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| Temps de reverberació RT60× | BEM Acoustics× | |
|---|---|---|
| Camp | Acústica | Acústica |
| Família | Process / pipeline | Process / pipeline |
| Any d'origen≠ | 1900 | 1971 |
| Autor original≠ | Wallace Clement Sabine | Carlos Brebbia, Robert Butterfield |
| Tipus≠ | Room acoustic descriptor | Computational simulation for acoustics |
| Font seminal≠ | Sabine, W. C. (1900). Collected Papers on Acoustics. Dover Publications. link ↗ | Burton, A. J., & Miller, G. F. (1971). The application of integral equation methods to the numerical solution of some exterior boundary-value problems. Proceedings of the Royal Society A, 323(1553), 201–210. DOI ↗ |
| Àlies≠ | RT60, reverberation time, decay time | BEM, boundary element method, indirect BEM, direct BEM |
| Relacionats | 5 | 5 |
| Resum≠ | RT60 (reverberation time) is the duration required for sound energy in a room to decay by 60 decibels after the source stops. Pioneered by Wallace Clement Sabine in 1900, RT60 is the most widely used single-number descriptor of room acoustic properties. It reflects how much sound is absorbed versus reflected by room surfaces and directly affects speech intelligibility, music clarity, and acoustic comfort. | The Boundary Element Method (BEM) is a numerical technique for solving acoustic wave equations in complex geometries. Unlike finite element methods (FEM) that mesh entire volumes, BEM discretizes only the acoustic boundaries (surfaces), reducing computational cost and memory. First applied to acoustics by Burton and Miller in 1971, BEM is widely used for predicting room acoustics, exterior noise radiation, and acoustic scattering without the need for volumetric meshing. |
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