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ABSTRACT THE portions of sound film tracks reproduced in Fig. 1 are from registrations of the vowels _oo_ (as in _boo_), _ee_ (as in _bee_), ah (as in _bah_), _ay_ (as in _bay_), _æ_ (from
_a_ in _an_). The registration in each case shows a series of contiguous short bits of vibration in each of which the movement begins strongly and fades rapidly to zero. Such a movement
occurs only as a free vibration, that is, as the movement of a vibratory system disturbed in its equilibrium and then left to itself. A vibration of this kind is produced when the air in the
vocal cavity is rarefied or condensed by snapping the thumb out of the mouth or by closing and suddenly opening the glottis. Such a sudden rarefaction or condensation may be termed a
_puff_. Repeated puffs will produce a series of free vibrations. Access through your institution Buy or subscribe This is a preview of subscription content, access via your institution
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about institutional subscriptions * Read our FAQs * Contact customer support SIMILAR CONTENT BEING VIEWED BY OTHERS PRINTABLE 3D VOCAL TRACT SHAPES FROM MRI DATA AND THEIR ACOUSTIC AND
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MOVEMENT Article Open access 16 August 2021 REFERENCES * See _NATURE_, 130, 275; 1932. Article CAS ADS Google Scholar Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS *
Phonetic Laboratory, 62 Leytonstone Road, London, E.15 E. W. SCRIPTURE Authors * E. W. SCRIPTURE View author publications You can also search for this author inPubMed Google Scholar RIGHTS
AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE SCRIPTURE, E. Puff and Profile Theory of the Vowels. _Nature_ 136, 435–436 (1935).
https://doi.org/10.1038/136435c0 Download citation * Issue Date: 14 September 1935 * DOI: https://doi.org/10.1038/136435c0 SHARE THIS ARTICLE Anyone you share the following link with will be
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