The Effect of CAPE-V Sentences on Cepstral/Spectral Acoustic Measures in Dysphonic Speakers.
OBJECTIVE
To investigate the effect of connected speech stimuli from the Consensus Auditory-Perceptual Evaluation of Voice (CAPE-V) on cepstral/spectral acoustic measurements.


METHODS
Recordings from 20 participants seeking treatment for dysphonia were analyzed in this study. The participants read the 6 sentence stimuli from the CAPE-V at a comfortable pitch and loudness. Acoustic measures of cepstral peak prominence (CPP) and its standard deviation, the low-to-high spectral ratio and its standard deviation (LH and LHsd) and the multiparametric measure Cepstral Spectral Index of Dysphonia were acquired from each sentence recording and applied to analyses.


RESULTS
A significant main effect for sentence type was present on the measurements of CPP, LH and LHsd. Post hoc pairwise comparisons revealed the most robust effect on CPP from the all-voiced sentence 'We were away a year ago'. For the measures of LH and LHsd, sentence effects were significant for the majority of comparisons.


CONCLUSIONS
The connected speech stimuli from the CAPE-V affected cepstral/spectral acoustic measurements differentially. These findings support the rationale for using the various CAPE-V stimuli during clinical assessment, and indicate the need for further investigations to inform clinical practice.
Texas Christian University, Fort Worth, Tex., USA.
Christopher R
CR
Watts
D000328:Adult; D000368:Aged; D001307:Auditory Perception; D055154:Dysphonia / Q000175:diagnosis* / Q000503:physiopathology; D005260:Female; D006801:Humans; D007818:Laryngeal Diseases / Q000175:diagnosis* / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D010700:Phonetics; D012189:Retrospective Studies; D012815:Signal Processing, Computer-Assisted; D012984:Software; D013018:Sound Spectrography; D014827:Vocal Cords / Q000503:physiopathology; D014833:Voice Quality / Q000502:physiology*; D055815:Young Adult