Japanese formant frequencies in mobile phone transmission: Implications for Forensic Voice Comparison

Michael Carne

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Abstract

    Mobile phones are now widely preferred over fixed-line telephones for global communications, and this includes their use to conduct criminal activities. This paper describes an experiment investigating the impact of mobile phones transmission on vowel formant frequencies (F1-F3) in Japanese. This is assessed in terms of the direction and size of frequency shifts associated with spectral distortionand discusses some of the implications this has for Forensic Voice Comparison (FVC). Results show F2 and low F3, typically well preserved over fixed-line transmission, frequently exhibit substantial and highly variable discrepancies between microphone and mobile recordings. Although F1 is found to be comparatively well preserved, these findings are of major concern to FVC given the usefulness of F2 and F3 as acoustic parameters in speaker discrimination.
    Original languageEnglish
    Title of host publicationQuantitative approaches to problems in linguistics: Studies in honour of Phil Rose
    Editors Cathryn Donohue, Shunichi Ishihara and William Steed
    Place of PublicationMunich, Germany
    PublisherLincom Europa
    Pages171-184
    Edition1st
    ISBN (Print)9783862883844
    DOIs
    Publication statusPublished - 2012

    Fingerprint Dive into the research topics of 'Japanese formant frequencies in mobile phone transmission: Implications for Forensic Voice Comparison'. Together they form a unique fingerprint.

    Cite this