Corpus: Voice Quality for Forensic Speaker Comparison

The most frequent way in which criminals disguise their voices implies changes in phonation types, but it is difficult to maintain them for a long time. This mechanism severely hampers identification. Currently, the CIVIL corpus comprises 60 Spanish speakers. Each subject performs three tasks: spontaneous conversation, carrier sentences and reading, using modal, falsetto and creak(y) phonation. Two different recording sessions, one month apart, were conducted for each speaker, who was recorded with microphone, telephone and electroglottography. This is the first (open-access) corpus of disguised voices in Spanish. Its main purpose is finding biometric traces that remain in voice despite disguiseThis research has been made possible by grants awarded by the Spanish Ministry of Science and Innovation (FFI10-21690/Cualidad de voz), Spanish Ministry of Education (Beca FPU Programa Nacional de Formación de Profesorado Universitario, BOE 11-07-2009) and the Spanish National Research Council- CSIC (Jae-Predoctoral- Junta para la Ampliación de Estudios, BOE 03-06-2011). Thank you very much also to all the colleagues in the Laboratory of Phonetics (CSIC) directed by Juana Gil.Peer Reviewe