Deviating from one's own speech: implications for speaker verification for speakers and non-speakers of Brazilian Portuguese

• Grant number: 12/10909-3
• Support Opportunities: Scholarships abroad - Research Internship - Scientific Initiation
• Start date: August 30, 2012
• End date: September 29, 2012
• Field of knowledge: Linguistics, Literature and Arts - Linguistics - Linguistic Theory and Analysis
• Principal Investigator: Plinio Almeida Barbosa
• Grantee: Renata Regina Passetti
• Supervisor: Anders Eriksson
• Host Institution: Instituto de Estudos da Linguagem (IEL). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Institution abroad: University of Gothenburg, Sweden
• Associated to the scholarship: 11/23054-3 - Deviating from one`s own speech: implications for speaker verification in voice disguise situations, BP.IC

Abstract

This research will analyze the perceptual strategies used by Sweden listeners and Brazilian listeners who live in Sweden for speaker verification in Brazilian Portuguese speech samples in a vocal disguise situation.Samples of Brazilian Portuguese speech will be presented to the two groups of listeners with one vocal disguise followed by a line-up with the target non-modified voice randomly arranged with other five foils non-modified voices. The focus of the work is threefold: to evaluate the identification rate, to determine which type of information (acoustic and/or lexical) is used by the listeners during the speaker verification task and to make some considerations about the role of the acoustic memory in speakers and non-speakers of Brazilian Portuguese.It is known that the analysis of the perceptual strategies of native and non-native listeners has important implications for speaker verification since it allows a better understanding of the cognitive processes involved in cases of earwitness. (AU)