Lokaliziranje zvučnih izvora u virtualnom prostoru pomoću binauralnog i ambisonics sustava

undergraduate thesis

• Title (english): Localization of sound sources in virtual spaces with binaural and ambisonic systems
• Author: Frane Anzulović
• Mentor: Kristian Jambrošić (mentor)
• Committee member: Kristian Jambrošić (predsjednik povjerenstva)
• Committee member: Antonio Petošić (član povjerenstva)
• Committee member: Siniša Fajt (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2015-07-13, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Cilj: Uspoređivanje lokacijskih mogućnosti između ambisonics i binauralnog sustava u virtualnom okruženju napravljenog pomoću Odeon auralizacijskog paketa.
Metoda: Ispitivanje se sastojalo od 3 dijela u kojima su se ispitivale razne metode lokalizacije zvučnih izvora korištenjem ambisonics i binauralnog sustava. Prvi dio se odnosio na općenitu prostornu lokalizaciju, dok su se druga dva dijela fokusirala na precizniju lokalizaciju u horizontalnoj i vertikalnoj ravnini. Ambisonics sustav se sastojao od 16 zvučnika namještenih u zvučno izoliranoj prostoriji dimenzija 4x5x3,2 m. U ispitivanju su se koristili signali različitih spektralnih sastava.
Zaključak: Rezultati su pokazali značaju prednost ambisonics sustava u većini slučajeva, dok su rezultati binauralnog sustava puno više varirali što se može pripisivati razlikama između pojedinih HRTF ispitanika.

Abstract (english)

Aim: To conduct a comparison of sound localization capabilities between ambisonics and binaural sound reproduction systems in a virtual environment created in Odeon Room Acoustics Software.
Methodology: The research was consisted of three distinct stages in which different sound source localization techniques were examined using ambisonics and binaural sound systems. The first stage was focused on general sound localization, while the other two stages focused on more precise sound localization in vertical and horizontal planes respectively. The ambisonics system was comprised of 16 loudspeakers setup in an isolated environment in a room 4x5x3,2 m in size. The study used test signals of various spectral compositions.
Conclusion: In most cases the results showed a distinct advantage of ambisonics systems in sound source localization. The findings were much more varied for the binaural system, which can be attributed to the differences between the HRTF of the test subjects.

• Keywords: Lokalizacija zvuka; virtualna zvučna polja; ambisonics; binauralna zvučna reprodukcija
• Keywords (english): Sound source localisation; virtual sound fields; ambisonics; binaural sound reproduction
• Language: croatian
• URN:NBN: urn:nbn:hr:168:269869
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-02-06 07:37:43