Toby Hudson

Learn More
DyViS is a forensic phonetics research project which investigates dynamic variability in speech from two perspectives: firstly, the use of dynamic (time-varying) properties of the speech signal for characterising speakers, especially formant dynamics; and secondly, the speaker-distinguishing potential of phonological variability due to sound change. In(More)
This paper presents statistical data for the fundamental frequency of 100 young male speakers of Standard Southern British English producing spontaneous speech under cognitive stress. The material comes from the new DyViS database, for which subjects underwent a simulated police interview. The distribution of F0 in a large homogeneous group of speakers is(More)
The effect of telephone transmission on a listener's ability to recognise a speaker in a voice parade is investigated. A hundred listeners (25 per condition) heard 1 of 5 'target' voices, then returned a week later for a voice parade. The 4 conditions were: target exposure and parade both at studio quality; exposure and parade both at telephone quality;(More)
This research examines the inter-analyst robustness of formant frequency (F) measurements and presents some proposals for agreeing a procedure for the extraction of F values. Harrison (2004) outlines a number of the issues which need to be taken into account in extracting F values using currently available software tools. These include the settings used to(More)
  • 1