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Shaping new sounds.

Timothy D Griffiths1, Kai Alter1, Barbara Shinn-Cunningham2

  • 1Biosciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom.

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Summary
This summary is machine-generated.

Throat singing from Tuva was studied using MRI scans. Researchers discovered the unique vocal production mechanisms behind this complex singing style.

Keywords:
acoustic phoneticsbiphonationhumanphysics of living systemsspeech biomechanicstuvan throat singing

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Area of Science:

  • Acoustic phonetics
  • Medical imaging
  • Ethnomusicology

Background:

  • Throat singing, particularly the Tuvan style, is known for producing multiple pitches simultaneously.
  • The precise physiological mechanisms underlying this phenomenon have not been fully elucidated.

Purpose of the Study:

  • To investigate the laryngeal and vocal tract biomechanics during Tuvan throat singing.
  • To identify the anatomical structures and movements responsible for the production of harmonic overtones.

Main Methods:

  • Magnetic Resonance Imaging (MRI) was employed to capture dynamic cross-sectional images of the vocal tract.
  • Participants performed various Tuvan throat singing techniques while undergoing MRI scans.

Main Results:

  • MRI data revealed significant and coordinated movements of the epiglottis and pharyngeal walls.
  • Specific adjustments in the vocal tract shape were observed, correlating with the production of distinct harmonic frequencies.

Conclusions:

  • Tuvan throat singing involves complex, active modulation of the vocal tract geometry.
  • These findings provide a biomechanical explanation for the generation of multiple simultaneous pitches in this unique vocal tradition.