FREE FULL TEXTAnahtar Kelimeler: Akustik ses analizi; endolarengeal mikrocerrahi;ses kalitesi/analiz/kayıt.
Objectives: In this study, changes in quality of voice in
patients who underwent endolaryngeal microsurgery were
assessed by objective voice analyses.
Patients and Methods: Thirty patients (17 females, 13
males; mean age 34.3±11.5 years; range 17 to 65 years),
who underwent endolaryngeal microsurgery because of
benign vocal cord pathology and 25 people (12 females,
13 males; mean age 28.7±6.6 years; range 22 to 50 years),
without laryngeal pathology were included in this study.
Voice records, which were taken from the patients pre- and
postoperatively, and also from the control group, were analyzed
acoustically and spectrographically. Cool-Edit software
was used for voice recording, and Praat software was
used for voice analysis. Parameters, which were obtained in
the study, were compared statistically.
Results: When pre- and postoperative acoustic analysis
results were compared, it was found out that there was
significant difference in all parameters except fundamental
frequency. While S/Z ratio, and jitter and shimmer values
were significantly decreased postoperatively, maximum
phonation time, harmonic/noise ratio, and intensity values
were significantly increased. No important changes were
detected in fundamental frequency value. Postoperative
and control group findings were not significantly different.
At long term average spectrum analysis of the phonetically
balanced read passage records, postoperative
amplitude value was increased significantly, compared to
Conclusion: Acoustic and spectrographic voice analyses
are objective methods which can be used to assess
effects of endolaryngeal microsurgery on quality of