Audiology - Communication Research
https://www.audiolcommres.org.br/article/doi/10.1590/2317-6431-2025-3100pt
Audiology - Communication Research
Original Article

Medidas cepstrais: análise dos resultados após programa integral de reabilitação vocal associado à eletroterapia

Cepstral measurements: analysis of results after the comprehensive vocal rehabilitation program associated with electrotherapy

Aline Pereira Santos Marques; Jéssica Nazareno; Bárbara Pereira Lopes; Ana Cristina Côrtes Gama

http://dx.doi.org/10.1590/2317-6431-2025-3100pt Audiol. Commun. Res., vol.31, e3100, 2026
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Resumo

Objetivo: avaliar o efeito da terapia fonoaudiológica com o Programa Integral de Reabilitação Vocal (PIRV) associado à estimulação elétrica nervosa transcutânea (TENS) em cantoras populares com queixas vocais, utilizando as medidas cepstrais Cepstral Peak Prominence (CPP), Cepstral Peak Prominence-Smoothed (CPPS) e avaliação perceptivo-auditiva da voz.

Métodos: estudo experimental com 30 cantoras populares, amadoras e profissionais, com queixas vocais. Foram realizadas avaliações acústicas e perceptivo-auditivas antes e depois de seis semanas de intervenção, que incluíram exercícios do PIRV combinados com TENS. As amostras vocais foram submetidas à extração das medidas CPP e CPPS por meio do software Praat.

Resultados: houve aumento significativo das medidas de CPP e CPPS após a fonoterapia, indicando melhora na periodicidade e redução dos ruídos vocais. A análise perceptivo-auditiva também revelou melhora significativa na qualidade vocal, com redução no grau de desvio vocal.

Conclusão: a terapia combinada de PIRV e TENS proporcionou melhora significativa na qualidade vocal de cantoras com queixas vocais, evidenciada pelo aumento das medidas cepstrais e pela avaliação perceptivo-auditiva.

Palavras-chave

Voz; Qualidade da voz; Canto; Fonoterapia; Distúrbios da voz; Estimulação elétrica nervosa transcutânea; Acústica da fala

Abstract

Purpose: To evaluate the effect of speech-language-hearing therapy using the Comprehensive Vocal Rehabilitation Program (CVRP) combined with transcutaneous electrical nerve stimulation (TENS) in female pop singers with vocal complaints, using cepstral measures (CPP and CPPs) and auditory-perceptual evaluation of voice.

Methods: This experimental study included 30 pop singers, both amateur and professional, with vocal complaints. Acoustic and perceptual-auditory assessments were conducted before and after six weeks of intervention, which involved CVRP exercises combined with TENS. Voice samples were analyzed using Praat software to measure CPP and CPPs.

Results: CPP and CPPs measures increased significantly after therapy, indicating improved periodicity and reduced vocal noise. The auditory-perceptual evaluation also indicated significantly improved vocal quality, with reduced hoarseness.

Conclusion: The combined therapy with CVRP and TENS significantly improved the vocal quality of singers with vocal complaints, confirmed by increases in cepstral measures and auditory-perceptual evaluation.

Keywords

Voice; Voice quality; Singing; Speech therapy; Voice disorders; Transcutaneous electrical nerve stimulation; Speech acoustics

References

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Submitted date:
09/03/2025

Accepted date:
12/27/2025

69c6b67ea953953147683072 acr Articles
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