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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 ...
Variations of Jitter and Shimmer Among Women in Menacme and Postmenopausal Women
(MOSBY-ELSEVIER, 2009)
The objective of the study was to analyze comparatively the jitter and shimmer values of spoken voice among women in menacme and menopausal women using or not hormonal replacement therapy (HRT). Forty-five women were ...
VoIP jitter in 3GPP long term evolution networks
(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2009-12-01)
3GPP LTE is the next step towards 4G mobile communications with performance comparable to wire-line networks. Careful planning and design must be carried out to assure a successful deployment for both, users and network ...
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. ...
Comparison of Two Perceptual Methods for the Evaluation of Vowel Perturbation Produced by Jitter
(Mosby-Elsevier, 2016-07)
Objectives: To explore perceptual evaluation of jitter produced by fundamental frequency (F0) variation in a sustained vowel /a/, using two different methods. One is based on listener's internal references and the other ...
Evaluation of the voice quality and QoS in real calls using different voice over IP codecs
(Institute of Electrical and Electronics Engineers Inc., 2018)
To have an excellent voice quality in VoIP networks implies to generate studies based on the perception of the user and on the QoS analysis in the calls. In this research, it was carried out the assessment of the voice ...
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 ...
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 ...