Typicality and voice quality: methodological considerations on the control of sociolinguistic, phonetic, and voice criteria
Forensic-phonetic casework, based on a Bayesian framework, estimates the strength-of-evidence by evaluating the ratio between the similarity and typicality of the speech samples being compared. Typicality refers to the rarity of a linguistic event. Its calculation involves accessing speech data repr...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | Brasil |
| Institución: | Universidade Estadual de Campinas (UNICAMP) |
| Repositorio: | Cadernos de Estudos Linguísticos |
| Idioma: | portugués |
| OAI Identifier: | oai:ojs.periodicos.sbu.unicamp.br:article/8675468 |
| Acceso en línea: | https://periodicos.sbu.unicamp.br/ojs/index.php/cel/article/view/8675468 |
| Access Level: | acceso abierto |
| Palabra clave: | Forensic Phonetics Voice quality Typicality Fonética Forense Qualidade de voz Tipicidade Calidad de voz Tipicidad |
| Sumario: | Forensic-phonetic casework, based on a Bayesian framework, estimates the strength-of-evidence by evaluating the ratio between the similarity and typicality of the speech samples being compared. Typicality refers to the rarity of a linguistic event. Its calculation involves accessing speech data representative of the relevant population to which the criminal and suspects are presumed to belong. In addition to promoting efforts to develop and/or select these databases, it is also necessary to address methodological issues that allow the representation and selection of the social and linguistic features under analysis. This paper aims to present and discuss sociolinguistic, phonetic, and voice-related criteria for the development of speech databases and/or the selection of samples extracted from speech databases for evaluating the typicality of acoustic and auditory correlates of voice quality. The emphasis on voice quality is grounded in its indexical nature, practical relevance to forensic casework, and the specificity required for building relevant populations. |
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