Validation of the Arabic version of vocal tract discomfort scale.

To explore the internal consistency, criterion validity, and discriminative validity of the Arabic version of the vocal tract discomfort scale (VTDS-Arab); and to establish cut-off scores for the VTDS-Arab. An overall of 202 participants (31 patients with voice disorders of organic and functional causes, and 171 healthy subjects, mean age 25.3 ± 6.

A study of VHI scores and acoustic features in street vendors as occupational voice users.

Purpose: to investigate acoustic features of phonation and perception of voice handicap in street vendors.

Methods: Eighty-eight participants (44 street vendors, 44 controls) were recruited. The mean age of the group was 38.

Applicability of the Arabic version of Vocal Tract Discomfort Scale (VTDS) with student singers as professional voice users.

Aim: This pilot study aimed to evaluate the internal consistency, convergent construct validity and criterion validity of Arabic version of the Vocal Tract Discomfort Scale (VTDS), and to investigate the correlation between the scores of the VTDS, the VHI and the acoustic measures of fundamental frequency (F0), shimmer, jitter and signal-to-noise ratio (SNR).

Methodology: A cross-sectional study where 97 participants participated (47 males and 50 females) (mean age 20.5 ± 2.

Kuwaiti Teachers' Perceptions of Voice Handicap.

Objectives: The study aimed to investigate the effects of age, gender, level of education, experience, and class level taught on the perception of voice handicap by Kuwaiti teachers using the Arabic version of the Voice Handicap Index (VHI-Arab). The mean VHI scores of Kuwaiti teachers were compared with those of Jordanian and Emirati teachers.

Methods: The study had a cross-sectional survey design.

Emirati Teachers' Perceptions of Voice Handicap.

Objectives: The purpose of the study was to explore Emirati teachers' perceptions of voice handicap and to analyze their acoustic characteristics to determine whether acoustic measures of teachers' voice would verify their perceptions of voice handicap.

Methods: Sixty-six Emirati school teachers (33 men and 33 women), with different years of teaching experience and age, and 100 control participants (50 men and 50 women) underwent vocal assessment that included the Voice Handicap Index (VHI-Arab) and acoustic measures (F0, jitter%, shimmer%, signal to noise ratio [SNR]).

Results: Significant differences between the teachers' group scores and the control group scores on the following subscales of VHI-Arab: physical (P = 0.

Jordanian teachers' perceptions of voice handicap.

This study aimed to investigate if Jordanian school teachers perceive their voice as handicapped using the Voice Handicap Index (VHI)-Arab. The effect of teachers' age, gender, years of teaching, class taught, and education level on VHI was examined. A total of 289 teachers and a control group of 100 participants took part in the study.

Formant frequency characteristics in normal Arabic-speaking Jordanians.

This study is designed to test the acoustic characteristics of the normal Arabic voice. The subjects were 300 normal Arabic speakers (100 adult males, 100 adult females, and 100 children). The subjects produced a sustained phonation of the six steady state Arabic vowels (/i:/, /e:/, /a:/, , /o:/, and /u:/).

Standardization of the Arabic version of the Voice Handicap Index: an investigation of validity and reliability.

Validity and reliability of the Arabic version of the VHI (VHI-Arab) were investigated. Possible effects of participant-inherent factors (i.e.

Fundamental frequency characteristics of Jordanian Arabic speakers.

This study is the first in a series of investigations designed to test the acoustic characteristics of the normal Arabic voice. The subjects were three hundred normal Jordanian Arabic speakers (100 adult males, 100 adult females, and 100 children). The subjects produced a sustained phonation of the vowel /a:/ and stated their complete names (i.

The performance of the time-frequency analysis software (TF32) in the acoustic analysis of the synthesized pathological voice.

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 perceptual characteristics of breathiness, roughness, and hoarseness) were evaluated using its analysis output to five female and five male synthesized voices. TF32 was used to calculate F0, Jitter%, Shimmer%, and SNR for each of the synthesized signals.