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Spatiotemporal vibratory dynamics of vocal fold scar using high-speed digital imaging

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3 Author(s)

A new application of high-speed imaging to measure spatiotemporal vibratory behaviours of a vocal fold scar is investigated in excised larynx experiments. Eigenmode analysis reveals that pathologically scarred vocal folds produce spatiotemporal asymmetry and spread energy across high-order eigenmodes. The global entropy of scarred vocal folds is statistically higher than the normal vocal folds. This study suggests that spatiotemporal analysis may provide a valuable tool for describing the spatiotemporal dynamics of vocal fold scars.

Published in:

Electronics Letters  (Volume:46 ,  Issue: 7 )