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Purpose: The aim of this study was to evaluate the effect of the vocal warm-up and cool-down on the singing voice through Fundamental Frequency (F0), Jitter, Shimmer and harmonics-to-noise ratio (HNR). Methods: Thirty-two female singing students were recorded four times while uttering the vowel [a] for at least 5''. The first two recordings were collected before and after a vocal warm-up session and the last two before and after a vocal cool-down session. Between those sessions the participants underwent an intense vocal activity. Results: Results showed significant variations in the average values of the parameters measured. The mean value of the F0 after intense vocal activity turned to be higher than the one measured before the warm-up session, as well as the mean F0 measured after singing compared to the one measured after the vocal warm-up. On the other end, the mean F0 after the vocal cool-down resulted to be lower than that measured before. After the vocal warm-up session Jitter and Shimmer decreased while HNR increased. In addition, a decrease was detected in comparison with the average value of Jitter and Shimmer before vocal warm-up and after vocal cool-down, whereas HNR increased. There was also a decrease between the Shimmer before the vocal warm-up and after an intense phonatory activity while HNR increased. Conclusions: Our study highlights the effect of the vocal warm-up on acoustic parameters. The reduction in F0 observed after the cool-down session confirms its positive effect in helping professional vocal recovery and reducing vocal fold tension.

Objectives: Presbyphonia is the sequence of physiological events related to the process of senility of the vocal folds. The aim of our analysis was to provide deeper knowledge of presbyphonia, raising awareness of this condition as well as giving basic suggestions on how to treat related vocal alterations., Study Design: This is a randomized study., Methods: In 2015, we conducted a study on 182 subjects. Each participant underwent an ENT examination (video-laryngo-stroboscopy and subjective acoustic analysis using the General degree of dysphonia; degree of voice Instability; degree of voice Roughness; degree of voice Breathiness; degree of voice Asthenia; degree of voice Strain (GIRBAS) scale) and a logopedic examination (anamnesis, medical history, and acoustic voice analysis using the free software Praat)., Results: The comparison between the voice of young people and the seniors showed significant differences for the following Praat-analyzed acoustic parameters: modal fundamental frequency (F0) in women (P < 0,0001), fraction of locally unvoiced frames (P < 0,0001), number of voice breaks (P < 0,0001), jitter local (P < 0,0001), jitter local abs (P < 0,0001), jitter rap (P < 0,0001), jitter ppq5 (P < 0,0001), shimmer local (P < 0,0001), shimmer local dB (P < 0,0001), shimmer apq3 (P < 0,0001), shimmer apq5 (P < 0,0001), mean N/H (P < 0,0001), and mean H/N (P < 0,001), for both sexes., Conclusions: The Praat was confirmed to be a useful tool to detect the existence of the variation of the speech parameters in relation to aging and to quantify statistically significant differences that show a general deterioration in the voice quality, defined numerically. This might lead to a phoniatric treatment or speech therapy, which could improve patients' quality of life, leading to better vocal performance and social and communicative interaction., (Copyright © 2017 The Voice Foundation. Published by Elsevier Inc. All rights reserved.)

We conducted a study of 60 patients with different nasal pathologies who complained of nasal obstruction. Our goal was to evaluate the reliability of rhinomanometry, acoustic rhinometry, and the measurement of mucociliary transport time in helping make the diagnosis of nasal pathologies. We also sought to discover whether there is a correlation between the findings of these objective tests and the results of patients' own subjective assessments of nasal obstruction. We found that acoustic rhinometry was more specific and more sensitive than rhinomanometry in diagnosing rhinopathies in patients with structural anomalies. Symptom scores as rated by patients on the visual analog scale frequently did not correlate with objective measures, as patients often overestimated the severity of their obstruction. However, for a few patients, there was a correlation between symptom scores and mucociliary transport times.