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| ELEN0019-1 | Treatment of the audio signals : principles and experiments
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| Duration : | 30h Th, 30h Pr |
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| Number of credits : |
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| Lecturer : | Jean‑Jacques Embrechts |
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Language(s) of instruction :
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| French language |
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Course contents :
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| Course description
Analysis and synthesis of audio systems and techniques. Real time processing is an objective of this course, in particular through realisations on a digital signal processor (DSP).
Contents
- Introduction to audio signal processing
- Description of the DSP that will be used during the laboratory sessions
- Conception and realisations of simple digital audio systems (FIR, IIR filters, delays, undersampling, quantification noise)
- Project
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Learning outcomes of the course :
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| At the end of the course, it is intended that the student will be able to:
- conceive and design audio filters and other simple digital audio systems,
- determine (with Matlab) the properties of these systems (stability, impulse and step responses, frequency responses, etc...),
- program the corresponding assembly language code on a (fix-point) DSP,
- measure and test the properties of the realised system.
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Prerequisites and co-requisites/ Recommended optional programme components :
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| Introduction to audio and video techniques, Signal Processing |
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Planned learning activities and teaching methods :
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| After a short theoretical introduction, this course relies mainly on practice sessions consisting of programming a DSP.
During these sessions, the students are included in groups of 3 or 4 (depending on the number of DSPs available). Exercises of increasing difficulty are proposed to the students who have first to conceive and analyse a solution, secondly to program their system on the DSP and finally to test its properties.
An assistant will be present and help them in their works. Each exercise must be concluded by a laboratory report.
Finally, each group will realise a project (different for each group): they will develop an audio application chosen among a list of proposals (equalizer, artificial reverberator, chorus and flanger, guitar chorder, etc...) |
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Mode of delivery (face-to-face ; distance-learning) :
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| Mostly, exercises sessions with the help of an assistant. |
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Recommended or required readings :
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| The learning materials and documents will be provided by the teacher.
Indicative texts:
Zölzer U., DAFX Digital audio effects, Wiley (2008)
Zölzer U., Digital audio processing 2nd ed., Wiley (2008) |
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Assessment methods and criteria :
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| The assessment relies on:
- an evaluation of the laboratory reports,
- an evaluation of the final project report and its oral presentation.
During this presentation, each student will be evaluated individually. |
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Organizational remarks :
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| 2nd quadrimester, Montefiore Institute B28. |
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Contacts :
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| J.J. Embrechts |
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