Document Detail

Respiratory constraints on speech production: starting an utterance.
MedLine Citation:
PMID:  14714814     Owner:  NLM     Status:  MEDLINE    
The aim of this research is to model the sequences of respiratory and articulatory events that occur when a speaker starts talking. In this paper, the focus is placed on a set of timing landmarks--utterance onset, phonation onset, and the initial peak in subglottal pressure--in relation to the first sound segment in the utterance and the location of the first syllable in the utterance that is judged as prominent by a listening panel. Simultaneous recordings of the acoustic signal, airflow, lung volume, and subglottal pressure as estimated from esophageal pressure were collected from four native speakers of American English. The timing of the initial alveolar pressure peak generally coincides with a prominent syllable if that syllable is the first or second syllable in the utterance, and precedes later prominences. There is considerable scatter in phonation pressure and phonation onset time across speakers and utterances. Normalizing these parameters to the initial pressure peak provides a more coherent view of the pressure trajectory and the influence of the initial sound segment on phonation parameters. Use of the data in the development of a model of the respiratory system during speech is discussed.
Janet Slifka
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  114     ISSN:  0001-4966     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2003 Dec 
Date Detail:
Created Date:  2004-01-12     Completed Date:  2004-03-01     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3343-53     Citation Subset:  IM    
Speech Communication Group, Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA.
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MeSH Terms
Air Pressure
Functional Residual Capacity / physiology
Phonation / physiology*
Pulmonary Ventilation / physiology*
Speech / physiology*
Speech Acoustics
Speech Perception
Vital Capacity / physiology
Grant Support

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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