
  • Combined the enhanced TDS with Dragon Naturally Speaking speech recognition software.

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  • Conducted preliminary evaluations comparing the integrated system against individual technologies.

    • Main Results:

    • The combined TDS and speech recognition system demonstrated significantly higher performance.
    • Performance improvements were particularly notable in tasks requiring both pointing and text entry.
    • Web surfing tasks showed marked benefits from the integrated assistive technology.

    Conclusions:

    • Combining the Tongue Drive System with speech recognition offers synergistic benefits for assistive technology users.
    • This integrated approach provides enhanced computer access, especially for complex tasks.
    • The system shows promise for improving independence and quality of life for individuals with severe physical disabilities.