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Full-Text Articles in Architecture
Scattered Responses From Suspended Reflector Panels With Rounded Edges, Jonathan Rathsam, Lily M. Wang
Scattered Responses From Suspended Reflector Panels With Rounded Edges, Jonathan Rathsam, Lily M. Wang
Lily M Wang
Sound reflections from most finite surfaces, such as overhead reflector panels, include a component known as edge diffraction. Edge diffraction is the scattered energy required to maintain a continuous sound field despite the discontinuity in acoustical impedance presented by the scatterer. Edge diffraction can interfere with primary scattered energy to produce comb filtering at receiver locations. Several decades ago, the effect of changing the edge profile of loudspeaker boxes was investigated with the goal of producing a smoother frequency response. By rounding the edges of loudspeaker boxes, the edge diffraction could be decreased noticeably [H. F. Olson, J. Aud. Eng. …
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
Lily M Wang
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 …