Duration
30h Th, 22h Pr, 8h Labo.
Number of credits
| Master of Science (MSc) in Electrical Engineering | 5 crédits |
Lecturer
Language(s) of instruction
English language
Organisation and examination
Teaching in the first semester, review in January
Schedule
Units courses prerequisite and corequisite
Prerequisite or corequisite units are presented within each program
Learning unit contents
Course description
Fundamentals of applied acoustics and electroacoustics are gathered in this course.
Contents
- Interaction between the sound sources and their environment (radiation, propagation, reflection, transmission, diffraction)
- The Kundt standing wave tube and the measurement of sound absorption
- Room acoustics and auralization
- Electrical, mechanical and acoustic analogies (electroacoustic models of complete acoustic systems)
- Microphones and loudspeakers: properties and electoacoustic models
- Microphone arrays
Learning outcomes of the learning unit
At the end of this course, it is intended that the student will be able to:
- identify the fundamental variables in acoustics, the modes of acoustic propagation and the diiferent kinds of acoustic sources,
- calculate the radiation impedance of acoustic sources,
- understand and apply some noise indicators describing discomfort, in particular equivalent noise levels,
- measure (under normal incidence) the reflection coefficients and acoustic impedances of material samples,
- understand the effects of eigenmodes in rooms and determine their frequencies,
- calculate and measure reverberation times,
- propose simulation models in room acoustics,
- set up the electroacoustic model of acoustical systems,
- develop the electroacoustic model of microphones and determine their main parameters,
- develop the electroacoustical model of loudspeakers and determine their main parameters,
- measure the principal characteristics of loudspeakers.
Prerequisite knowledge and skills
Fundamentals of electrical circuits analysis Mathematics : differential equations
Planned learning activities and teaching methods
First of all, this course is organised in 13 lessons, each of them consisting in a general presentation ex cathedra. Some lessons contain applications and exercices with the teacher or teaching assistant.
Some laboratory measurement sessions are planned, for example the measurement of reflection coefficients with the Kundt tube or the measurement of loudspeakers' properties. The presence of the students to these sessions is strongly recommended. These laboratory sessions are organised only once per academic year.
A small project is also scheduled at the end of the course, supervised by the teaching assistant and covering the last two or three half-day lessons. This activity is mandatory: if no report is provided by the student at the end of this activity, a note A (absent) will be assigned.
IMPORTANT: the COVID-19 health situation could possibly modify this organization, in particular concerning the in-class exercises, project and laboratory sessions.
Mode of delivery (face to face, distance learning, hybrid learning)
Face-to-face learning
IMPORTANT: the COVID-19 health situation could possibly modify this organization.
Organisational adjustments related to the current health context
Recommended or required readings
The learning materials and documents will be provided by the teacher on-line, via the student intranet. These are mainly the slides presented and commented by the teacher during the oral presentations. For the lesson dedicated to loudspeakers, written notes are vailable.
Recommended readings (non-mandatory):
Rossi M., Audio, Presses polytechniques et universitaires romanes (2007)
Leach, Introduction to Electroacoustics and Audio Amplifier Design - 2nd edition, Kendall/Hunt Publishing Cy (2001)
Kuttruff H., Room acoustics 4th ed., Taylor & Francis (2000)
Watkinson, The art of sound reproduction,Focal Press (1998)
Assessment methods and criteria
Below you will find information on the evaluation methods planned for in-person and remote exams as well as those planned for hybrid sessions. Depending on how the health crisis evolves, the chosen method will be communicated to you no later than one month before the start of the exam session.
Any session :
- In-person
written exam ( open-ended questions )
- Remote
written exam ( open-ended questions ) AND oral exam
- If evaluation in "hybrid"
preferred in-person
Additional information:
A written examination is organised (1st and 2nd session). The questions will cover the theory and exercises, but also the laboratory sessions.
(an electronic calculator is strongly recommended).
The report on the small project is a part of the evaluation: if no report is provided by the student, a note A will be assigned for this course.
EVALUATION IN CASE OF CODE ORANGE OR RED (Covid-19)
The examination will be probably organized by videoconference (Lifesize).
The examination will consist of two parts: the first part is an interview about theoretical questions (without access to the notes) and during the second part, the student will have to solve some problems (exercises similar to those solved during the lessons), with an access to the notes.
The student and the professor will remain connected (microphone and camera open) during the two parts of the examination.
Work placement(s)
Organizational remarks
This course is organised during the first (autumn) quadrimester 2020-21, at the Montefiore Institute B28.
The official language is english.
IMPORTANT: the COVID-19 health situation could possibly modify this organization. At the time of writing this document, there are still uncertainties on the future practical organization of the courses.
Contacts
J.J. Embrechts