Nonlinear modelling of double and triple period pitch breaks in vocal fold vibration.
Logoped Phoniatr Vocol
; 31(1): 36-42, 2006.
Article
en En
| MEDLINE
| ID: mdl-16517521
ABSTRACT
This paper reports a study on short-time subharmonic pitch breaks in vocal fold vibration, which are found to be a common feature of the human voice in spoken language. The observed pitch breaks correspond to a change in periodicity of the electrolaryngograph (Lx) signal. This paper presents a nonlinear dynamical system capable of producing time-series with subharmonic pitch breaks. The resulting time-series resemble closely Lx recordings of natural speech. The system is developed on the basis of a second order linear system, which is extended with a third dimension and nonlinear coupling terms. It is suggested that improved knowledge about pitch breaks could be used in future speech synthesis systems in order to improve the naturalness of the perceived output.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Fonación
/
Vibración
/
Pliegues Vocales
/
Voz
/
Dinámicas no Lineales
Tipo de estudio:
Prognostic_studies
Límite:
Female
/
Humans
/
Male
Idioma:
En
Revista:
Logoped Phoniatr Vocol
Asunto de la revista:
PATOLOGIA DA FALA E LINGUAGEM
Año:
2006
Tipo del documento:
Article
País de afiliación:
Suiza