Audiotechnics

Data is displayed for academic year: 2023./2024.

Lecturers

Prof.
Ivan Đurek
Assoc. Prof.
Marko Horvat
Prof.
Antonio Petošić

Lectures

Asst. Prof.
Mia Suhanek

Course Description

Basics of audio technology and concepts of analogue and digital audio devices. Measuring units. Audio preamplifiers, power amplifiers. Devices for amplitude, dynamic, time and frequency processing of audio signals. Connecting of audio devices and systems. Distortions of audio devices. Testing of audio devices, components and systems. Digital audio devices. Specific features of audio signal sampling. Theory of A/D and D/A converters and their application in audiotechnics. Connection between digital audio devices and system latecy.

Study Programmes

University undergraduate
[FER3-EN] Computing - study
Elective Courses (6. semester)
[FER3-EN] Electrical Engineering and Information Technology - study
Elective Courses (6. semester)

Learning Outcomes

  1. Compare specifications of audio devices
  2. Evaluate quality of audio devices according to tests
  3. Describe operational principle of devices for audio signal processing
  4. Describe sampling theorem
  5. Describe operational principle of A/D and D/A converters
  6. Describe basic methods for audio signal processing

Forms of Teaching

Lectures

Lectures are held during 14 weeks

Exercises

Auditory exercises include calculation of practical tasks from the field of audio signal processing

Laboratory

As a part of the course it is necessary to attend to 5 laboratory exercises

Grading Method

Continuous Assessment Exam
Type Threshold Percent of Grade Threshold Percent of Grade
Laboratory Exercises 0 % 25 % 0 % 25 %
Mid Term Exam: Written 0 % 25 % 0 %
Final Exam: Written 0 % 40 %
Final Exam: Oral 10 %
Exam: Written 0 % 65 %
Exam: Oral 10 %

Week by Week Schedule

  1. Audio signal in time and frequency domain, Effective and peak values (measurements)
  2. Types of distortions (linear, nonlinear)
  3. Test methods, Understanding specifications of audio devices, Practical use of measurement devices
  4. Methods of time, frequency and dynamic processing
  5. Passive elements circuits, Operational amplifiers circuits
  6. Operational amplifiers circuits
  7. Operational amplifiers circuits
  8. Midterm exam
  9. Power amplifiers, Specific features of practical audio circuits
  10. Audio signal sampling theorem, Sampling and quantization errors
  11. A/D and D/A audio converters
  12. A/D and D/A audio converters, Errors and converter noise
  13. Theory of sigma-delta modulation
  14. Visit
  15. Final exam

Literature

(.), Jelaković, Veselinović, Tranzistorska audio pojačala,
(.), Rumsey, McCormick, Sound and Recording,
(.), Cordell, Designing Audio Power Amplifiers,
(.), Pohlman, Principles of Digital Audio,

For students

General

ID 223332
  Summer semester
5 ECTS
L3 English Level
L3 e-Learning
45 Lectures
0 Seminar
15 Exercises
10 Laboratory exercises
0 Project laboratory
0 Physical education excercises

Grading System

90 Excellent
75 Very Good
60 Good
50 Sufficient

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