Teaching Responsibility
LJMU Schools involved in Delivery:
Engineering
Learning Methods
Lecture
Practical
Tutorial
Module Offerings
7110AMP-JAN_NS-CTY
7110AMP-SEP-CTY
Aims
To provide students with a comprehensive understanding of the theory, processes and techniques in the field of Audio Forensics
To equip the student with knowledge and understanding to critically analyse, select and apply appropriate techniques to prepare, transcode, manipulate, store and report upon audio materials to be used in forensic media investigations
To foster an environment that promotes self-refection, peer review and a keen awareness of the potential impact of various forms of bias can have on the interpretation of results within the evidence chain
Learning Outcomes
1.
Critically appraise Audio materials obtained from a variety of common sources
2.
Transfer, store and manipulate audio materials for forensic purposes to recognised guidelines and standards
3.
Analyse and process materials recognising the risks, implications and potential influence that the procedures they have undertaken may have on the outcomes of criminal investigations
4.
Prepare documentation and reports to the appropriate standards
Module Content
Outline Syllabus:Introduction to Audio and Forensic Audio
Sound and Wave theory
The Ear and the way we hear
Hearing (Health and Safety, Limits Range and Protection)
Equipment Choice and Specification
Equipment connectivity, Cabling and Standards
Reverberation/Diffraction/Inverse Square Law
Measurement Scales tools and techniques
Digital Sampling and related Audio Theory
Audio Visualisation Tools charts and techniques
Audio Signal Chain theory
Critical Listening and Evaluation
Risks of Bias in Audio Forensic Procedures
Working to ISO Guidelines for Audio in Forensics
Modern Audio capture encoding and storage techniques
Limitations of Audio Capture equipment and common file formats
Digital Audio Coding and common compression techniques
Common File identification and size calculations
Benchmarking and Reference Equipment setup
Audio Handling and Extraction Techniques
Audio Processing techniques for identifying Authenticity
Reporting and Preparation of documentation
Module Overview:
This module will provide students with a thorough understanding of the relevant theory, skills, processes and procedures pertinent to their current /potential role as an Audio Technician and prepare them for a career as an Audio Forensic Specialist. The focus will be on many common real-life situations although there may be scope to further specialise in specific areas of the field.
This module will provide students with a thorough understanding of the relevant theory, skills, processes and procedures pertinent to their current /potential role as an Audio Technician and prepare them for a career as an Audio Forensic Specialist. The focus will be on many common real-life situations although there may be scope to further specialise in specific areas of the field.
Additional Information:This module will provide students with a thorough understanding of the relevant theory, skills, processes and procedures pertinent to their current /potential role as an Audio Technician and prepare them for a career as an Audio Forensic Specialist. The focus will be on many common real-life situations although there may be scope to further specialise in specific areas of the field.
The Syllabus involves applying the Audio processing chain appropriately with a keen awareness of the risks and implications associated with the standards and processes required for each procedure:
1. Capture/ Duplication/Handling of files from original format in professional manner
2. Transfer of files to digital editing and analysis software
3. Authentication Assessment of files
4. Manipulation and Preparation of Audio files in Audio Software for forensic investigation purposes
5. Safe storage and transfer techniques
6. Quality Assessment and Documentation for effectiveness, acceptability, impact accuracy and repeatability of the Audio processes completed to a level of competence where the student is able to prepare materials for submission in court