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Is /h/ phonetically neutral?

Michael P Robb1, Yang Chen

  • 1Department of Communication Disorders, University of Canterbury, Christchurch, New Zealand. michael.robb@canterbury.ac.nz

Clinical Linguistics & Phonetics
|November 7, 2009
PubMed
Summary
This summary is machine-generated.

The articulation of the /h/ sound varies by language accent and sex, but does not significantly affect the following vowel sound. This study examined /h/ sound variations in American English and Mandarin-accented English speakers.

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Area of Science:

  • Phonetics and Speech Science
  • Linguistics
  • Acoustic Analysis

Background:

  • The /h/ sound is often assumed to provide a neutral phonetic context.
  • Previous research has not rigorously tested the stability or neutrality of /h/ articulation.
  • Understanding /h/ variations is crucial for speech analysis and language acquisition studies.

Purpose of the Study:

  • To investigate sex and language accent differences in /h/ articulation.
  • To assess the influence of /h/ on subsequent vowel articulation.
  • To determine the phonetic stability of the /h/ sound across different speaker groups.

Main Methods:

  • Acoustic analysis of /hVC/ phrases from 40 American English (AE) and 40 Mandarin-accented English (MAE) speakers.
  • Measurement of /h/ duration and vowel formant frequencies.
  • Statistical analysis to identify differences based on sex and language background.

Main Results:

  • No significant sex differences in /h/ duration were found within language groups.
  • /h/ duration varied considerably between AE and MAE speakers.
  • Male speakers produced the /h/ sound more frequently than female speakers, irrespective of language.
  • Vowel coarticulation following /h/ was minimal in both AE and MAE speakers.
  • /h/ production showed significant variation between language groups.

Conclusions:

  • The /h/ sound is not exclusively sex-linked and can vary due to non-biological factors like language accent.
  • Articulation of /h/ differs significantly between American English and Mandarin-accented English speakers.
  • /h/ articulation has a negligible impact on the articulation of immediately following vowels.