- Tytuł:
- The impact of the sound reflection model on the ray tracing simulation variability
- Autorzy:
-
Binek, Wojciech
Chojak, Aleksandra
Kamisiński, Tadeusz - Powiązania:
- https://bibliotekanauki.pl/articles/2146657.pdf
- Data publikacji:
- 2021
- Wydawca:
- Politechnika Poznańska. Instytut Mechaniki Stosowanej
- Tematy:
-
geometrical acoustics
BRDF
diffuse rain
next event estimation
akustyka geometryczna
estymacja następnego zdarzenia - Opis:
- Geometrical acoustics is the most commonly used method of room acoustics prediction. Its efficiency can be improved by explicit calculation of ray contribution to each receiver during reflection called algebraic reflection. The aim of this research is to analyse the applicability and impact of reflection model choice on algebraic reflection calculation using the ray tracing with next event estimation. The tested reflection models include the specular and Lambert reflection combination and the Phong reflection model. Classical ray tracing algorithm, without algebraic reflections, is used as a reference. Based on simulation results and statistical analysis we conclude that the change of the reflection model significantly affects the acoustics conditions within the simulation changing echograms in early reflections region and the reverberation times. Statistical analysis proved that echograms obtained with the combination of ray tracing with next event estimation and Phong reflection model have lowest simulation to simulation variability.
- Źródło:
-
Vibrations in Physical Systems; 2021, 32, 2; art. no. 2021203
0860-6897 - Pojawia się w:
- Vibrations in Physical Systems
- Dostawca treści:
- Biblioteka Nauki
Artykuł