20.500.12556/RUL-179022 Comparison of unity and FMOD libraries for spatial audio localization in virtual reality Spatial audio is central to immersion and situational awareness in virtual reality (VR), but the performance diferences between diferent audio engines have not been suiciently explored. This study compares Unity’s integrated spatial audio system and the FMOD engine in a controlled VR sound localisation task. Thirty volunteers completed three levels of 16 trials each while wearing a head-mounted display (Oculus Quest). They were randomly assigned to one of the two systems and asked to identify the direction of an active loudspeaker among several virtual sources. We measured localisation accuracy, reaction time, spatial distance error and cumulative head rotation; learning efects were assessed by comparing the irst and third stages. Participants using FMOD achieved slightly higher accuracy (93% vs 87% overall) and turned their heads less, suggesting that FMOD made it easier for users to localise sounds in space, while Unity users showed greater variability and a slightly greater learning gain. About two-thirds of participants improved their accuracy over time, but there were signiicant individual diferences. These results suggest that both engines perform similarly well on basic localisation tasks, although FMOD has slight advantages in spatial accuracy. The work highlights the importance of evaluating spatial audio engines in user-centred studies and emphasises the need to consider personal factors and task complexity in future research. virtual reality spatial audio sound localization unity FMOD user experience virtualna resničnost prostorski zvok lokalizacija zvoka Unity FMOD uporabniška izkušnja true false true Angleški jezik Slovenski jezik Neznano 2026-02-03 12:09:53 2026-02-03 12:09:59 2026-02-04 04:36:58 0000-00-00 00:00:00 2025 0 0 Str. 88-96 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 004.946 10.26493/978-961-293-559-7.8 267115011 266380291 https://doi.org/10.26493/978-961-293-559-7.8 0 82506013-00f1-11f1-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=227102 RAZ_Leskovec_Gasper_2025.pdf RAZ_Leskovec_Gasper_2025.pdf 1 B960BA7838174E8105626CF7D0EC6EC9 b38b2cda5f170693d58d4c0a9eb2e9da987c906d3c30a9e72b45d675c6e1ff21 cec272ec-00f0-11f1-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=227101 Fakulteta za elektrotehniko 0 0 0