Acoustic and laryngographic measures of the laryngeal reflexes of linguistic prominence and vocal effort in German.

The Journal of the Acoustical Society of America
Christine Mooshammer

Abstract

This study uses acoustic and physiological measures to compare laryngeal reflexes of global changes in vocal effort to the effects of modulating such aspects of linguistic prominence as sentence accent, induced by focus variation, and word stress. Seven speakers were recorded by using a laryngograph. The laryngographic pulses were preprocessed to normalize time and amplitude. The laryngographic pulse shape was quantified using open and skewness quotients and also by applying a functional version of the principal component analysis. Acoustic measures included the acoustic open quotient and spectral balance in the vowel /e/ during the test syllable. The open quotient and the laryngographic pulse shape indicated a significantly shorter open phase for loud speech than for soft speech. Similar results were found for lexical stress, suggesting that lexical stress and loud speech are produced with a similar voice source mechanism. Stressed syllables were distinguished from unstressed syllables by their open phase and pulse shape, even in the absence of sentence accent. Evidence for laryngeal involvement in signaling focus, independent of fundamental frequency changes, was not as consistent across speakers. Acoustic results on various ...Continue Reading

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Citations

Nov 7, 2014·The Journal of the Acoustical Society of America·Jianjing Kuang, Patricia Keating
Dec 19, 2015·Journal of Child Language·Katharina ZahnerBettina Braun
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Oct 2, 2017·The Journal of the Acoustical Society of America·Jianjing Kuang
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Oct 9, 2019·The Journal of the Acoustical Society of America·Jianjing KuangBing'er Jiang
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