Forensic Linguistics Assignment Essay -- Forensic Science

Speech analysis has a type called the voice mental strain analysis that detects stress in the form of micro tremors in the speech of a person. It is important to note that the voice stress analysis is equivalent to polygraph. Both polygraph and stress devote a common problem of not being able to point out deception. This notwithstanding, the speech analysis is apparently being used by twain the Federal Bureau of Investigations and the Central Intelligence Agency of the United States. The fact that each and every person possesses a unique voiceprint makes the identification of a talker system to be theoretically possible. This can be achieved through acoustical analysis of the intonation counters, pitch and vowel length. When the pairs of the spectrographs that show the suspect speaker and the known speaker uttering similar words are matched, the speaker can be easily identified (Olsson 2004, p. 71). The fact that voice stress analysis relies on eye affinity is a big problem. Ano ther problem involves the variation that occurs in the same speaker. It is reported that the uttering of the same sentence a hundred times in bustling succession does not produce any two identical uttering. Some countries like the United Kingdom, however, prefer auditory analysis as opposed to the acoustic method. In auditory analysis, the speech samples are phonetically transcribed. This analysis is important as it allows the analysts to identify such features that are idiosyncratic like the speech impediments and the different realization of phonemes. Besides, the analysts might find the need to profile the social and regional identity of the speaker. Speech analysis nowadays accepts the mixed method as the close accurate and reliable. It can found its application in situat... ... and textual analysis (Gibbons 2003, p. 26).Works CitedCoulthard, M, & Johnson, A 2007, an introduction to forensic linguals language in evidence, Routledge, brand-new York.Gibbons, J 2003, rhetor ical linguistics an introduction to language in the justice system, Blackwell Pub, Malden.Gibbons, J, & Turell, TM 2008, Dimensions of forensic linguistics, John Benjamins Publishing Company, Amsterdam.Jordan, SN 2002, Forensic linguistics the linguistic analyst and expert witness of language evidence in criminal trials, Biola University, La Mirada.McMenamin, GR, & Choi, D 2002 Forensic linguistics advances in forensic stylistics, Crc Press, Boca Raton.Olsson, J 2008, Forensic linguistics, Continuum, London.Olsson, J 2004, Forensic linguistics an introduction to language, crime, and the law, Continuum International Publishing Group, London .