Formation of Scattering Characteristics for Acoustical Ray Tracing Simulation
Ray tracing simulation of sound field in rooms is a common tool in room acoustic design for predicting impulse response. There are numerous commercial engineering tools utilising ray tracing simulation. A specific problem in the simulation is the modelling of diffuse reflections when contribution of...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2018-07-01
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| Series: | Archives of Acoustics |
| Subjects: | |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/2181 |
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| author | Srđan BOJIČIĆ Dragana ŠUMARAC-PAVLOVIĆ Miomir MIJIĆ |
| author_facet | Srđan BOJIČIĆ Dragana ŠUMARAC-PAVLOVIĆ Miomir MIJIĆ |
| author_sort | Srđan BOJIČIĆ |
| collection | DOAJ |
| description | Ray tracing simulation of sound field in rooms is a common tool in room acoustic design for predicting impulse response. There are numerous commercial engineering tools utilising ray tracing simulation. A specific problem in the simulation is the modelling of diffuse reflections when contribution of individual surface is prevailing. The paper introduces modelling of scattering which is interesting when the whole impulse response of a room is not a goal but contribution of certain surface. The main goal of the project is to shape directivity characteristics of scattered reflection. Also, an innovative approach is suggested for converting the energy histogram information obtained by ray tracing into an “equivalent impulse response”. The proposed algorithm is tested by comparing the results with measurements in a real sound field, realised in a scaled model where a diffusing surface is hardware-implemented. |
| format | Article |
| id | doaj-art-a515dd87a3774c9181a6be5cb3e07dd7 |
| institution | Kabale University |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2018-07-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-a515dd87a3774c9181a6be5cb3e07dd72025-08-20T03:37:05ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2018-07-0143410.24425/aoa.2018.125159Formation of Scattering Characteristics for Acoustical Ray Tracing SimulationSrđan BOJIČIĆ0Dragana ŠUMARAC-PAVLOVIĆ1Miomir MIJIĆ2University of BelgradeUniversity of BelgradeUniversity of BelgradeRay tracing simulation of sound field in rooms is a common tool in room acoustic design for predicting impulse response. There are numerous commercial engineering tools utilising ray tracing simulation. A specific problem in the simulation is the modelling of diffuse reflections when contribution of individual surface is prevailing. The paper introduces modelling of scattering which is interesting when the whole impulse response of a room is not a goal but contribution of certain surface. The main goal of the project is to shape directivity characteristics of scattered reflection. Also, an innovative approach is suggested for converting the energy histogram information obtained by ray tracing into an “equivalent impulse response”. The proposed algorithm is tested by comparing the results with measurements in a real sound field, realised in a scaled model where a diffusing surface is hardware-implemented.https://acoustics.ippt.pan.pl/index.php/aa/article/view/2181diffuse reflectionray tracingroom acousticssecondary sourcescattering pattern |
| spellingShingle | Srđan BOJIČIĆ Dragana ŠUMARAC-PAVLOVIĆ Miomir MIJIĆ Formation of Scattering Characteristics for Acoustical Ray Tracing Simulation Archives of Acoustics diffuse reflection ray tracing room acoustics secondary source scattering pattern |
| title | Formation of Scattering Characteristics for Acoustical Ray Tracing Simulation |
| title_full | Formation of Scattering Characteristics for Acoustical Ray Tracing Simulation |
| title_fullStr | Formation of Scattering Characteristics for Acoustical Ray Tracing Simulation |
| title_full_unstemmed | Formation of Scattering Characteristics for Acoustical Ray Tracing Simulation |
| title_short | Formation of Scattering Characteristics for Acoustical Ray Tracing Simulation |
| title_sort | formation of scattering characteristics for acoustical ray tracing simulation |
| topic | diffuse reflection ray tracing room acoustics secondary source scattering pattern |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/2181 |
| work_keys_str_mv | AT srđanbojicic formationofscatteringcharacteristicsforacousticalraytracingsimulation AT draganasumaracpavlovic formationofscatteringcharacteristicsforacousticalraytracingsimulation AT miomirmijic formationofscatteringcharacteristicsforacousticalraytracingsimulation |