Speaker-individuality in Fujisaki model f0 features:implications for forensic voice comparison

Leemann, Adrian and Mixdorff, Hansjörg and O'Reilly, Maria and Kolly, Marie-José and Dellwo, Volker (2014) Speaker-individuality in Fujisaki model f0 features:implications for forensic voice comparison. International Journal of Speech, Language and the Law, 21 (2). pp. 343-370. ISSN 1748-8885

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Abstract

Fundamental frequency (f0) is a highly speaker-specific feature. Consequently, practitioners often use f0 information in forensic casework. Current research principally examines the use of long-term f0 statistics such as f0 means and standard deviations for forensic voice comparison. The present study investigates how short-term f0 features such as measured by the Fujisaki intonation model capture speaker-individuality. Based on data of a homogeneous group of Zurich German speakers, we conducted an experiment on a large corpus of read speech and on a subset of sentences that included speaking style variability (spontaneous vs. read). The latter is characteristic of forensic casework. Speakers demonstrated high between-speaker variability and low within-speaker variability across the two speaking styles for a number of f0 features. Given this evidence of speaker-individuality, we discuss Fujisaki f0 features’ potential for forensic voice comparison.

Item Type:
Journal Article
Journal or Publication Title:
International Journal of Speech, Language and the Law
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3300/3310
Subjects:
ID Code:
83914
Deposited By:
Deposited On:
10 Jan 2017 14:48
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 10:09