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ARTI9002 - Audio Signal Processing

Title:Audio Signal Processing
Long Title:Audio Signal Processing
Module Code:ARTI9002
Duration:1 Semester
Credits: 5
NFQ Level:Expert
Field of Study: Artificial Intelligence & Signal & Image Processing
Valid From: Semester 1 - 2017/18 ( September 2017 )
Module Delivered in 2 programme(s)
Module Coordinator: JOSEPH CONNELL
Module Author: HUGH MC CARTHY
Module Description: Introduction to audio signal processing comprising digitisation, signal spectral analysis, digital filtering, sample rate conversion, digital signal manipulation and compression and linear and nonlinear wave synthesis
Learning Outcomes
On successful completion of this module the learner will be able to:
LO1 Describe the process of signal digitisation
LO2 Predict the spectral attributes of several signal types
LO3 Design difference equations to implement digital filters and oscillators
LO4 Design and implement sample rate conversion strategies
LO5 Design and implement through software various sound manipulation and synthesis strategies
LO6 Employ a computational software package to analyse and synthesise single and multitone sound signals and to display signal and system characteristics
Pre-requisite learning
Module Recommendations

This is prior learning (or a practical skill) that is strongly recommended before enrolment in this module. You may enrol in this module if you have not acquired the recommended learning but you will have considerable difficulty in passing (i.e. achieving the learning outcomes of) the module. While the prior learning is expressed as named MTU module(s) it also allows for learning (in another module or modules) which is equivalent to the learning specified in the named module(s).

Incompatible Modules
These are modules which have learning outcomes that are too similar to the learning outcomes of this module. You may not earn additional credit for the same learning and therefore you may not enrol in this module if you have successfully completed any modules in the incompatible list.
No incompatible modules listed
Co-requisite Modules
No Co-requisite modules listed

This is prior learning (or a practical skill) that is mandatory before enrolment in this module is allowed. You may not enrol on this module if you have not acquired the learning specified in this section.

No requirements listed

Module Content & Assessment

Indicative Content
DSP Hardware
Block diagram description of the digitisation of an analogue signal
Digital Signals
Sampling, quantisation,PCM, companding, error codes
Spectral Analysis
Fourier series/transform, amplitude and phase, resolution
Digital Filtering
Design of digital filters, nonrecursive and recursive, analysis of characteristics, implementation, design of digital oscillators
Multirate Sampling
Efficient methods for up/down sampling using software
Manipulating Digital Signals
Pitch Shifting, Time shifting using overlap-add, compression
Linear and nonlinear waveshaping
Assessment Breakdown%
Course Work100.00%
Course Work
Assessment Type Assessment Description Outcome addressed % of total Assessment Date
Performance Evaluation Verify the sampling process, explore quantisation effects, display spectral analysis in MATLAB 1,2 30.0 Week 4
Performance Evaluation Design digital filter/oscillator, display characteristics, verify operation 2,3 30.0 Week 7
Performance Evaluation Perform up/down sampling strategies and verify results through wav files 1,2,3,4,5 30.0 Week 10
Project Devise and implement a complex sound synthesis programme and present results 1,2,3,4,5,6 10.0 Week 12
No End of Module Formal Examination

The institute reserves the right to alter the nature and timings of assessment


Module Workload

Workload: Full Time
Workload Type Workload Description Hours Frequency Average Weekly Learner Workload
Lecture No Description 2.0 Every Week 2.00
Lab No Description 1.0 Every Week 1.00
Independent & Directed Learning (Non-contact) No Description 4.0 Every Week 4.00
Total Hours 7.00
Total Weekly Learner Workload 7.00
Total Weekly Contact Hours 3.00
This module has no Part Time workload.

Module Resources

Recommended Book Resources
  • Ken C. Pohlmann 2010, Principles of Digital Audio, 6th Ed., McGraw Hill New York [ISBN: 978-007166346]
  • Udo Z√∂lzer 2011, DAFX: Digital Audio Effects, 2nd Ed., John Wiley & Sons [ISBN: 978-047066599]
Supplementary Book Resources
  • McClellan, Schafer, Yoder 2003, Signal Processing First, 2nd Ed., Pearson [ISBN: 978-013090999]
This module does not have any article/paper resources
Other Resources
  • CD-ROM: Perry R. Cook 2002, Real Sound Synthesis for Interactive Applications , A K Peters, Massachusettes

Module Delivered in

Programme Code Programme Semester Delivery
CR_GMUTE_9 Master of Arts in Music and Technology 2 Elective
CR_GMUST_9 Master of Science in Music and Technology 2 Mandatory

Cork Institute of Technology
Rossa Avenue, Bishopstown, Cork

Tel: 021-4326100     Fax: 021-4545343
Email: help@cit.edu.ie