Faculty of Technical Sciences

Subject: Selected Chapters in Acoustics and Audio Engineering (17.DE212)

Native organizations units: Department of Power, Electronic and Telecommunication Engineering
General information:
 
Category Scientific-professional
Scientific or art field Telecommunications and Signal Processing
Interdisciplinary No
ECTS 10
Educational goal:

The goal of the course is to provide PhD students with further knowledge in audio signals (spech, music and/or noise) and in audio engineering. Numerous topics are covered in classes to a certain extent, after which students will work with a mentor and be encouraged to use further reading material available at the Chair of Telecommunications and Signal Processing. A student selects certain chapters and the extent of study depending on the plan he/she has agreed upon with his/her mentor, and in accordance with the subject professor's recommendations. Apart from the elements of physical and psycho-physiological acoustics (what and how we hear), the obligatory part of the curriculum also involves digital techniques for sound recording and reproduction, audio equipment and signal processing. After that, students can choose between protection against noise, room acoustics, ultrasound technology or more detailed study of audio devices or processing and transmission of audio signals.

Educational outcome:

PhD students acquire knowledge in audio signals (speech, music and/or noise), audio engineering, room acoustics and/or noise protection. Apart from understanding hearing sound, electrical engineering students also learn how to use electro-mechanical-acoustic analogies for acoustic system analysis. They will become familiar with electroacoustic transducers (microphones, speakers and headphones) and other devices and equipment at the Acoustics and Speech Technologies Laboratory, and by visiting music studios and the play recording complex of Radio Novi Sad. Students will deal with measuring devices and learn how to evaluate the acoustic space and design acoustic room processing. They learn how to design sound systems, to measure speech intelligibility, quality of music listening, to calculate and measure the noise level, and finally to identify and qualify potential noise problems and suggest a solution to control and protect against noise in the open and closed spaces.

Course content:

•Physical acoustics: emission and spreading of sound, sound characteristics. •Physiological acoustics: sound perception and influence on people (what and how we hear: dB, Phon, Sone, dB(A). •Psychoacoustics: sound perception (the intensity, pitch and timbre), binaural sound localization, sound masking effect. •Analogies: electro-acoustic and electro-mechanical analogies. •Electro-acoustic transducers: microphones, speakers and headphones. •Electro-acoustic devices: tone technique, measuring devices, filters, amplifiers. •Sound recording and production: analogue (magnetic and optical) and digital (disc, CD, DVD, MP3). •Compression and transmission of audio signals: analogue (FM stereo) and digital (GSM, VoIP, DAB-the digital radio). •Room acoustics: sound in closed space, reverberation time, sound absorbers, acoustic room processing, the acoustics of music and film studios, the acoustics of concert halls, opera houses and churches. •Space sound: indoor and outdoor sound systems. •Music: melody, rhythm, dynamic, music quality, musical instruments, an orchestra seating assignment and recording. •Studio recording: recording of a conversational radio programme or a play with multiple participants, background sounds (effects and noise). •Noise: sources and spreading, noise level and intensity, regulations on acceptable noise level, measuring standards and techniques, noise monitoring in the work and life surroundings, noise reduction and protection methods. •Acoustics in civil engineering: noise spreading pathways, the insulating power of barriers, acoustic barriers and protectors. •Ultrasound: a method of generating, extending and detecting ultrasound; ultrasonic devices; applications in diagnostics and therapy; echolocation, sonar.

Teaching methods:

Classes are a combination of lectures and tutorial work. Study research work includes active monitoring of primary scientific sources, organization and performance of experiments and statistical processing of data, numerical simulations, as well as writing of the paper from the narrow scientific field where the doctoral dissertation belongs to. At the web portal of the Chair of Telecommunications and Signal Processing the students can find PowerPoint presentations of lectures with numerous audio and video attachments and animations, as well as some on-line practice details intended for individual work. A part of the course includes the practice work at the Acoustics and Speech Technologies Laboratory at FTS and at Radio Novi Sad, where the doctoral students are further acquainted with the audio technique in the music and speech studies. The completion of a practical project is the course prerequisite. At the final exam, all the knowledge acquired at the course is evaluated.

Literature:
Authors Title Year Publisher Language
Petar Pravica, Dragan Drinčić Elektrokustika 2006 VŠER, Beograd Serbian language
Dragan Drinčić, Petar Pravica, Dragan Novković Osnovi akustike 2018 VŠERSS, Beograd Serbian language
Vlado Delić i dr. Audio-izdanje udžbenika i prezentacija u okviru CABUNS-a 2018 Univerzitet u Novom Sadu Serbian language
Kurtović, H. Osnovi tehničke akustike 1977 Naučna knjiga, Beograd Serbian language
Ozren Bilan Akustika prostorija, zvučnici, pojačala i spojni vodovi 1998 Sveučilišna knjižnica, Split Serbian language
Arpad Osnović, Ivan Fece, Stevan Tibai Akustika i tonsko snimanje 1990 Sveučilište “M. Pijade”, Zagreb Serbian language
Knowledge evaluation:
Course activity Pre-examination Obligations Number of points
Project Yes Yes 50.00
Oral part of the exam No Yes 50.00
Lecturers:
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doc. Suzić Siniša

Assistant Professor

Lectures
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Popović Branislav

viši naučni saradnik

Lectures
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prof. dr Delić Vlado

Full Professor

Lectures

Faculty of Technical Sciences

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© 2024. Faculty of Technical Sciences.