Acoustic parameters of the electronic and mechanical artificial larynx in alaryngeal patients / 中国耳鼻咽喉头颈外科

ABSTRACT

0.05). There were no significant differences in sound, maximum sound intensity, breath sessions, base frequency and amplitude between the patients using artificial larynx and control group, but there were significant difference in fundamental frequency perturbation, amplitude perturbation, standardized noise energy and harmonious noise ratio(P