[Preliminary design for a VI system combining the voice acoustic analyzing and glottal image analyzing].
This work is directed at developing a virtual instrument system as an accessorial diagnostic instrument for laryngeal diseases. Programmed with LabWindows/CVI, the system combines the voice acoustic analyzing function with the glottal image measuring function. The voice acoustic analyzing system can sample, store and replay vocal signals; can extract and analyze parameters, including fundamental frequency (F0), frequency perturbation quotient (FPQ), amplitude perturbation quotient(APQ), harmonics-to-noise ratio (HNR), jitter frequency (JF), Shimmer; and can do 3D sound graph analysis. The glottal image analyzing system can sample and store the image observed by the laryngostroboscope; can display any phase in one cycle of the vibration of the vocal cords or a slow and continuous movement of vibrating vocal cords; can snap and save the diagnostic frame of image; and can extract the parameters of the image such as the length and area of the glottis, the length and area of the vocal cords and the diseased part.
Pan
Yan
Y
Department of Biomedical Engineering, Medical School, Shandong University, Jinan 250012, China. panyan@sdu.edu.cn
Liu
Yan
Y
Cai
Xiaolan
X
Li
Qiao
Q
Meng
Yan
Y
Xu
Xin
X
Sun
Wenhong
W
Zhang
Yuhua
Y
Li
Xin
X
Qi
Yan
Y
D003198:Computer Simulation; D003936:Diagnosis, Computer-Assisted / Q000295:instrumentation* / Q000379:methods; D005931:Glottis / Q000502:physiology*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007818:Laryngeal Diseases / Q000175:diagnosis; D014584:User-Computer Interface; D014831:Voice / Q000502:physiology*