Recorded speech and written texts are increasingly presented as scientific evidence in legal cases. This is due to the fact that the accessibility and anonymity of mobile phones and the internet mean that they are often exploited for criminal acts, but at the same time they leave records which must then be analysed as forensic evidence. This has led to a rapid growth of forensic voice/text comparison as a field of forensic science. The theories and techniques, which are necessary to analyse linguistic evidence, are introduced and demonstrated, with a particular focus on voice and text as linguistic evidence, using examples taken from various languages. In this course, we overview the process of forensic voice/text comparison, including extraction of individualising information from speech/text samples; modelling of speakers/authors, experimental procedures; calculation of evidential strength and performance assessment. Students will be trained so that they can apply their acquired skills and knowledge to actual linguistic data.
Learning Outcomes
Upon successful completion, students will have the knowledge and skills to:
After successfully completing this course, students should be able to 1. Enhance the linguistic knowledge of the target language and beyond; 2. Explain the admissibility of scientific evidence; 3. Explain why the likelihood ratio-based framework is not only logically but also legally a correct way of analysing and presenting forensic evidence; 4. Understand the concept of likelihood ratio and Bayesian theorem; 5. Understand the nature of speech and text data as forensic evidence; 6. Extract individualising features from speech and text samples, and model them using appropriate statistical procedures; 7. Carry out forensic voice/text comparison tests; 8. Understand the concept of the metrics used in forensic voice/text comparison and appropriately use those metrics in the experiments; and 9. Understand and discuss the current issues surrounding forensic voice/text comparisons.
Indicative Assessment
Summary assignment, 5%
Bibliography/Annotation assignment, 15%
Take-home assignments, 40%
Final exam: 40%
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Workload
Two lectures and one tutorial per week
Requisite and Incompatibility
Majors
Minors
Fees
Tuition fees are for the academic year indicated at the top of the page.
If you are a domestic graduate coursework or international student you will be required to pay tuition fees. Tuition fees are indexed annually. Further information for domestic and international students about tuition and other fees can be found at Fees.
- Student Contribution Band:
- 1
- Unit value:
- 6 units
If you are an undergraduate student and have been offered a Commonwealth supported place, your fees are set by the Australian Government for each course. At ANU 1 EFTSL is 48 units (normally 8 x 6-unit courses). You can find your student contribution amount for each course at Fees. Where there is a unit range displayed for this course, not all unit options below may be available.
| Units | EFTSL |
|---|---|
| 6.00 | 0.12500 |
Course fees
- Domestic fee paying students
| Year | Fee |
|---|---|
| 2015 | $2604 |
- International fee paying students
| Year | Fee |
|---|---|
| 2015 | $3576 |
Offerings, Dates and Class Summary Links
ANU utilises MyTimetable to enable students to view the timetable for their enrolled courses, browse, then self-allocate to small teaching activities / tutorials so they can better plan their time. Find out more on the Timetable webpage.
Class summaries, if available, can be accessed by clicking on the View link for the relevant class number.
Second Semester
| Class number | Class start date | Last day to enrol | Census date | Class end date | Mode Of Delivery | Class Summary |
|---|---|---|---|---|---|---|
| 3517 | 20 Jul 2015 | 07 Aug 2015 | 31 Aug 2015 | 30 Oct 2015 | In Person | N/A |
