Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Modulation frequency and modulation level owing to vocal microtremor.

Jean Schoentgen1

  • 1Laboratory of Experimental Phonetics, Université Libre de Bruxelles, Brussels, Belgium. jschoent@ulb.ac.be

The Journal of the Acoustical Society of America
|August 21, 2002
PubMed
Summary

Vocal microtremor, a normal vocal modulation, shows consistent frequency and level across different speakers and vowels. Differences in studies often stem from varying analysis cutoff frequencies.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Airflow Features Obtained From Voluntary Throat Clearing Compared to Voluntary Cough and Induced Reflexive Cough in a Healthy Population.

International journal of language & communication disorders·2025
Same author

Acoustic Features of Airway Protective Maneuvers as Biomarkers of Radiation-Associated Dysphagia and Penetration/Aspiration in Head and Neck Cancer Patients.

Head & neck·2025
Same author

Assessment of radio(chemo)therapy-related dysphagia in head and neck cancer patients based on cough-related acoustic features: a prospective phase II national clinical trial (ACCOUGH-P/A trial).

Trials·2023
Same author

Acoustic Analysis of Voluntary Coughs, Throat Clearings, and Induced Reflexive Coughs in a Healthy Population.

Dysphagia·2023
Same author

Assessment of cough in head and neck cancer patients at risk for dysphagia-An overview.

Cancer reports (Hoboken, N.J.)·2021
Same author

Detection of Diplophonation in Audio Recordings of German Standard Text Readings.

Journal of voice : official journal of the Voice Foundation·2018

Area of Science:

  • Laryngology
  • Speech Science
  • Acoustic Phonetics

Background:

  • Vocal microtremor is a physiological, slow modulation of vocal fold vibration.
  • It is distinct from pathological vocal tremor and not perceived by listeners.
  • Understanding its characteristics is crucial for voice analysis.

Purpose of the Study:

  • To quantify modulation frequency and level in vocal microtremor.
  • To investigate variations across different speaker groups and vowel sounds.
  • To clarify discrepancies in existing research data.

Main Methods:

  • Sustained vowels [a], [i], and [u] were recorded from normophonic and mildly dysphonic male and female speakers.
  • Vocal microtremor modulation frequency and level were analyzed.

Related Experiment Videos

  • Data were compared across speaker demographics and vowel types.

    • Main Results:

    • No significant differences in modulation frequency or level were found between genders, phonation types (normophonic vs. mildly dysphonic), or vowel timbres.
    • Typical interquartile ranges for modulation frequency were 2.0-4.7 Hz.
    • Typical interquartile ranges for modulation level were 0.4%-1.3%.

    Conclusions:

    • Vocal microtremor characteristics are robust across diverse speakers and vowels.
    • Discrepancies in literature are attributed to differing analytical cutoff frequencies.
    • These findings provide a standardized reference for vocal microtremor analysis.