1. The Effect of Timbre, Pitch, and Vibrato on Vocal Pitch-Matching Accuracy 
Sirisha Duvvuru, Molly Erickson 
Journal of Voice 
Volume 30, Issue 3, Pages 378.e1-378.e12 (May 2016)
DOI: /j.jvoice
Copyright © 2016 The Voice Foundation Terms and Conditions

2. Figure 1
Formant frequencies, output spectra, and spectral centroid from a synthetic mezzo-soprano and soprano at the pitches C4 and F5.
Journal of Voice  , 378.e1-378.e12DOI: ( /j.jvoice )
Copyright © 2016 The Voice Foundation Terms and Conditions

3. Figure 2
Hypothetical representation of the effect of formant pattern on pitch-matching accuracy.
Journal of Voice  , 378.e1-378.e12DOI: ( /j.jvoice )
Copyright © 2016 The Voice Foundation Terms and Conditions

4. Figure 3 Main effect of formant pattern on mean centroid in semitones.
Journal of Voice  , 378.e1-378.e12DOI: ( /j.jvoice )
Copyright © 2016 The Voice Foundation Terms and Conditions

5. Figure 4
Mean difference in cents as a function of formant pattern and vibrato at the prephonatory set and midpoint of the vowel for the pitches C4, B4, and F5.
Journal of Voice  , 378.e1-378.e12DOI: ( /j.jvoice )
Copyright © 2016 The Voice Foundation Terms and Conditions

6. Figure 5
Effect of pitch in vibrato and no vibrato conditions averaged across sopranos and mezzo-sopranos for the midpoint of the vowel.
Journal of Voice  , 378.e1-378.e12DOI: ( /j.jvoice )
Copyright © 2016 The Voice Foundation Terms and Conditions

7. Figure 6
Vector plots showing the direction and magnitude of pitch change from prephonatory set to the midpoint of the vowel for vibrato and no vibrato conditions at the pitches C4, B4, and F5 a function of pattern.
Journal of Voice  , 378.e1-378.e12DOI: ( /j.jvoice )
Copyright © 2016 The Voice Foundation Terms and Conditions

8. Figure 7
Vector plot showing the direction and magnitude of pitch change from prephonatory set to the midpoint of the vowel averaged across pattern and vibrato/no vibrato conditions as a function of pitch.
Journal of Voice  , 378.e1-378.e12DOI: ( /j.jvoice )
Copyright © 2016 The Voice Foundation Terms and Conditions