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Related Experiment Videos

A note on the variability of timing control.

T H Crystal1, A S House

  • 1Communications Research Division, Institute for Defense Analyses, Princeton, NJ 08540-3699.

Journal of Speech and Hearing Research
|September 1, 1988
PubMed
Summary
This summary is machine-generated.

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Speech duration analyses reveal strong relationships between mean values and standard deviations, meaning they cannot independently describe speech production. These findings impact understanding speech development in children.

Area of Science:

  • Speech Science
  • Motor Control
  • Developmental Psychology

Background:

  • Understanding speech production involves analyzing acoustic features like duration.
  • Mean and standard deviation of durations are common metrics in speech analysis.
  • Previous research has not fully explored the interdependence of these duration metrics.

Purpose of the Study:

  • To investigate the functional relationships between mean duration and standard deviation of durations in connected speech.
  • To determine if mean and standard deviation of durations can serve as independent descriptors of speech production.
  • To discuss the implications for interpreting duration data in studies of child motor development.

Main Methods:

  • Collected connected-speech signals from adult talkers categorized as "slow" and "fast".

Related Experiment Videos

  • Analyzed duration data for various sound categories across different talkers.
  • Calculated mean values and standard deviations for speech durations.

    • Main Results:

    • Strong functional relationships were observed between mean duration and standard deviation across sound categories and talkers.
    • These relationships indicate that mean and standard deviation are not independent descriptors of speech production.
    • Typical duration distributions were presented to illustrate these findings.

    Conclusions:

    • The interdependence of mean and standard deviation limits their use as independent speech production metrics.
    • Findings necessitate re-evaluation of how standard deviation is interpreted in developmental studies of motor control.
    • Future research should consider these functional relationships when analyzing speech duration in children.