Sound Quality in Broadcasting

Course Description

Physical media and channels for sound transmission. Work organisation of radio station. Optimal acoustic parameters for spaces on radio station.Processing audio signal in the time and frequency domain and preparation for broadcasting. Loudness. Audio properties of AM and FM radio broadcasting channels. Transmission of additional information in FM system (RDS, ARI, SCA). Digitalization of of audio signals. Sampling, quantization and coding. Losless and lossy compression. DAB, DRM, DVB-T and DVB-T2 systems for broadcasting. Internet radio. Multichannel sound, additional information and application in digital radio broadcasting. Measurements on receivers and evaluation of systems quality. Multimedia systems in radio transmission.

General Competencies

Course teaches understanding of radio broadcasting systems. Students will be able, on the basis of this knowledge, to individually analyse, design and develop contemporary radio broadcasting systems.

Learning Outcomes

  1. explain parameters of QoS for audio information
  2. explain organisation of sound broadcasting station
  3. analyze analog and digital sound broadcasting systems
  4. categorize principles of digital audio data reduction
  5. create system for transmission of sound and related data
  6. appraise optimal sound broadcasting system

Forms of Teaching

Lectures

Lectures once a week, 90 minutes duration

Exercises

Auditory excercises

Laboratory Work

Laboratory will be organized through 5 excercises, each of 90 minutes duration.

Grading Method

Continuous Assessment Exam
Type Threshold Percent of Grade Threshold Percent of Grade
Laboratory Exercises 0 % 20 % 0 % 25 %
Class participation 0 % 10 % 0 % 0 %
Mid Term Exam: Written 0 % 30 % 0 %
Final Exam: Written 0 % 40 %
Exam: Written 0 % 50 %
Exam: Oral 25 %

Week by Week Schedule

  1. Physical channels for sound transmission
  2. Organization of radio-workstation. Technological spaces. Optimal acoustic parameters.
  3. Audio signal processing in time and frequency domain and preparation for transmission. Loudness.
  4. AM and FM broadcasting systems.
  5. Influence of errors on AM and FM systems. Measuring audio quality properties of AM and FM receivers.
  6. Digitalization of audio signals. Sampling, quantization and coding.
  7. Losless and lossy audio compression based on psyhoacoustic principles.
  8. Midterm exam.
  9. Digital modulation techniques and application in sound broadcasting. Ortoghonally frequency division multiplex.
  10. DRM i DRM+ system.
  11. DAB and DAB+ system. Procedures for determining of audio systems quality.
  12. Other digital radiobroadcasting systems. Interactive radio broadcasting, internet radio.
  13. Connection of audio signal with other components of multimedia systems. Transfer of sound in a mobile network.
  14. Procedure for translation from analog to digital broadcasting systems. Choosing the most suitable system for Croatia.
  15. Final exam.

Study Programmes

University graduate
Wireless Technologies (profile)
Specialization Course (1. semester) (3. semester)

Literature

W. Hoeg, T. Lauterbach (2009.), Digital Audio Broadcasting: Principles and Applications of DAB, DAB + and DMB, Wiley
R. Blair (2002.), Digital Techniques in Broadcasting Transmission, Focal Press
P. Dambacher (1996.), Digital Broadcasting, IEE

Exercises

Laboratory exercises

Grading System

ID 86470
  Winter semester
4 ECTS
L1 English Level
L1 e-Learning
30 Lecturers
4 Exercises
8 Laboratory exercises

General

90 Excellent
75 Very Good
60 Good
50 Acceptable