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Durham School of Architectural Engineering and Construction: Faculty Publications
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Full-Text Articles in Architecture
Objective And Subjective Evaluation Of The Use Of Directional Sound Sources In Auralizations, Lily M. Wang, Michelle C Vigeant
Objective And Subjective Evaluation Of The Use Of Directional Sound Sources In Auralizations, Lily M. Wang, Michelle C Vigeant
Durham School of Architectural Engineering and Construction: Faculty Publications
Omni-directional sources are often used in room acoustic computer simulations, as opposed to directional sources, since measured directivity data are quite limited and difficult to obtain. The purpose of this study is to investigate the objective and subjective significance of adding more complex directivity to the sources used in computer simulations and auralizations. A simple hall was used as the modelled space in the software program ODEON. Three source positions on stage and three receiver audience positions were chosen. Impulse responses (IRs) were calculated for the nine source/receiver combinations, using (a) an omni-directional source, (b) a highly directional source beaming …
Interactions Of Model Detail Level And Scattering Coefficients In Room Acoustic Computer Simulation, Lily M. Wang, Jonathan Rathsam, Steven Ryherd
Interactions Of Model Detail Level And Scattering Coefficients In Room Acoustic Computer Simulation, Lily M. Wang, Jonathan Rathsam, Steven Ryherd
Durham School of Architectural Engineering and Construction: Faculty Publications
A previous study by the author showed that varying the geometric detail level across a normal range for room acoustic computer modeling has little effect on the results of those computer simulations, if major surfaces in the hall are still constructed accurately. Scattering coefficients were kept constant across all detail levels. If one were using lower levels of detail, though, one might assign different material scattering coefficients to compensate for the less mixing geometry. To study the interaction between model detail level and scattering coefficient selection, three performance spaces in Omaha, Nebraska have been modeled in ODEON at varying levels …