How context affects perception: judging distress & linguistic content in forensic audio recordings
DOI:
https://doi.org/10.36505/ExLing-2010/03/0039/000159Keywords:
perception, distress, forensic, context, linguistic contentAbstract
In order to assess the role of context on the perception of speech sounds, extracts of speech material from authentic forensic cases were played to two groups of listeners (experienced vs inexperienced forensic phoneticians) in two conditions (with and without sequential context). Listeners were asked to categorise each extract according to a four-way scale of perceptible distress and rate each extract according to a five-point scale of perceptible linguistic content. Findings show that extracts played without context are perceived as reflecting higher degrees of distress and lower levels of linguistic content. Experienced phoneticians performed more consistently as a group and were less prone to changing their responses across the two conditions.
References
Fraser, H. 2003. Issues in transcription: Factors affecting the reliability of transcripts as evidence in legal cases. International Journal of Speech Language and the Law, 10(2), 203-226.
Hirson, A., & Howard, D.M. 1994. Spectrographic analysis of a cockpit voice recorder tape. Forensic Linguistics, 1(1), 59–69.
International Association for Forensic Phonetics and Acoustics. (n.d.). Code of Practice – Section 9. (Accessed March 30, 2009).
Jefferson, G. 1978. What’s in a ‘nyem’? Sociology, 12(1), 135-139.
Rose, P. 2009. Evaluation of disputed utterance evidence in the matter of David Bain’s retrial. Report prepared for court case, 23 February 2009. (Accessed March 25, 2010 from http://forensic-voice-comparison.net/publications.html).
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Copyright (c) 2010 Lisa Roberts (Author)

This work is licensed under a Creative Commons Attribution 4.0 International License.
Articles are published under the Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.