Does the Combination of Glottal and Supraglottic Acoustic Measures Improve Discrimination Between Women With and Without Voice Disorders?

Aim: To analyze the accuracy of traditional acoustic measurements (F0, perturbation, and noise) and formant measurements in discriminating between women with and without voice disorders, and with different laryngeal disorders.

Study Design: A descriptive, cross-sectional, and retrospective.

Method: Two hundred and sixty women participated.

Cepstral measures in the assessment of severity of voice disorders.

Purpose: To analyze whether there is an association between the presence, intensity and type of voice disorder and the cepstral measures in samples of individuals with voice complaints.

Methods: We used 376 vowel /Ɛ/ samples from individuals of both genders that had voice complaints. An analogue-visual scale was used for the auditory-perceptual analysis of voices regarding the overall grade of dysphonia (G) and the grades of roughness (R), breathiness (B), and strain (S), including a determination of voice quality (rough, breathy or strained).

Accuracy of traditional and formant acoustic measurements in the evaluation of vocal quality.

Purpose: Investigate the accuracy of isolated and combined acoustic measurements in the discrimination of voice deviation intensity (GD) and predominant voice quality (PVQ) in patients with dysphonia.

Methods: A total of 302 female patients with voice complaints participated in the study. The sustained /ɛ/ vowel was used to extract the following acoustic measures: mean and standard deviation (SD) of fundamental frequency (F0), jitter, shimmer, glottal to noise excitation (GNE) ratio and the mean of the first three formants (F1, F2, and F3).

Effectiveness of Recurrence Quantification Measures in Discriminating Subjects With and Without Voice Disorders.

The objective of this study was to analyze the accuracy of recurrence quantification measurements (RQMs) in discriminating between individuals with and without voice disorders. This study consisted of a total of 541 recorded voice samples from normal and dysphonic subjects. All subjects recorded a sustained vowel /Ɛ/ and underwent a laryngoscopic examination of the larynx.

Accuracy of Acoustic Analysis Measurements in the Evaluation of Patients With Different Laryngeal Diagnoses.

Objective: This study aims to investigate the accuracy of acoustic measures in discriminating between patients with different laryngeal diagnoses.

Study Design: The study design is descriptive, cross-sectional, and retrospective.

Methods: A total of 279 female patients participated in the research.

Acoustic assessment of the voices of children using nonlinear analysis: proposal for assessment and vocal monitoring.

Objective: To analyze the accuracy of recurrence measurements, both isolated and combined, to assess the intensity of vocal disorders in children.

Method: A total of 93 children of both sexes (48 girls and 45 boys), aged between 3 and 10 years, participated. The vocal-deviation intensity was evaluated by the consensus of three speech therapists from the pronunciation of vowel /ε/ using the visual analog scale.