Memorias de investigación
Artículos en revistas:
Evaluating the forensic importance of glottal source features through the voice analysis of twins and non-twin siblings
Año:2015
Áreas de investigación
  • Lingüística computacional
Datos
Descripción
In this study we have analyzed 853 tokens of the vowel ?ller [e:], extracted from spontaneous speech fragments of 54 male Spanish speakers (North- Central Peninsular variety), each one recorded on two separate sessions. The speakers ? to be compared in a pairwise fashion ? were divided in four groups: 24 monozygotic (MZ) twins, 10 dizygotic (DZ) twins, 8 non-twin brothers and 12 unrelated speakers. From the extracted vowel ?llers, considered long enough for a glottal analysis (around 160 milliseconds), a vector of 68 glottal parameters was created. Our hypothesis that higher similarity values would be found in the intra-pair comparison of MZ twins than in DZ twins, brothers or unrelated speakers was con?rmed, which suggests that the glottal parameters under investigation are genetically in?uenced. This ?nding seems of great forensic importance, as a phonetic parameter is considered forensically robust provided that it exhibits large between-speaker variation while it remains as consistent as possible for each speaker (i.e. small within-speaker variation).
Internacional
Si
JCR del ISI
Si
Título de la revista
Language and Law
ISSN
2183-3745
Factor de impacto JCR
Información de impacto
Volumen
1
DOI
Número de revista
2
Desde la página
22
Hasta la página
41
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SIN MES
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Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Informática Aplicada al Procesado de Señal e Imagen
  • Departamento: Arquitectura y Tecnología de Sistemas Informáticos