Cepstral peak prominence: a more reliable measure of dysphonia.
Ann Otol Rhinol Laryngol
; 112(4): 324-33, 2003 Apr.
Article
en En
| MEDLINE
| ID: mdl-12731627
Quantification of perceptual voice characteristics allows the assessment of voice changes. Acoustic measures of jitter, shimmer, and noise-to-harmonic ratio (NHR) are often unreliable. Measures of cepstral peak prominence (CPP) may be more reliable predictors of dysphonia. Trained listeners analyzed voice samples from 281 patients. The NHR, amplitude perturbation quotient, smoothed pitch perturbation quotient, percent jitter, and CPP were obtained from sustained vowel phonation, and the CPP was obtained from running speech. For the first time, normal and abnormal values of CPP were defined, and they were compared with other acoustic measures used to predict dysphonia. The CPP for running speech is a good predictor and a more reliable measure of dysphonia than are acoustic measures of jitter, shimmer, and NHR.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Acústica del Lenguaje
/
Trastornos de la Voz
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
Límite:
Aged
/
Aged80
/
Child
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Ann Otol Rhinol Laryngol
Año:
2003
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Estados Unidos