Effects of an Auditor's Past Musical Experience on the Intelligibility of Vowel Sounds in Singing Page: 17
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17
TABLE II
PITCHES COVERING THE USABLE RANGE OF MOST SINGERS
IN THREE MODES OF NOTATION
1
C6 —
(c.
1047 Hz.)
G5—
(c.
784
Hz.)
E5—
(c.
659
Hz.)
C5—
(c.
523
Hz.)
. G4 —
(c.
392
Hz.)
. E4 —
(c.
330
Hz.)
C4 —
(c.
26 2
Hz.)
G3—
(c.
196
Hz.)
E3—
(c.
165
Hz.)
C3--
(c.
131
Hz.)
G2—
(c.
98 :
Hz.)
E2—
(c.
87 :
Hz.)
C2—
(c.
65 :
Hz.)
(all graduate students in French language). The auditors
were required to identify each vowel sound they heard.
Howie and Delattre found that all vowel sounds lost
intelligibility as the fundamental frequency rose, and all
vowels sung appreciably higher than the average center
frequencies of the first formants in speech were found to
be completely unintelligible. An important observation
was that all vowels sung on C6 (1056 Hz.) were consistently
identified as [a].
A likely explanation for such consistent perception
of [a] on C6 (1056 Hz.) is to be found in the
assumption that the ear effectively averages two
vowel formants which are close together, receiving
from these two formants an impression which is
highly similar to that which would be heard from one
formant placed at a position somewhere intermediate
between them . . . The fundamental tone of C6 (1056
Hz.) is thus considered to play the role of a single
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Bradley, C. Mark (Charles Mark). Effects of an Auditor's Past Musical Experience on the Intelligibility of Vowel Sounds in Singing, dissertation, December 1983; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc331919/m1/25/?rotate=270: accessed July 18, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .