Room acoustics and spatial sound

Course guarantor:

Lecturer:

Tutor:

Supervisor:

Department of Radioelectronics

Synopsis:

The course presents fundamental concepts from room acoustics including propagation of sound in various types of media, methods for acoustic treatments and evaluation of both objective and subjective. The second part of the course relates to technology of spatial sound and methods for its implementation both in listening rooms and in headphones. Both parts are focused on practice of technicians in recording studios

Requirements:

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

Syllabus of lectures:

1. Waves in a free field, types of waves

2. Acoustics of closed spaces

3. Subjective and objective methods of evaluating room acoustics

4. Methods of acoustic treatment

5. Measuring methods in room acoustics

6. Subjective measuring methods - fundamentals of psychometry

7. Acoustics of small spaces, sound reinforcement

8. Sound insulation of space

9. Methods of impulse response measurement (MLS, sweep)

10. Fundamentals of spatial sound, binaural sound

11. Sound capture and reproduction in traditional channel systems

12. Ambisonics of the first and higher orders. WFS

13. Object-oriented audio, Audio Definition Model

14. Application examples, audio for VR, Auditory display

Syllabus of tutorials:

1. Introduction, seminar on sound propagation

2. Introduction to lab excercises

3. Eigenmodes measurement

4.

5.

6.

7.

8. Transfer function measurement using EASERA

9. Implementation of sweep method in Matlab

10. Implementation of MLSSA method in Matlab

11. HRTF

12. Ambisonics

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

14. Credit

Study Objective:

Study materials:

Recommended literature:

[1] Kuttruff, H., Vorlaender, M.: Room Acoustics, 7th edition, CRC Press 2024

[2] Xie, B.: Spatial Sound: Principles and Applications, 1st ed. CRC Press 2022

[3] catalog sheets of acoustic material manufacturers.

Other study aids include lecture materials in Moodle, lab materials.

Note:

Further information:

No time-table has been prepared for this course

The course is a part of the following study plans:

• Communications and Internet of Things - Audiovisual Technology (compulsory course in the program)