[Change of Fo and vocal range of pathological voice].
OBJECTIVE
To study the relationship between Fo and true or falsetto range in four phonation modes.


METHODS
Testing Fo of lowest true voice, comfortable voice, highest true voice and falsetto voice.


RESULTS
In pathological voice, Fo of lowest true voice increases, Fo of highest falsetto voice reduces, true and falsetto voice range become thin and the change of falsetto voice range is more obvious.


CONCLUSIONS
Fo of falsetto highest voice reduces, falsetto voice rang become thin in pathological voice.
Zhang
Z M
ZM
Department of Otolaryngology, No 202 Hospital of PLA, Shenyang 110003.
Yang
S L
SL
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013018:Sound Spectrography; D014827:Vocal Cords / Q000503:physiopathology*; D014832:Voice Disorders / Q000503:physiopathology*; D014833:Voice Quality