Audiotechnics

Course Description

This subject covers the principles of audiotechnics and the concepts of audio systems. Measuring units. Audio preamplifiers, power amplifiers, correction preamplifiers. Devices used for amplitude, dynamic, time and frequency processing of audio signals. Interconnection of audio devicesand systems. Audio devices distortion basics. Basics on measurements on audio frequency circuitry, components, devices and systems. Applications of basic audio devices in sound reinforcement. Basics of digital audio devices. Basic of electroacoustic transducers and their connection with other audio devices.

General Competencies

The subject gives the necessary qualifications for understanding of audiotechnics and audio devices. Based on the knowledge they have gained, the students will be able to identify the most important features of audio devices, audio system's parts and electroacoustic transducers and compare them to similar audio devices, systems and transducers.

Learning Outcomes

  1. describe basic technical characteristics given in a device's specifications
  2. name electroacoustical chain components
  3. reproduce basic concepts behind amplitude, dynamic, time and frequency processing of audio signal
  4. name audio power amplifier classes
  5. design basic circuits of audio preamplifiers and filters
  6. compare various audio devices quality
  7. outline basic concepts of an sound reinforcement system
  8. name basic features of electroacoustic transducers

Forms of Teaching

Lectures

Lectures are organized through two lecturing cycles. The first cycle consists of 7 weeks of lectures and the midterm exam. The second cycle consists of 6 weeks of lectures and the final exam. The lectures are given in total 15 weeks with weekly load of 3 hours.

Exams

Exams consist of one midterm exam and a final exam. The final exam includes materials from all lectures

Laboratory Work

During the 15 weeks of lectures, students must attend 5 laboratory excersises. The exercises are practical and include measurements and construction of basic preamplifier, filter and signal processing devices circuits.

Consultations

Consultations are given after each lecture or specially according to agreement with the lecturer.

Grading Method

Continuous Assessment Exam
Type Threshold Percent of Grade Comment: Percent of Grade
Laboratory Exercises 0 % 20 % 0 % 20 %
Attendance 0 % 5 % 0 % 5 %
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. Measuring units, signals and distortions
  2. Analog preamplifier circuits
  3. Operational amplifier circuits
  4. Audio signal processing in time domain
  5. Audio signal processing in frequency domain
  6. Dynamic processing of audio signals
  7. Basic on mixers and mixing consoles
  8. Exams
  9. Output power amplifiers - basic circuits
  10. Output power amplifiers - stability, protection, thermal dynamics
  11. Basics on digital audio dvices, A/D and D/A conversion
  12. Basics on electroacoustic transducers
  13. Basics on sound reinforcement systems, signal levels in sound reinforcement systems
  14. Screeing of an documentary about sound reinforcement systems
  15. Exams

Study Programmes

Electronics -> Electrical Engineering and Information Technology (Module)

Wireless Technologies -> Electrical Engineering and Information Technology (Module)

Literature

Francis Rumsey, Tim McCormick (2008.), Sound and Recording, Focal Press
Bob Cordell (2011.), Designing Audio Power Amplifiers, McGraw Hill
razni, urednik Glen M. Ballou (2005.), Handbook for Sound Engineers, Focal Press
Scott Hunter Stark (2005.), Live Sound Reinforcement, Thomson Course Technology

Grading System

4 ECTS
L1 English Level
L1 e-Learning
45 Lecturers
0 Exercises
15 Laboratory exercises

Grading

90 Excellent
80 Very Good
65 Good
50 Acceptable