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| Module Availability |
| Semester 2 |
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| Assessment Pattern |
• Two equally weighted assignments on the signal processing content of the module - 30%
Exam: a 2-hour written paper under examination conditions - 70%
A mark of at least 40% in each Unit of Assessment is required to pass the module.
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| Module Overview |
| This module is intended to advance your understanding of acoustics, psychoacoustics and audio signal processing using a combination of theory and application. |
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| Prerequisites/Co-requisites |
| • HE1 Acoustics and Audio Signal Processing A |
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| Module Aims |
• To advance your understanding of theoretical and practical aspects of acoustics and psychoacoustics.
• To continue to give you the necessary signal processing background for audio engineering.
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| Learning Outcomes |
On successful completion of this module you should be able to:
• Discuss the measurement and specification of sound levels.
• Explain the processes involved in human auditory perception, including pitch, loudness and directional perception; auditory masking; and hearing impairment.
• Calculate the recommended safe duration for exposure to sound of a given level.
• Discuss the factors to be considered when designing an enclosed space for an acoustic purpose.
• Discuss the evolution of musical pitch and tuning standards.
• Discuss the practicalities of binaural recording and reproduction.
• Discuss the relationships between noise level regulations and hearing impairment.
• Perform convolution on two signals in both the time and frequency domains.
• Calculate the impulse response and transfer function of linear time invariant systems (including comb filters) and plot the phase and magnitude response.
• Discuss the differences between FIR and IIR digital filters.
• Design and test digital audio filters using a computer-aided approach.
• Discuss the techniques used for common audio effects.
Transferable Skills:
• Transferrable subject knowledge
• Programming skills
• Problem solving
• Research skills
• Presentation skills
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| Module Content |
The following is an indication of the likely topics to be covered:
• Human auditory perception.
• Acoustic measurement and specification.
• Acoustic standards in music.
• Convolution of two signals.
• Linear time invariant systems, impulse responses, transfer functions and Bode plots.
• The z-transform.
• FIR and IIR digital filters.
• Designing digital filters.
• Common audio effects.
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| Methods of Teaching/Learning |
• Two two-hour lectures per week.
• Guided reading.
• Preparing and delivering class presentations.
• Coursework assignments and feedback.
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| Selected Texts/Journals |
Compulsory Reading:
• None.
Recommended Reading:
• Angus, J & Howard, D, 1996: Acoustics & Psychoacoustics (Focal Press)
• Everest, F.A., 1994: The Master Handbook of Acoustics (TAB Books)
• Moore, B.C.J., 1989: An Introduction to the Psychology of Hearing (Academic Press)
• Oppenheim, A.V. & Willsky, A.S., 1997: Signals and Systems (Prentice-Hall)
• Zolzer, U., 2003: DAFX: Digital Audio Effects (John Wiley & Sons)
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| Last Updated |
| Date Last Revised: 14/01/11 |
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