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Voice Jitter Estimation Using High-Order Synchrosqueezing Operators
(Institute of Electrical and Electronics Engineers, 2020-12)
Voice jitter is defined as a random perturbation of the glottal cycle duration which can be useful for voice parametrization and that usually depends on finding fiducial points in this signal. In this paper, a novel ...
Aportes al análisis de perturbaciones desde el aprendizaje maquinal y el análisis tiempo-frecuencia
(2021-09-10)
Las perturbaciones en la señal de la voz son pequeñas modificaciones de corto plazo en parámetros de la señal, cuya cuantificación resulta de importancia para el diagnóstico de patologías laríngeas, nerviosas o respiratorias. ...
Voz e audição de idosos: avaliação clínica e autoperceptiva
(Universidade Federal de São Paulo (UNIFESP), 2020-02-06)
Objective: Study self-perception, voice and hearing clinical of elderly people. Method: 198 elderly people with ages equal or superior to 60 years with preserved cognition, with no laryngeal, neurological or psychiatric ...
Diagrama de desvio fonatório na clínica vocal
(Universidade Federal de São Paulo (UNIFESP), 2009-02-18)
Purpose: To identify which characteristics discriminates the hoarseness diagram of adult voices that are predominantly adapted, rough, breathy and strained. Method: 196 adult voice samples of the sustained vowel “ae” were ...
State-Space Approach to Structural Representation of Perturbed Pitch Period Sequences in Voice Signals
(Mosby-Elsevier, 2015-11)
Objectives: The aim of this study was to propose a state space-based approach to model perturbed pitch period sequences (PPSs), extracted from real sustained vowels, combining the principal features of disturbed real PPSs ...
Influencia do tabagismo isolado e associado a aspectos multifatoriais nos parametros acusticos vocaisInfluence of smoking isolated and associated to multifactorial aspects in vocal acoustic parameters
(Associação Brasileira de Otorrinolaringologia e Cirurgia Cervicofacial, 2014)
Medida da relação harmônico/ruído em vozes disfônicas pelo processamento digital de imagens espectrográficas
(Universidade Federal de Minas GeraisUFMG, 2009-06-09)
This work presents the S2NR, Spectrographic Signal-to-Noise Ratio, a signal-to-noise ratio measurement obtained from the processing of vowel spectrograms by using adaptations of fingerprint image enhancement algorithms. ...
Immediate Effect Of Surface Laryngeal Hydration Associated With Tongue Trill Technique In Amateur SingersEfeito imediato da hidratação laríngea de superfície associada à técnica de vibração sonorizada de língua em cantores amadores
(2021-01-01)
Purpose: To analyze the immediate effect of laryngeal surface hydration associated with the performance of Tongue Trills (TT) on singers. Methods: Thirty singers without vocal complaints or laryngeal alterations divided ...
Autoregressive decomposition and pole tracking applied to vocal fold nodule signals
(2007-08-01)
This letter describes a novel algorithm that is based on autoregressive decomposition and pole tracking used to recognize two patterns of speech data: normal voice and disphonic voice caused by nodules. The presented method ...