Physics of phonation offset: Towards understanding relative fundamental frequency observations

2021 ◽  
Vol 149 (5) ◽  
pp. 3654-3664
Author(s):  
Mohamed A. Serry ◽  
Cara E. Stepp ◽  
Sean D. Peterson
Keyword(s):  
Fundamental Frequency ◽  
Relative Fundamental Frequency

Vocal fold kinematics and relative fundamental frequency as a function of obstruent type and speaker age

2021 ◽  
Vol 149 (4) ◽  
pp. 2189-2199
Author(s):  
Yeonggwang Park ◽  
Feng Wang ◽  
Manuel Díaz-Cádiz ◽  
Jennifer M. Vojtech ◽  
Matti D. Groll ◽  
...  
Keyword(s):  
Fundamental Frequency ◽  
Vocal Fold ◽  
Relative Fundamental Frequency

scholarly journals Relative Fundamental Frequency in Children With and Without Vocal Fold Nodules

2020 ◽  
Vol 63 (2) ◽  
pp. 361-371
Author(s):  
Elizabeth S. Heller Murray ◽  
Roxanne K. Segina ◽  
Geralyn Harvey Woodnorth ◽  
Cara E. Stepp
Keyword(s):  
Fundamental Frequency ◽  
Vocal Fold ◽  
Motor System ◽  
Older Children ◽  
Functional Differences ◽  
Subject Variability ◽  
Relative Fundamental Frequency ◽  
Acoustic Measure ◽  
Vocal Fold Nodules ◽  
Within Subject Variability

Purpose Relative fundamental frequency (RFF) is an acoustic measure that is sensitive to functional voice differences in adults. The aim of the current study was to evaluate RFF in children, as there are known structural and functional differences between the pediatric and adult vocal mechanisms. Method RFF was analyzed in 28 children with vocal fold nodules (CwVN, M = 9.0 years) and 28 children with typical voices (CwTV, M = 8.9 years). RFF is the instantaneous fundamental frequency ( f 0 ) of the 10 vocalic cycles during devoicing (vocal offset) and 10 vocalic cycles during the revoicing (vocal onset) of the vowels that surround a voiceless consonant. Each cycle's f 0 was normalized to a steady-state portion of the vowel. RFF values for the cycles closest to the voiceless consonant, that is, Offset Cycle 10 and Onset Cycle 1, were examined. Results Average RFF values for Offset Cycle 10 and Onset Cycle 1 did not differ between CwVN and CwTV; however, within-subject variability of Offset Cycle 10 was decreased in CwVN. Across both groups, male children had lower Offset Cycle 10 RFF values as compared to female children. Additionally, Onset Cycle 1 values were decreased in younger children as compared to those of older children. Conclusions Unlike previous work with adults, CwVN did not have significantly different RFF values than CwTV. Younger children had lower RFF values for Onset Cycle 1 than older children, suggesting that vocal onset f 0 may provide information on the maturity of the laryngeal motor system.

scholarly journals Automated Relative Fundamental Frequency Algorithms for Use With Neck-Surface Accelerometer Signals

2020 ◽  
Author(s):  
Matti D. Groll ◽  
Jennifer M. Vojtech ◽  
Surbhi Hablani ◽  
Daryush D. Mehta ◽  
Daniel P. Buckley ◽  
...  
Keyword(s):  
Fundamental Frequency ◽  
Relative Fundamental Frequency

scholarly journals Effects of Adventitious Acute Vocal Trauma: Relative Fundamental Frequency and Listener Perception

2016 ◽  
Vol 30 (2) ◽  
pp. 177-185 ◽  
Author(s):  
Elizabeth S.Heller Murray ◽  
Gabrielle L. Hands ◽  
Carolyn R. Calabrese ◽  
Cara E. Stepp
Keyword(s):  
Fundamental Frequency ◽  
Relative Fundamental Frequency
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