Voice analisys

BACKGROUND AND OBJECTIVES: Research involving acoustic analysis does not always consider the level of background noise in the room where the recording process is going to be carried out, or if they do, the maximum value of background noise used varies from author to author. The objective of this research is to establish if the parameters: f0 , Jitter, Shimmer and Alpha ratio vary in relation to different levels of background noise in the room where the recording process is carried out and to establish a maximum value of this...

OBJECTIVE: Voice quality disorders remain a problem with classical surgical method which is expected to decrease with new minimally invasive methods. We aimed to examine whether there is an impairment in voice quality among our patients who have undergone open minimally invasive parathyroid surgery. METHODS: Forty-seven primer hyperparathyroidism patients included in the study. Their video laryngoscopic evaluations and voice analyses were done in pre-operative and post-operative 6th month, and changes in the voice quality were examined...

OBJECTIVE: Examination of the vocal function and acoustic analysis in 905 teachers in La Rioja. DESIGN: A case control study: 576 cases and 329 controls. PATIENTS: 905 teaching staff of La Rioja: 589 female and 316 male. METHODS: All teachers filled in a standard questionnaire, ENT and vocal function examination, videolaryngostroboscopy and acoustic analysis with MDVP. RESULTS: The prevalence of voice disorders among teaching staff was 57%...