Naslov
Popularization of acoustics through demonstrations shown on the open door day of the Faculty of Electrical Engineering and Computing in Zagreb, Croatia

Autori
Horvat, Marko ; Jambrošić, Kristian ; Krhen, Miljenko ; Petošić, Antonio

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of e-Forum Acusticum 2020 / Parizet, Etienne ; Becot, Francois-Xavier - Lyon : Universite Lyon, 2020, 3013-3019

Skup
E-Forum Acusticum 2020

Mjesto i datum
Lyon, Francuska, 07.12.2020. - 11.12.2020

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
popularization of science ; education in acoustics ; demonstrations
(popularization of science ; education in acoustics ; demonstrationsof science, education in acoustics, demonstrations)

Sažetak
Popularization of science has a long tradition on the University of Zagreb. The Faculty of Electrical Engineering and Computing follows this tradition by organizing its own Open Door Day. The visitors range from small children and their parents, through pupils from primary and secondary schools, future students, all the way to people in the golden age of their lives. They are given the opportunity to get an insight into various fields of electrical engineering, computing, mathematics, and physics. To achieve this goal, many different exhibits are shown, and demonstrations are organized in a funny and easy-to-understand manner. As a part of the Faculty, the Department of Electroacoustics participates by teaching its visitors some basic facts about various sound and audio-related phenomena. This paper presents the guided tour the visitors are given when they visit the Department of Electroacoustics. The demonstrations include room modes in a rectangular room, acoustic levitation achieved by an ultrasonic standing wave, and an ultrasonic surgical blade usually used in neurosurgery. Different room acoustical conditions are demonstrated by visiting a rather reverberant classroom, the anechoic chamber, and the acoustically treated listening room. The listening room is also used for demonstrating the (over)exposure to noise and the harm that comes from it, as well as for showing the basics of digital audio processing. Spatial sound is demonstrated by listening to binaural recordings of moving sources. A simple hearing test lets the visitors find the highest frequency of their hearing range. Shepard tones are demonstrated as an example of a sound illusion. The paper gives a detailed description of each demonstration, with the background story and the key pieces of equipment required to make the demonstrations work.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA