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Related Experiment Videos

User performance with speech recognition: a literature review.

H H Koester1

  • 1Center for Ergonomics, University of Michigan, Ann Arbor, Michigan 48109-2117, USA.

Assistive Technology : the Official Journal of RESNA
|January 18, 2003
PubMed
Summary

Speech recognition technology offers computer access for people with disabilities. However, user performance, especially for those with physical disabilities, significantly lags behind system potential, highlighting a need for further research.

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Area of Science:

  • Assistive Technology
  • Human-Computer Interaction
  • Disability Studies

Background:

  • Speech recognition systems are increasingly used for computer access by individuals with disabilities.
  • Understanding user performance is crucial for effective implementation and accommodation.
  • Existing research provides a foundation, but gaps remain, particularly for users with physical disabilities.

Purpose of the Study:

  • To review current knowledge on user performance with speech recognition systems.
  • To focus on the application of these systems for accommodating physical disabilities.
  • To identify barriers and propose future research directions.

Main Methods:

  • Literature review of studies on speech recognition user performance.
  • Analysis of performance data, focusing on text entry speeds.

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  • Examination of factors contributing to the performance gap.
  • Main Results:

    • Current speech recognition systems have a theoretical text entry speed of 150 words per minute.
    • Actual user performance in real-world applications ranges from 8 to 30 words per minute.
    • Significant barriers exist, including the time and effort required to correct recognition errors.

    Conclusions:

    • A substantial performance gap exists between the potential of speech recognition and actual user achievement.
    • Barriers such as error correction costs limit the effectiveness of these systems.
    • Further research is critically needed, especially studies involving users with physical disabilities to improve assistive technology.