20 credits at level HE6
The aim of the module is to introduce students to the basic concepts that underpin digital audio systems, from a qualitative and simple mathematical perspective to the specification & design of simple system components and basic system analysis and integration.
Analogue, discrete and digital signals: an introductory account explaining the basic difference between signal and system representations.
Sampling and quantisation: the process of creating discrete and digital representations and its effect on signal quality.
Discrete-time representations: an overview of the diagrammatical (delay registers) and mathematical (time series) representation of discrete signals and systems.
Computer modelling of discrete-time representations: introduction to MATLAB & SigLab
Basic digital filters: an introduction to basic representations of recursive and non-recursive filters.
Transformation of discrete representations: introduction to fast-Fourier transform
Transformation of discrete representations: introduction to the z-operator
Further digital filters: introduction to simple filter design methods e.g. pole-zero placement and the Fourier method.
Advanced digital systems: introduction to the parametric approach
Applications of digital audio processing: storage and communication; studio production; musical instruments; speaking to machines
A schedule of lectures, tutorials and lab-based sessions combined with seminars and demonstrations will be organised to introduce the basic material of the syllabus and to provide ample opportunity for students to develop both analytical and hands-on skills in handling digital audio systems.
The assignments will provide additional opportunities where students will be expected to adopt an investigative and analytical approach in exploring facts and a systematic and structured approach in carrying out design tasks.
when you have successfully completed this module you will:
to demonstrate that you have achieved the learning outcome you will:
|1.||Understand the principles of sampling and quantization, the components of a digital converter, and the effect of sampling and ADC on signal representation.||
1- Demonstrate understanding of these systems.
2- Be able to specify ADC parameters for specific requirements and system performance
|2.||Understand basic digital processes, in terms of recursive and non-recursive digital systems, their mathematical representation as well as computer implementation.||
1- Demonstrate understanding of various digital system representations.
2- Be able to develop simple computer implementations to simulate system performance described by such representations.
|3.||Appreciate the role of transformation on signal representation, in the frequency and z-domains, including applications based on frequency transformation e.g. spectrum analysis.||
1- Demonstrate understanding of the basics of some transform techniques.
2- Identify suitable transforms for various tasks
3- Work with computer implementations of such transforms.
|4.||Be able to perform simple digital filter design using basic graphical tools and more advanced computer-based design tools.||
1- Demonstrate understanding of basic filter design methods.
2- Produce suitable designs for some basic applications.
3- Use simple CAD systems .
|5.||Appreciate the role of advanced optimal methods in the analysis and design of digital systems.||
1- Demonstrate qualitative understanding of the principles behind optimal analysis and design.
2- Be able to select appropriate techniques for specific applications, and carry out simple performance evaluations.
|6.||Become familiar with typical application areas of digital audio technology, and understand the principal technologies and industry standards that apply to each area.||
1- Demonstrate familiarity with main application areas.
2- Analyse system requirements, specify operational parameters and select system components to meet targets.
3- Integrate components to realise simple system designs.
Your achievement of the learning outcomes for this module will be tested as follows:
|Description||Investigation and analysis||Specification and Design||Unseen written testing of basic understanding and analytical skills|
Before taking this module you must have successfully completed the following:
No restrictions apply.
Zolzer, Udo “Digital Audio Signal Processing”, Wiley, 2001 (ISBN-13: 978-0471972266)
Kenneth, Steiglitz “A DSP primer: with applications to digital audio and computer music” Addison-Wesley, Menlo Park, Calif. ; Harlow, 1996 (ISBN: 0805316841(pbk.))
Zolzer, udo et.al. “DAFX:Digital Audio Effects”, Wiley, 2002 (ISBN-13: 978-0471490784)
Watkinson, John “Art of Digital Audio”, Third Edition (Hardcover) Focal Press, 2000 (ISBN-13: 978-0240515878)
Eduardo Reck Miranda & Marcelo Wanderley “New Digital Musical Instruments: Control And Interaction Beyond the Keyboard” (Computer Music and Digital Audio Series) A-R Editions, Inc., 2006 (ISBN-13: 978-0895795854)
Eargle, John M. “Music, sound, and technology”, 2nd edition. Van Nostrand Reinhold, N.Y., 1995 (ISBN 0442020341 (Cloth))
|Host Subject Group:||Computing & Electronic Technology|
|User Name||Date Accessed||Action|