Purpose Data on vowel formants have been derived primarily from static measures
representing an assumed steady state. This review summarizes data on formant frequencies …

This paper explores three aspects of a theory of speech production and perception: quantal
theory, enhancement, and overlap. The section on quantal theory makes the claim that every …

Purpose: Breathing is ubiquitous in speech production, crucial for structuring speech, and a
potential diagnostic indicator for respiratory diseases. However, the acoustic characteristics …

Children's speech presents a challenging problem for formant frequency measurement. In
part, this is because high fundamental frequencies, typical of a children's speech production …

During speech and singing, the vibrating vocal folds are acoustically loaded by resonant
ducts upstream (the trachea) and downstream (the vocal tract). Some models suggest that …

This paper presents the findings of an ultrasound study of 10 New Zealand English and 10
Tongan-speaking trombone players, to determine whether there is an influence of native …

In this paper, we study speech development in children using longitudinal acoustic and
articulatory data. Data were collected yearly from grade 1 to grade 4 from four female and …

Purpose The present study was designed to investigate the relation of formant transitions to
place-of-articulation for stop consonants. A speech production model was used to generate …

This paper presents a large-scale study of subglottal resonances (SGRs)(the resonant
frequencies of the tracheo-bronchial tree) and their relations to various acoustical and …

Experimental determinations of the acoustic properties of the subglottal airway, from the
trachea below the larynx to the lungs, may provide useful information for detecting airway …