Loading presentation...

Present Remotely

Send the link below via email or IM


Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.


Forensic Phonetics

No description

on 19 November 2013

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Forensic Phonetics

Forensic Phonetics
What do Forensic Phoneticians Do?
Analysis of Transmitted Speech Signals
Speech Enhancement and Decoding
Tape Authentication
Examination of the Communication Acts
Speaker Analysis
Speaker Identification
Signal Analysis
Speech Enhancement
- Increasing Intelligibility
Electronic filtering, noise elimination programs
Speech Decoding
- Analyzing Spectrograms
Sifting through recorded clues to recreate what was said, when it was said, and any other pertinent information
Authenticating Recordings
- Confirming Original Status
Physical examination
Laboratory examination
Content Analysis
Speaker Identification
Aural/perceptual approaches
Earwitness testimony
Perceptual speaker identification
Machine/computer approaches
SAUSI: Semi-Automatic Speaker Identification
Vocal Behaviors
External Conditions
Intentional Behaviors
Health States

Forensic Phonetics is a relatively recent development involving several disciplines and a mixture of traditional and high-tech approaches.
Ethics in this field are paramount.
Additional research is needed in every facet of forensic phonetics.
What is Forensic Phonetics?
Forensic Phonetics
The application of expertise in phonetics to issues involving law enforcement and legal contexts
An exceptionally high standard of ethics is required for anyone contributing to the field of forensic science.
By: Jennifer Bliss
Language Analysis for the Determination of Origin of Asylum Seekers

Fraser, H. (2011). Forensic Phonetics. Retrieved from

Glitza, F. (2002). Forensic Phonetics. Retrieved from

Hollien, H., Bahr, R. H., & Harnsberger, J. D. (in press).
Issues in forensic voice. Journal of Voice. Retrieved from http://ezproxy.twu.edu:2055/science/article/pii/S0892199713001318#

Rodman, R. (2002). Linguistics and the law: How
knowledge of, or ignorance of, elementary linguistics may affect the dispensing of justice. Forensic Linguistics, 9 (1), p. 92-101.
Fraser (2011), Hollien, Bahr, & Harnsberger (in press)
Fraser (2011),
Glitza (2002),
Hollien et al. (in press)
Hollien et al. (in press)
Hollien et al. (in press), p. 4
Fraser (2011)
Hollien et al. (in press)
Hollien et al. (in press), p. 11
Glitza (2002), Hollien et al. (in press)
Potential Pitfalls
"Ignorance of elementary linguistic concepts may have a bearing on justice" (Rodman, 2002, p. 92).

Haitian-born American sentenced to prison for 12 years on drug charges
Guilty verdict based on alleged recording of the defendant
Prosecution made incorrect claims regarding basic linguistic principles that resulted in the defendant's conviction
Rodman, 2002
Full transcript