Cepstral Analysis of Voice in Patients With Thyroidectomy
Clinical and Experimental Otorhinolaryngology
;
: 157-162, 2016.
Article
in English
| WPRIM
| ID: wpr-32542
ABSTRACT
OBJECTIVES:
The vocal changes after a thyroidectomy are temporary and nonsevere, therefore, obtaining accurate analytical results on the pathological vocal characteristics following such a procedure is difficult. For a more objective acoustic analysis, this study used the cepstral analysis method to examine changes in the patients' voices during the perioperative period regarding sustained vowel phonation.METHODS:
The sustained phonation of the five vowels (i.e., /a/, /e/, /i/, /o/, and /u/) by 35 patients with thyroidectomy were recorded by using a Multi-Speech program. Of the 35 patients, 10 were men and 25 were women, with an average age of 51.5 years. Voice data were collected a total of 3 times (preoperatively, 5-7 days after the operation, and 6 weeks after the operation) and were edited according to each fragment (on-set, mid, and off-set) for cepstral analysis.RESULTS:
The cepstral analysis on the patients' voices revealed no significant differences between the examination periods of all vowel phonations. However, analysis of the on-set fragment of the vowel /i/ revealed pathological characteristics in which the cepstral measurements of the voice were significantly lower after the operation than before the operation, with the cepstral measurements of the voice increasing further 6 weeks following surgery.CONCLUSION:
The results of the acoustic analysis on the on-set fragment of the vowel /i/ will be important data for characterizing the vocal changes during the perioperative period. This study contributes to future research on the mechanisms underlying changes in the voice of patients with a history of thyroid or neck surgery.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Phonation
/
Thyroid Gland
/
Thyroidectomy
/
Voice
/
Acoustics
/
Perioperative Period
/
Methods
/
Neck
Limits:
Female
/
Humans
/
Male
Language:
English
Journal:
Clinical and Experimental Otorhinolaryngology
Year:
2016
Type:
Article
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