Conference_programme: 18.8 - Recent trends in numerical modeling: protocols and reliability
Lecture: Objective and perceptive evaluations of high-resolution room acoustic simulations and auralizations
Author(s): Katz Brian Fg, Postma Barteld, Thery David, Poirier-Quinot David, Luizard Paul
Summary:
Advances in computational power have opened the doors to higher resolution acoustic modelling for large-scale spaces where acoustics is crucial and spaces are increasingly complicated. As such, auralizations are becoming more prevalent in architectural acoustics and virtual reality. However, there have been few studies examining the perceptual quality achievable by room acoustic simulations and auralizations. This paper presents a summary of several recent studies involving the evaluation, objectively with regards to acoustic parameters, and perceptively through listening tests, of room acoustic simulations where subjective equivalency to reality was the driving force. Presented studies involve the elaboration of a calibration method for simulations, inclusion of dynamic source directivity characteristics, and the assessment of various simulation methodologies in the context of coupled volumes. These studies were carried out using existing spaces in order to have a real reference. Room types included a simplified scale model, a small ornate 570 seat theatre, a 22200 m3 church, and a 84000 m3 cathedral. Results show that state-of-the-art high performance ray/cone tracing simulations are capable of providing objective and perceptual results, including spatial parameters, comparable to reference measurements. However, not all algorithms or alternate simulation methodologies provided equivalent results.
Corresponding author
Name: Dr Brian Katz
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Country: France
