The purpose of this study was to examine the algorithm-measuring capabilities used in the Time-Frequency Analysis Software Program for 32-bit Windows (TF32) for measuring fundamental frequency (F0), its dependent measures, and signal-to-noise ratio (SNR). The stability, accuracy, and linearity of its algorithm to systematic changes in aspiration noise and/or spectral slope (to mimic the percept...

BACKGROUND Vocal polyps are the products of voice overuse, misuse and abuse as the most common causative factors. Treatment generally advised for them are voice therapy and Microlaryngeal Phonosurgery (MLPS). The improved or changed quality of voice is generally assessed perceptually and can cause intra rater variability. In this study we compared and analysed the acoustic characteristics befor...

This study was carried out using a transversal design. It aimed to investigate possible changes of the normal voice in children before mutation, to create a database for the parameters used in the study, and to examine the use of fractal dimension and the largest Lyapunov exponent (LLE) in the assessment of nonpathological phenomena. Two hundred twelve children were enrolled: 111 females and 10...

PURPOSE To investigate the immediate effects of the high-pitched blowing vocal exercise. METHODS This is a comparative observational study. Participants were 46 women with ages between 25 and 45 years, who were divided into two groups: 23 individuals with vocal complaint (VCG), and 23 without vocal complaint (WVCG). The procedures included vocal auditory-perceptual analysis, acoustic analysis...

BACKGROUND Total Laryngectomy is a mode of treatment of patients with advanced laryngeal cancer. It affects the voice and the speech communication. OBJECTIVE To present an acoustic analysis of the new voice after total laryngectomy in Algerian hospital environment. METHODS A corpus of sounds was collected from October 2008 to September 2009 and pronounced by eight male speakers who have und...

OBJECTIVES This study investigated whether there were differences in the acoustic measures of fundamental frequency (Fo), jitter, intensity, and shimmer of older amateur singers and nonsingers and whether there were significant correlations between these acoustic measurements and listener judgments of speaker age. METHODS Acoustic measurements were obtained on 60 speaker participants from a s...

There are several softwares which have their normative values like MDVP, Dr Speech, and Vaghmi. The present study aims to establish a normative data for PRAAT software in the age range of 5-10 yrs. for Indian population. Two hundred and fifty children (between the age ranges of 5-10 years) participated in the study. Voice samples were elicited by asking each participant to produce sustained pho...

OBJECTIVES The objectives of this study are to evaluate the impact on voice of both duration and intensity level of 2 hours of continuous oral reading. Voice modifications accompanying changes in intensity level during prolonged reading tasks are analyzed. METHODS Fifty normophonic women undergo two sessions of voice loading in which the required intensity level of voice varied between 60-65 ...

PURPOSE Many studies have shown that subjects show a change of vocal fundamental frequency (F0) when phonating subjects hear their vocal pitch feedback shifted upward or downward. This study was performed to demonstrate whether vocal parameters [F0, intensity, jitter, shimmer, and noise to harmonic ratio (NHR)] in normal males respond to changes in frequency of pure tone masking. MATERIALS AN...