A master thesis from Aalborg University
ScatAR_WGW: Implementation and Evaluation of the Waveguide Web in an Application for Artificial Reverberation in a Virtual Environment
Author(s)
Term
4. Term
Education
Publication year
2018
Submitted on
2018-05-31
Pages
62 pages
Abstract
Præcise algoritmer til kunstig rumklang er nødvendige for autentiske oplevelser i Virtual Reality (VR) eller Augmented Reality (AR) oplevelser. Et vigtigt aspekt inden for realistisk lyd i virtuelle miljøer er akustisk modellering af rumklang. Scattering Delay Networks (SDN) og Waveguide Web (WGW) er eksempler på nye og alsidige algoritmer. Denne rapport præsenterer implementering af WGW i en nuværende AR applikation, der benytter SDN genereret rumklang. Applikationen samler information fra et givet miljø baseret på lydkildens og lytterens positioner. En evaluering udføres i et virtuelt miljø, og kan konkludere at der er en betydelig forskel mellem WGW og SDN, med en betydelig præference for SDN. WGW viser sig at være for kompliceret til at kunne køre i real-time applikationer, men opfordrer til nye interessante muligheder inden for akustisk modellering af udendørs områder.
Accurate reverberation algorithms are required for authentic experience in virtual or augmented reality experiences. A key element of immersive sound in virtual environments are the room acoustical modeling. Recent efficient and versatile algorithms has been proposed, namely the Scattering Delay Networks (SDN) and the Waveguide Web (WGW). This work presents the implementation of WGW in a current augmented reality application facilitating SDN reverberation. The application obtains informations about a given environment based on the positions of the sound source and listener. An evaluation is performed in a virtual environment to conclude a significant perceptual difference between WGW and SDN, with a significant preference to SDN over WGW. WGW is deemed too computational for real-time applications, but poses for a wide range of interesting possibilities for future work in the domain of acoustical modeling of outdoor spaces.
Keywords
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