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Updated: May 30, 2026

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Published on: April 13, 2016
Vibrato and tremor extent spectrum: algorithm and applications
Maurílio N Vieira1, José Eduardo de C Silva, Hani C Yehia
1Departamento de Física, Universidade Federal de Minas Gerais, Caixa Postal 702, CEP 30.123-970, Belo Horizonte, MG, Brazil. maurilio@fisica.ufmg.br
Abstract:
This work investigated the measurement of vibrato and tremor extent values. Related works have not explored the possibility of measuring extent in the spectra of fundamental frequency (f(0)) low-frequency undulations. It is shown here that by canceling average (DC) values and baseline drifts of f(0) contours, as well as weighting the respective spectra by the time window DC value, extent measures can be promptly obtained in the frequency domain. The method is illustrated with measurements from synthetic and human data.
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