Exploring the discriminatory potential of F0 distribution parameters in traditional forensic speaker recognition
-
Altmetric Citations
Kinoshita, Yuko; Ishihara, Shunichi; Rose, Philip
Description
Despite its many prima facie attractive properties for forensic speaker recognition, F0 is regarded as having limited forensic value due to its large within-speaker variability. However, its forensic use to date has been limited mostly to its long-term mean and standard deviation. This paper examines the discriminatory potential, within a Likeli-hood Ratio-based approach, of additional parametric features from the distribution of long-term Fo: its skew, kurtosis, modal F0 and modal density....[Show more]
dc.contributor.author | Kinoshita, Yuko | |
---|---|---|
dc.contributor.author | Ishihara, Shunichi | |
dc.contributor.author | Rose, Philip | |
dc.date.accessioned | 2015-12-10T22:30:56Z | |
dc.identifier.issn | 1748-8893 | |
dc.identifier.uri | http://hdl.handle.net/1885/55307 | |
dc.description.abstract | Despite its many prima facie attractive properties for forensic speaker recognition, F0 is regarded as having limited forensic value due to its large within-speaker variability. However, its forensic use to date has been limited mostly to its long-term mean and standard deviation. This paper examines the discriminatory potential, within a Likeli-hood Ratio-based approach, of additional parametric features from the distribution of long-term Fo: its skew, kurtosis, modal F0 and modal density. Motivated by the observation that the shape of the long-term F0 distribution shows less within-speaker occasion-to-occasion difference, we report a forensic discrimination experiment with non-contemporaneous speech samples from 201 male Japanese speakers. Using a multivariate Likelihood Ratio as discriminant distance with the six LTF0 distribution parameters, an equal error rate of 10.7% is obtained from 201 target and 80400 non-target trials. We also investigate how the EER degrades as a function of amount of voiced speech. | |
dc.publisher | Equinox Publishing Ltd | |
dc.source | The International Journal of Speech, Language and the Law | |
dc.subject | Keywords: Duration; Fo; Forensic speaker recognition; Japanese; Likelihood ratio; Multivariate likelihood ratio; Non-contemporaneous recordings; Spontaneous speech; Univariate likelihood ratio | |
dc.title | Exploring the discriminatory potential of F0 distribution parameters in traditional forensic speaker recognition | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 16 | |
dc.date.issued | 2009 | |
local.identifier.absfor | 200404 - Laboratory Phonetics and Speech Science | |
local.identifier.ariespublication | u9803255xPUB324 | |
local.type.status | Published Version | |
local.contributor.affiliation | Kinoshita, Yuko, University of Canberra | |
local.contributor.affiliation | Ishihara, Shunichi, College of Asia and the Pacific, ANU | |
local.contributor.affiliation | Rose, Philip, College of Arts and Social Sciences, ANU | |
local.description.embargo | 2037-12-31 | |
local.bibliographicCitation.issue | 1 | |
local.bibliographicCitation.startpage | 91 | |
local.bibliographicCitation.lastpage | 111 | |
local.identifier.doi | 10.1558/ijsll.v16i1.91 | |
dc.date.updated | 2016-02-24T12:12:11Z | |
local.identifier.scopusID | 2-s2.0-70349732908 | |
local.identifier.thomsonID | 000271741600004 | |
Collections | ANU Research Publications |
Download
File | Description | Size | Format | Image |
---|---|---|---|---|
01_Kinoshita_Exploring_the_discriminatory_2009.pdf | 738.55 kB | Adobe PDF | Request a copy |
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.
Updated: 17 November 2022/ Responsible Officer: University Librarian/ Page Contact: Library Systems & Web Coordinator