Background: To investigate the value of standard deviation fundamental frequency (F0 SD), jitter, and shimmer for evaluation voice quality description vocal characteristics in patients with disorders.

MOTIVATION Extensive DNA sequencing of tumor and matched normal samples using exome and whole-genome sequencing technologies has enabled the discovery of recurrent genetic alterations in cancer cells, but variability in stromal contamination and subclonal heterogeneity still present a severe challenge to available detection algorithms. RESULTS Here, we describe publicly available software, Sh...

This study investigated the effect of Neuromuscular Electrical Stimulation (NMES) on the loudness, pitch and quality of the voice of the males diagnosed with dysphagia by stroke. NMES was conducted on experimental group of 15 patients for 2 month repeatedly while compensatory strategies for dysphagia were performed on control group of 15 patients. As the result of analysis of covariance (ANCOVA...

Jitter and shimmer are measures of the fundamental frequency and amplitude cycle-to-cycle variations, respectively. Both features have been largely used for the description of pathological voices, and since they characterise some aspects concerning particular voices, they are expected to have a certain degree of speaker specificity. In the current work, jitter and shimmer are successfully used ...

Monitoring certain features of a structure over time and evaluating these features to determine the health of a structure is referred to as Structural Health Monitoring (SHM). SHiMmer, a solar-powered wireless SHM system, monitors a structure, processes the results, and transmits the data to an external device. In this paper, we examine the components of SHiMmer and reveal both its capabilities...

OBJECTIVE In this study, a Voice over Internet Protocol (VoIP) communication based on G.729 protocol was simulated to determine the effects of this system on acoustic perturbation parameters of normal and pathological voice signals. PATIENTS AND METHODS Fifty recordings of normal voice and 48 recordings of pathological voice affected by laryngeal paralysis were transmitted through a VoIP comm...

OBJECTIVE We aim to examine the abilities of objective acoustic analysis methods (nonlinear dynamic and traditional perturbation measures) to describe voices from individuals with vocal nodules and polyps. SUBJECTS AND METHODS Sustained vowel recordings from normal subjects, patients with vocal nodules, and patients with vocal polyps were analyzed. Perturbation measures of jitter and shimmer ...

Laryngeal disorders are very uncomfortable and unbearable due to the continuous use of the human voice. However,the better identification of laryngeal disorders always is necessary. Recently, a lot of researchers such as doctors and biomedical engineers directed to the non-invasive and easier methods to detect disorders. The advantage of this method compared with invasive methods, are its toler...

Background & Aims: Previous studies have indicated significant differences in vocal parameters between children with Down syndrome and normal children, but there are challenges about these differences. In this study vocal parameters and Maximum Phonation Time (MPT) in adults with Down syndrome have been investigated. Method: This cross-sectional and analytic study was performed on 22 adults wit...