Abstract
Average1/3-oct filter spectra of vowels, sung by seven professional
maleand seven professional female singers, were measured. The material
consistedof nine different vowels, sung at six fundamental frequencies
(F0,ranging from 98 up to 880 Hz). For each vowelthe singers were
requested to sing in the following ninemodes: neutral, light, dark,
pressed, free, loud, soft, straight, andextra vibrato. To study origins
of spectral variation, the quantityof spectral variance, based on
band filter sound levels, wasused. For each fundamental frequency
and separately for males andfemales, portions of total spectral variance
associated with the maineffects and the interactions of the factors
``vowels,'' ``singers,'' and``modes of singing'', were computed.
A considerable decrease in totalspectral variance was found when
F0 rose from 98 to880 Hz, mostly due to the reduced spectral variance
betweenvowels. Above about F0=660 Hz spectral variation was dominated
bydifferences related to singers and modes of singing. Additional
analysesrevealed that for all F0 values (1) vowel spectra ofthe tenor
and the soprano singers varied more than thoseof the bass and the
alto singers, (2) there wasonly a slight dependence of spectral differences
between vowels onthe mode of singing, and (3) the amount of spectralvariation
in a vowel, sung by different singers with differentmodes of singing,
was vowel dependent.
Users
Please
log in to take part in the discussion (add own reviews or comments).