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Perceptual evaluations of voice scatter in unison choir sounds.
KTH, Superseded Departments, Speech Transmission and Music Acoustics.ORCID iD: 0000-0002-3362-7518
1993 (English)In: Journal of Voice, ISSN 0892-1997, E-ISSN 1873-4588, Vol. 7, no 2, 129-135 p.Article in journal (Refereed) Published
Abstract [en]

The preferences of experiences listerners for pitch and formant frequency dispersion in unison choir sounds were explored using synthesized stimuli. Two types of dispersion were investigated: (a) pitch scatter, which arises when voices in an ensemble exhibit small differences in mean fundamental frequency, and (b) spectral smear, defined as such dispersion of formants 3 to 5 as arises from differences in vocal tract length. Each stimulus represented a choir section of five bass, tenor, alto, or soprano voices, producing the vowel [u], [a], or [ae]. Subjects chose one dispersion level out of six available, selecting the "maximum tolerable" in a first run and the "preferred" in a second run. The listeners were very different in their tolerance for dispersion. Typical scatter choices were 14 cent standard deviation for "tolerable" and 0 or 5 cent for "preferred." The smear choices were less consistent; the standard deviations were 12 and 7%, respectively. In all modes of assessment, the largest dispersion was chosen for the vowel [u] on a bass tone. There was a vowel effect on the smear choices. The effects of voice category were not significant.

Place, publisher, year, edition, pages
1993. Vol. 7, no 2, 129-135 p.
National Category
Other Medical Sciences not elsewhere specified
Research subject
Speech and Music Communication
URN: urn:nbn:se:kth:diva-179053DOI: 10.1016/S0892-1997(05)80342-XPubMedID: 8353626OAI: diva2:881149
Riksbankens Jubileumsfond

NR 20160125

Available from: 2015-12-09 Created: 2015-12-09 Last updated: 2016-01-25Bibliographically approved

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