[Microperturbation of vocal cord vibrations, jitter and shimmer].
The cycle-to-cycle variability of the period duration (jitter) and the period amplitude (shimmer) are measures for the micro-instability of vocal fold vibrations. A short survey is presented of the definition of jitter and shimmer, a number of calculation methods, the normal values, and the effects of age and voice pathology.
Debruyne
F
F
Otorhinolaryngologie, K.U. Leuven.
D000328:Adult; D000368:Aged; D000375:Aging / Q000502:physiology; D006801:Humans; D008875:Middle Aged; D010699:Phonation; D012016:Reference Values; D014832:Voice Disorders / Q000503:physiopathology*; D014833:Voice Quality / Q000502:physiology
Microperturbatie van de stembandtrillingen: jitter en shimmer.