Procjena točnosti lokalizacije izvora govora i glazbe u zvučnim okolinama sintetiziranim pomoću sustava Ambisonics

master's thesis

• Title (english): The assessment of localization accuracy for speech and music sources in sound environments synthesized in Ambisonics system
• Author: Frane Anzulović
• Mentor: Marko Horvat (mentor)
• Committee member: Marko Horvat (predsjednik povjerenstva)
• Committee member: Kristian Jambrošić (član povjerenstva)
• Committee member: Siniša Fajt (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2019-09-26, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Ambisonics sustavi daju nam jednostavan način da reprezentiramo fizičke osobine zvučnih polja, bilo to stvarnih ili sintetičkih, te služe kao dobar alat za njihovu poharanu i obradu. Korištenjem teorijske osnove iznesene u radu razvili smo aplikaciju koja služi za generiranje koder i dekoder matrica ambisonics sustava proizvoljnog reda i dimenzija. Provedena su slušna ispitivanja korištenjem aplikacije, te dolazimo do nekoliko zaključka. Prvo je da Ambisonics sustavi nižih redova imaju puno manje lokalizacijske mogućnosti od viših. Drugo je da bez obzira na njegove prednosti kao format za stvaranje, obradu i prijenos složenih akustičkih scena Ambisonics ima velike nedostatke što se tiče mogućnosti precizne lokalizacije zvučnih izvora.

Abstract (english)

Ambisonics systems are a simple way to represent the physical attributes of sound fields, albeit real or synthetic ones, and have use as tool for their storage and processing. Using the theoretical base presented in the paper we have developed an application for generating encoding and decoding matrices for ambisonic systems of arbitrary dimensions and order. Listening tests were conducted using said application and we have come to a few assessments. Firstly, lower order ambisonic systems display very poor localization properties. Secondly, no matter its use as a format for generating, processing and transmitting complex sound scenes, ambisonics systems have large faults when assessing localization of sound sources.

• Keywords: Ambisonics; Ambisonics višeg reda; B-format; slušna ispitivanja; sinteza virtualnog zvučnog polja
• Keywords (english): Ambisonics; Higher-order Ambisonics; B-format; listening tests; sound field syntheses
• Language: croatian
• URN:NBN: urn:nbn:hr:168:096265
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2020-01-07 16:05:40