• Class Number 4024
  • Term Code 3130
  • Class Info
  • Unit Value 6 units
  • Mode of Delivery In Person
    • AsPr Shunichi Ishihara
    • AsPr Shunichi Ishihara
  • Class Dates
  • Class Start Date 22/02/2021
  • Class End Date 28/05/2021
  • Census Date 31/03/2021
  • Last Date to Enrol 01/03/2021
SELT Survey Results

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.

Staff Feedback

Students will be given feedback in the following forms in this course:
  • Written comments
  • Verbal comments
  • Feedback to the whole class, to groups, to individuals, focus groups

Student Feedback

ANU is committed to the demonstration of educational excellence and regularly seeks feedback from students. Students are encouraged to offer feedback directly to their Course Convener or through their College and Course representatives (if applicable). The feedback given in these surveys is anonymous and provides the Colleges, University Education Committee and Academic Board with opportunities to recognise excellent teaching, and opportunities for improvement. The Surveys and Evaluation website provides more information on student surveys at ANU and reports on the feedback provided on ANU courses.

Class Schedule

Week/Session Summary of Activities Assessment
1 Week 1: Introduction and overview of the course, and introduction of likelihood ratio and Bayesian theorem 1
2 Week 2: Introduction of likelihood ratio and Bayesian theorem 2
3 Week 3: Testing, and basic statistics and resources (Recorded lecture)
4 Week 4: R statistical package and libraries 1 Assessment task 1 Due: 11:55pm, Friday 19 March
5 Week 5: R statistical package and libraries 2
6 Week 6: R statistical package and libraries 3
7 Week 7: Forensic voice comparison 1
8 Week 8: Forensic voice comparison 2 (Recorded lecture) Assessment task 2 Due: 11:55pm, Friday 30 April
9 Week 9: Performance assessment
10 Week 10: Forensic text comparison 1
11 Week 11: Forensic text comparison 2 Assessment task 3 Due: 11:55pm, Friday 21 May
12 Week 12: Review

Tutorial Registration

Tutorial registration is available on Wattle

Assessment Summary

Assessment task Value Due Date Return of assessment Learning Outcomes
Paper summary/critical review assignment 10 % 19/03/2021 02/04/2019 2,3,9
Take-home assignment 1 25 % 30/04/2021 14/04/2021 1,3,4,5,6,7,8
Take-home assignment 2 25 % 21/05/2021 04/06/2021 1,3,4,5,6,7,8
Final exam 40 % 01/07/2021 * 1,2,3,4,5,6,7,8,9

* If the Due Date and Return of Assessment date are blank, see the Assessment Tab for specific Assessment Task details


ANU has educational policies, procedures and guidelines, which are designed to ensure that staff and students are aware of the University’s academic standards, and implement them. Students are expected to have read the Academic Misconduct Rule before the commencement of their course. Other key policies and guidelines include:

Assessment Requirements

The ANU is using Turnitin to enhance student citation and referencing techniques, and to assess assignment submissions as a component of the University's approach to managing Academic Integrity. For additional information regarding Turnitin please visit the ANU Online website Students may choose not to submit assessment items through Turnitin. In this instance you will be required to submit, alongside the assessment item itself, hard copies of all references included in the assessment item.

Moderation of Assessment

Marks that are allocated during Semester are to be considered provisional until formalised by the College examiners meeting at the end of each Semester. If appropriate, some moderation of marks might be applied prior to final results being released.


Students are expected to attend all classes, keep up with assigned readings, and contribute to class

discussions, as well as do the assignments given out.

Assessment Task 1

Value: 10 %
Due Date: 19/03/2021
Return of Assessment: 02/04/2019
Learning Outcomes: 2,3,9

Paper summary/critical review assignment

Due: 11:55pm, Friday 19 March

Students will be given a journal paper and are asked to provide a one page summary/critical comment (should be more than 1000 words, but less than 1100 words) of the paper. Your submission must contain 1) a summary (c.a. 400 words) and 2) critical comments (c.a. 600 words) of the paper. For writing critical reviews, please see: http://www.anu.edu.au/students/learning-development/writing-assessment/critical-reviews. A summative feedback will be given to the whole class together with individual written feedback by the end of Week 6. A marking rubric will be given on wattle.

Assessment Task 2

Value: 25 %
Due Date: 30/04/2021
Return of Assessment: 14/04/2021
Learning Outcomes: 1,3,4,5,6,7,8

Take-home assignment 1

Due: 11:55pm, Friday 30 April

This take-home assignment is mainly on forensic voice comparison. A more detailed instruction will be given on Wattle. Individual feedback will be given. The course convenor endeavors to finish marking and return the assignment within two weeks after the submission due. Marks may be subject to moderation. This means that the raw score that you end up with at the end of the semester may not be your final mark. This assignment is a hurdle assessment.

