title: Vocal shimmer in sustained phonation.
abstract: Vocal shimmer during the sustained phonation of /a/, /i/, /u/ was investigated for thirty-one adult male speakers using an automatic analysis program. The results showed an overall average shimmer of 0.39 dB with a critical value of 0.98 dB. Significant correlations were found among shimmer, jitter and fo standard deviation.
mesh_terms: D000293:Adolescent; D000328:Adult; D006801:Humans; D007818:Laryngeal Diseases / Q000175:diagnosis; D008297:Male; D010699:Phonation; D014831:Voice; D014833:Voice Quality