Logoped Phoniatr Vocol 2021 Jul 2:1-6. Epub 2021 Jul 2.
Department of Otorhinolaryngology, University of Health Science, Ankara Numune Training and Research Hospital, Ankara, Turkey.
Objective: To investigate the acoustic parameter changes after weight loss in bariatric surgery patients.
Materials And Methods: This prospective, longitudinal study was conducted with 15 patients with planned bariatric surgery, who were evaluated pre-operatively and at 6 months post-operatively. Fundamental frequency (F0), Formant frequency (F1, F2, F3, and F4), Frequency perturbation (Jitter), Amplitude perturbation (Shimmer) and Noise-to-Harmonics Ratio (NHR) parameters were evaluated for /a/, /e/, /i/, /o/, and /u/ vowels. Read More