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The source-filter frame of prominence.

G Fant1, A Kruckenberg, J Liljencrants

  • 1Department of Speech, Music and Hearing, The Royal Institute of Technology, KTH, Stockholm, Sweden. gunnar@speech.kth.se

Phonetica
|September 19, 2000
PubMed
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This study explores how speech intensity relates to vocal tract aerodynamics and voice production. Findings suggest a motor component in perceived speech prominence, particularly in Swedish vowels.

Area of Science:

  • Phonetics
  • Speech Science
  • Acoustic Phonetics

Background:

  • Prosodic parameters are crucial for speech production.
  • Understanding the relationship between speech intensity, vocal tract filter, voice source, and aerodynamics is essential.
  • Subglottal pressure and fundamental frequency are key intensity determinants with complex covariation.

Purpose of the Study:

  • To investigate the relationship between prosodic parameters and the speech production process.
  • To analyze the role of subglottal pressure and fundamental frequency in speech intensity.
  • To introduce and evaluate a new intensity parameter, SPLH, for voice source analysis.

Main Methods:

  • Speech analysis using displays incorporating perceptually scaled syllable prominence.

Related Experiment Videos

  • Measurement and analysis of speech intensity, subglottal pressure, and fundamental frequency.
  • Introduction of a new intensity parameter (SPLH) related to sonority.

    • Main Results:

    • Speech intensity is linked to vocal tract filter, voice source, and aerodynamics.
    • A new intensity parameter, SPLH, provides insights into voice source spectral slope when combined with sound pressure level.
    • High long stressed vowels in Swedish exhibit sonority minima, indicating a potential motor component in prominence perception.

    Conclusions:

    • Prosodic parameters are intricately linked to the physical processes of speech production.
    • The new SPLH parameter offers valuable information for voice source analysis.
    • Motor control likely plays a role in the perception of speech prominence, as evidenced in Swedish vowel production.