Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Using Dysphonic Voice to Characterize Speaker's Biometry
Year:2015
Research Areas
  • Computational linguistics
Information
Abstract
Phonation distortion leaves relevant marks in a speaker's biometric pro?le. Dysphonic voice production may be used for biometrical speaker characterization. In the present paper phonation features derived from the glottal source (GS) parameterization, after vocal tract inversion, is proposed for dysphonic voice characterization in Speaker Veri?cation tasks. The glottal source derived parameters are matched in a forensic evaluation framework de?ning a distance-based metric speci?cation. The phonation segments used in the study are derived from ?llers, long vowels, and other phonation segments produced in spontaneous telephone conversations. Phonated segments from a telephonic database of 100 male Spanish native speakers are combined in a 10-fold cross-validation task to produce the set of quality measurements outlined in the paper. Shimmer, mucosal wave correlate, vocal fold cover biomechanical parameter unbalance and a subset of the GS cepstral pro?le produce accuracy rates as high as 99.57 for a wide threshold interval (62.08-75.04%). An Equal Error Rate of 0.64 % can be granted. The proposed metric framework is shown to behave more fairly than classical likelihood ratios in supporting the hypothesis of the defense vs that of the prosecution, thus o?ering a more reliable evaluation scoring. Possible applications are Speaker Veri?cation and Dysphonic Voice Grading.
International
Si
JCR
Si
Title
Language and Law
ISBN
2183-3745
Impact factor JCR
Impact info
Volume
1
Journal number
2
From page
42
To page
66
Month
SIN MES
Ranking
Participants
  • Autor: Pedro Gomez Vilda (UPM)
  • Autor: Eugenia San Segundo (University of York)
  • Autor: Luis Miguel Mazaira Fernández (Independiente)
  • Autor: Agustin Alvarez Marquina (UPM)
  • Autor: M. Victoria Rodellar Biarge (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Informática Aplicada al Procesado de Señal e Imagen
  • Departamento: Arquitectura y Tecnología de Sistemas Informáticos
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)