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| ELEN0009-1 | Building Acoustics and Noise Control
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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 : The basic principles of acoustical engineering are presented and explained. The course includes the description of the techniques that can be used to solve the most frequent problems in room acoustics, sound insulation in buildings, how to evaluate discomfort and annoyance and how to reduce the noise generated by human activities (industry, traffic).
Contents : Fundamentals of acoustics, psychoacoustics and sound level measurements, evaluation of discomfort and annoyance, environmental regulations, room acoustics, air-borne and structure-borne sound insulation, traffic noise (road and airport). |
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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:
- understand the basics of sound propagation and its different modes,
- evaluate and measure sound levels in decibels and combine the contribution of several sound sources,
- understand the basics of psychoacoustics and the origin of the dBA,
- understand and apply some noise indicators describing discomfort, in particular equivalent noise levels,
- apply the method of expertise ISO 1996 and the environmental noise regulation used in Wallonia,
- understand the typical phenomena in outdoor sound propagation,
- compute the attenuation of noise barriers in simple situations,
- understand and apply some indicators of traffic noise,
- understand the effects of eigenmodes in rooms and determine their frequencies,
- calculate and measure reverberation times,
- identify the most frequent problems in architectural acoustics and propose solutions,
- propose simulation models in room acoustics,
- identify the most frequent problems in building sound insulation and propose solutions,
- evaluate the transmission index of simple walls. |
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Prerequisites and co-requisites/ Recommended optional programme components :
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| Basics mathematics and physics for engineering studies. |
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Planned learning activities and teaching methods :
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| First of all, this course is organised in modules, each of them consisting in a general presentation ex cathedra, followed by applications and exercices with the teacher. Sometimes, these exercices are included in the general presentation.
Some labo demonstration can be organised, if possible. Also, it is intended to carry out a small project in room acoustics at the end of the course, which should be concluded by a report.
It is recommended that the students actively participate to the general presentation by answering questions and formulate critics. Also during the exercices, the students must be equipped with a calculator.
It is also recommended to read and understand the theory and exercices of the previous lesson before assisting to the next one. Additional exercices will also be proposed: it is strongly recommended that the students try to solve them by themselves and ask the teacher to evaluate their solution. |
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Mode of delivery (face-to-face ; distance-learning) :
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| Face-to-face learning. |
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Recommended or required readings :
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| The students must have the two following books (available at the students' Centrale des Cours):
(in french)
- Acoustique Appliquée: fondements et lutte contre le bruit (J.J. Embrechts, 2008)
- Acoustique du bâtiment (J.J. Embrechts, 2008) |
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Assessment methods and criteria :
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| The evaluation is first based on an oral examination during which the student will answer to questions concerning the theoretical matters that have been exposed during the presentations ex-cathedra. He/she will also solve one or two exercises (bringing a calculator is essential).
All books and notes can be consulted for the solution of exercices, except if otherwise stated.
Finally, the report of the small project in room acoustics is also part of the evaluation. |
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Organizational remarks :
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| This course is organised during the autumn semester, together with the course ELEN-0077.
Site: Montefiore Institue B28. |
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Contacts :
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| J.J. Embrechts |
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