[Relationship between voice acoustic parameters and vocal quality].
OBJECTIVE
This research is aimed at looking for the effect acoustic parameters of voice quality through the Spearman correlation analysis between auditory-perceptual judgment of voice quality and synthesized acoustic parameters.


METHODS
Thirty-six vowel samples of /ae/ synthesized with six acoustic parameters (F0, Jitter, Shimmer, NNE, Spectral tilt, Formant Flutter), each parameter dimension included 25% coped ones, altogether 45 samples. Then give the serial number to each sample after their order is randomized. The sound samples were given by computer, intensity was fixed at 70dB. Eight famous ENT doctors participated in the task of auditory-perceptual judgment. Give the grades to G, R, B, resulting that there are high inherent consistency (P<0.01). Then do the Spearman correlation analysis with each acoustic parameter respectively.


RESULTS
There are significant correlation between the auditory-perception (G, R, B) and Jitter, Shimmer and NNE (P<0.01).


CONCLUSIONS
Jitter, Shimmer and NNE are effect acoustic parameters reflecting the voice quality. Human voice is multidimensional. The combination the auditory-perceptual (G, R, B) judgment with acoustic analysis is the best method of assessing the voice quality.
Pre-education and Special Education School, Speech and Hearing Rehabilitation Research Institute, East China Normal University, Shanghai, 200062, China. tigerdrs@msn.com
Zhaomin
Z
Huang
Ping
P
Wan
D000162:Acoustics; D000328:Adult; D001307:Auditory Perception; D006801:Humans; D008297:Male; D008875:Middle Aged; D013061:Speech Acoustics; D014827:Vocal Cords; D014833:Voice Quality