Assessment Task 3

Value: 25 %
Due Date: 21/05/2021
Return of Assessment: 04/06/2021
Learning Outcomes: 1,3,4,5,6,7,8

Take-home assignment 2

Due: 11:55pm, Friday 21 May

This take-home assignment is on forensic text comparison. A more detailed instruction will be given on Wattle. Individual feedback will be given. The course convenor endeavors to finish marking and return the assignments within two weeks after the submission due. Marks may be subject to moderation. This means that the raw score that you end up with at the end of the semester may not be your final mark. This assignment is a hurdle assessment.

Assessment Task 4

Value: 40 %
Due Date: 01/07/2021
Learning Outcomes: 1,2,3,4,5,6,7,8,9

Final exam

Date: TBA (Check the exam timetable)

A two~three hour-long final exam (take-home) will also be held during the examination period. Students are required to be and available for the duration of the examination period. You should not make any external commitments or travel plans during this time. A more detailed instruction will be given on Wattle. The final exam is a hurdle assessment.

Academic Integrity

Academic integrity is a core part of our culture as a community of scholars. At its heart, academic integrity is about behaving ethically. This means that all members of the community commit to honest and responsible scholarly practice and to upholding these values with respect and fairness. The Australian National University commits to embedding the values of academic integrity in our teaching and learning. We ensure that all members of our community understand how to engage in academic work in ways that are consistent with, and actively support academic integrity. The ANU expects staff and students to uphold high standards of academic integrity and act ethically and honestly, to ensure the quality and value of the qualification that you will graduate with. The University has policies and procedures in place to promote academic integrity and manage academic misconduct. Visit the following Academic honesty & plagiarism website for more information about academic integrity and what the ANU considers academic misconduct. The ANU offers a number of services to assist students with their assignments, examinations, and other learning activities. The Academic Skills and Learning Centre offers a number of workshops and seminars that you may find useful for your studies.

Online Submission

The ANU uses Turnitin to enhance student citation and referencing techniques, and to assess assignment submissions as a component of the University's approach to managing Academic Integrity. While the use of Turnitin is not mandatory, the ANU highly recommends Turnitin is used by both teaching staff and students. For additional information regarding Turnitin please visit the ANU Online website.

Hardcopy Submission

For some forms of assessment (hand written assignments, art works, laboratory notes, etc.) hard copy submission is appropriate when approved by the Associate Dean (Education). Hard copy submissions must utilise the Assignment Cover Sheet. Please keep a copy of tasks completed for your records.

Late Submission

Late submission of assessment tasks without an extension are penalised at the rate of 5% of the possible marks available per working day or part thereof. Late submission of assessment tasks is not accepted after 10 working days after the due date, or on or after the date specified in the course outline for the return of the assessment item. Late submission is not accepted for take-home examinations.

Referencing Requirements

Accepted academic practice for referencing sources that you use in presentations can be found via the links on the Wattle site, under the file named “ANU and College Policies, Program Information, Student Support Services and Assessment”. Alternatively, you can seek help through the Students Learning Development website.

Extensions and Penalties

Extensions and late submission of assessment pieces are covered by the Student Assessment (Coursework) Policy and Procedure The Course Convener may grant extensions for assessment pieces that are not examinations or take-home examinations. If you need an extension, you must request an extension in writing on or before the due date. If you have documented and appropriate medical evidence that demonstrates you were not able to request an extension on or before the due date, you may be able to request it after the due date.

Privacy Notice

The ANU has made a number of third party, online, databases available for students to use. Use of each online database is conditional on student end users first agreeing to the database licensor’s terms of service and/or privacy policy. Students should read these carefully. In some cases student end users will be required to register an account with the database licensor and submit personal information, including their: first name; last name; ANU email address; and other information. In cases where student end users are asked to submit ‘content’ to a database, such as an assignment or short answers, the database licensor may only use the student’s ‘content’ in accordance with the terms of service — including any (copyright) licence the student grants to the database licensor. Any personal information or content a student submits may be stored by the licensor, potentially offshore, and will be used to process the database service in accordance with the licensors terms of service and/or privacy policy. If any student chooses not to agree to the database licensor’s terms of service or privacy policy, the student will not be able to access and use the database. In these circumstances students should contact their lecturer to enquire about alternative arrangements that are available.

Distribution of grades policy

Academic Quality Assurance Committee monitors the performance of students, including attrition, further study and employment rates and grade distribution, and College reports on quality assurance processes for assessment activities, including alignment with national and international disciplinary and interdisciplinary standards, as well as qualification type learning outcomes. Since first semester 1994, ANU uses a grading scale for all courses. This grading scale is used by all academic areas of the University.

Support for students

The University offers students support through several different services. You may contact the services listed below directly or seek advice from your Course Convener, Student Administrators, or your College and Course representatives (if applicable).
AsPr Shunichi Ishihara

Research Interests

Forensic voice/text comparison, computational linguistics, speech processing

AsPr Shunichi Ishihara

Monday 11:00 12:00
Monday 11:00 12:00
AsPr Shunichi Ishihara
6125 4656

Research Interests

AsPr Shunichi Ishihara

Monday 11:00 12:00
Monday 11:00 12:00

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