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Formant frequency analysis of children's spoken and sung vowels using sweeping fundamental frequency production
KTH, School of Computer Science and Communication (CSC), Speech, Music and Hearing, TMH, Music Acoustics.ORCID iD: 0000-0002-4804-6310
1999 (English)In: Journal of Voice, ISSN 0892-1997, E-ISSN 1557-8658, Vol. 13, no 4, 570-582 p.Article in journal (Refereed) Published
Abstract [en]

High-pitched productions present difficulties in formant frequency analysis due to wide harmonic spacing and poorly defined formants. As a consequence, there is little reliable data regarding children's spoken or sung vowel formants. Twenty-nine 11-year-old Swedish children were asked to produce 4 sustained spoken and sung vowels. In order to circumvent the problem of wide harmonic spacing, F-1 and F-2 measurements were taken from vowels produced with a sweeping F-0. Experienced choir singers were selected as subjects in order to minimize the larynx height adjustments associated with pitch variation in less skilled subjects. Results showed significantly higher formant frequencies for speech than for singing. Formants were consistently higher in girls than in boys suggesting longer vocal tracts in these preadolescent bays. Furthermore, formant scaling demonstrated vowel dependent differences between boys and girls suggesting non-uniform differences in male and female vocal tract dimensions. These vowel-dependent sex differences were not consistent with adult data.

Place, publisher, year, edition, pages
1999. Vol. 13, no 4, 570-582 p.
Keyword [en]
formant frequencies, children, sex differences
National Category
Otorhinolaryngology Occupational Therapy
URN: urn:nbn:se:kth:diva-93473DOI: 10.1016/S0892-1997(99)80011-3ISI: 000084319600010OAI: diva2:516386

QC 20150623

Available from: 2012-04-18 Created: 2012-04-18 Last updated: 2015-06-23Bibliographically approved

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