Audio Technology 1

Corequisite:

The course cannot be taken simultaneously with:

Audio technology 1 (B2M99ZVT)

The course is a substitute for:

Audio technology 1 (B2M99ZVT)

Garant předmětu:

Libor Husník

Lecturer:

Libor Husník, Ondřej Jiříček, František Rund

Tutor:

Libor Husník, Vojtěch Jandák, Ondřej Jiříček, František Rund

Supervisor:

Department of Radioelectronics

Synopsis:

The course provides fundamentals of physical acoustics and acoustic measurement, including problems of noise from technical and perceptional point of view. In the second part principles of electroacoustic and electromechanical transducers are explained along with their analysis. Principles of audio compressing systems and spatial sound processing are also treated.

Requirements:

Students should master knowledge of maths, physics, signal theory and electric circuits theory at the bachelor state exam level.

Syllabus of lectures:

1. Acoustic waves in gases and liquids

2. Acoustic waves in solid state

3. Elementary sound sources

4. Acoustic waveguides

5. Acoustical measurement, sound level meter, acoustic intensity and power

6. Noise, physiological, psychoacoustical and technical aspects

7. Electrodynamic and electromagnetic transducers

8. Piezoelectric and electrostatic transducers

9. Acoustic transmitters, loudspeakers and loudspeaker systems

10. Acoustic receivers, microphones

11. Calibration of electroacoustic transducers and other electroacoustic measurements

12. Measurement and analysis of linear and nonlinear acoustic systems

13. Lossy and lossless sound compressions

14. Spatial sound processing

Syllabus of tutorials:

1. Introduction, seminar on sound propagation

2. Introduction to lab excercises

3. Eigenmodes measurement

4. Measurement of electrodynamic loudspeaker parameters

5. Calibration of earphones on the artificial ear

6. Electrostatic calibration

7. Seminar - electrodynamic loudspeaker in a box

8. Transfer function measurement using EASERA

9. Implementation of sweep method in Matlabu

10. Implementation of MLSSA method in Matlabu

11. Compressed signal quality evaluation

12. Implementation of sound compression method in Matlabu

13. Consultation/back-up for the length of the semester

14. Credit

Study Objective:

The course is aimed at fundamental knowledge in audio engineering.

Study materials:

[1] Kuttruff, H.: Acoustics, Taylor and Francis 2007

[2] Beranek, L.L., Vér, I.L.: Noise and vibration control engineering, John Wiley & Sons, Inc. New York, 2006.

Note:

Further information:

https://moodle.fel.cvut.cz/courses/BE2M99ZVT

Time-table for winter semester 2022/2023:

	06:00–08:0008:00–10:0010:00–12:0012:00–14:0014:00–16:0016:00–18:0018:00–20:0020:00–22:0022:00–24:00
Mon
Tue	roomT2:B3-554 Husník L. Jiříček O. 09:15–10:45 (lecture parallel1) Dejvice Laboratoř K337roomT2:B3-554 Husník L. Rund F. 12:45–14:15 (lecture parallel1) Dejvice Laboratoř K337roomT2:B3-554 Husník L. Rund F. 14:30–16:00 (lecture parallel1) Dejvice Laboratoř K337
Wed
Thu
Fri

Time-table for summer semester 2022/2023:

Time-table is not available yet

The course is a part of the following study plans:

• Electronics and Communications - Audiovisual Technology and Signal Processing (compulsory course in the program)