J Korean Soc Laryngol Phoniatr Logoped.  2020 Dec;31(2):71-77. 10.22469/jkslp.2020.31.2.71.

Reliability of OperaVOX^TM against Multi-Dimensional Voice Program to Assess Voice Quality before and after Laryngeal Microsurgery in Patient with Vocal Polyp

• Kim SW
• Kim SY
• Cho JK
• Jin SM
• Lee SH

• KMID: 2511143
• DOI: http://doi.org/10.22469/jkslp.2020.31.2.71

Abstract

Background and Objectives
OperaVOX^TM (Oxford Wave Research Ltd.) is a portable voice analysis software package designed for use with iOS devices. As a relatively cheap, portable and easily accessible form of acoustic analysis, OperaVOX^TM may be more clinically useful than laboratory-based software in many situations. The aim of this study was to evaluate the agreement between OperaVOX^TM and Multi-Dimensional Voice Program (MDVP; Computerized Speech Lab) to assess voice quality before and after laryngeal microsurgery in patient with vocal polyp. Materials and Method Twenty patients who had undergone laryngeal microsurgery for vocal polyp were enrolled in this study. Preoperative and postoperative voices were assessed by acoustic analysis using MDVP and OperaVOX^TM. A five-seconds recording of vowel /a/ was used to measure fundamental frequency (F0), jitter, shimmer and noise-to-harmonic ratio (NHR).
Results
Several acoustic parameters of MDVP and OperaVOX^TM related to short-term variability showed significant improvement. While pre-operative value of F0, jitter, shimmer, NHR was 155.75 Hz (male: 125.37 Hz, female: 183.37 Hz), 2.20%, 6.28%, 0.16, post-operative values of these parameter was 164.34 Hz (male: 129.42 Hz, female: 199.26 Hz), 2.15%, 5.18%, 0.14 Hz in MDVP. While pre-operative value of F0, jitter, shimmer, NHR was 168.26 Hz (male: 135.16 Hz, female: 201.37 Hz), 2.27%, 6.95%, 0.26, post-operative values of these parameters was 162.72 Hz (male: 128.267 Hz, female: 197.18 Hz), 1.71%, 5.36%, 0.20 in OperaVOX^TM. There was high intersoftware agreement for F0, jitter, shimmer with intraclass correlation coefficient.
Conclusion
Our results showed that the short-term variability of acoustic parameters in both MDVP and OperaVOX^TM were useful for the objective assessment of voice quality in patients who received laryngeal microsurgery. OperaVOX^TM is comparable to MDVP and has high intersoftware reliability with MDVP in measuring the F0, jitter, and shimmer.

Keyword

Voice quality; Voice disorder; Speech acoustics; Vocal cord; Mobile application; 음질; 음성 장애; 음향분석; 성대; 모바일 응용 소프트웨어