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Related Experiment Videos

Evaluation of context effects in sentence recognition.

Adelbert W Bronkhorst1, Thomas Brand, Kirsten Wagener

  • 1TNO Human Factors, Soesterberg, The Netherlands.

The Journal of the Acoustical Society of America
|June 27, 2002
PubMed
Summary

This study validates a context effects model for speech recognition, accurately predicting sentence recognition scores and improving upon existing models. The findings offer new insights into speech perception and context utilization.

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Area of Science:

  • Auditory perception
  • Speech processing
  • Psycholinguistics

Background:

  • The Bronkhorst et al. model for context effects was developed for printed text.
  • Speech recognition evaluation often uses sentence tests with varying signal-to-noise ratios.
  • Existing models may not fully capture the nuances of context effects in speech recognition.

Purpose of the Study:

  • To evaluate the applicability of the Bronkhorst et al. model to German sentence recognition tests.
  • To compare the model's performance with existing relationships between word and sentence recognition probabilities.
  • To investigate context effects in both auditory and orthographic speech perception.

Main Methods:

  • Analysis of German sentence recognition data from normal-hearing listeners.

Related Experiment Videos

  • Adaptive paradigms varying signal-to-noise ratio.
  • Experiment comparing auditory and orthographic sentence presentation with missing words.

    • Main Results:

    • The model accurately reproduced speech recognition scores and incomplete response proportions across signal-to-noise ratios.
    • The model provided a better account of the word-to-sentence recognition probability relationship than the p(w) = p(e)^j model.
    • Significant differences in model parameters were observed between auditory and orthographic presentation modes.

    Conclusions:

    • The Bronkhorst et al. model effectively generalizes to speech recognition tasks.
    • New parameters (j and j') offer complementary insights into context effects.
    • Differences in model parameters between auditory and orthographic modes highlight distinct context utilization strategies.