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| RT60 Efterklangstid× | Akustisk strålesporing× | |
|---|---|---|
| Fagområde | Akustik | Akustik |
| Familie | Process / pipeline | Process / pipeline |
| Oprindelsesår≠ | 1900 | 1979 |
| Ophavsperson≠ | Wallace Clement Sabine | James Allen, David Berkley |
| Type≠ | Room acoustic descriptor | Computational room acoustics method |
| Oprindelig kilde≠ | Sabine, W. C. (1900). Collected Papers on Acoustics. Dover Publications. link ↗ | Allen, J. B., & Berkley, D. A. (1979). Image method for efficiently simulating small-room acoustics. Journal of the Acoustical Society of America, 65(4), 943–950. DOI ↗ |
| Aliasser≠ | RT60, reverberation time, decay time | ray tracing, geometric acoustics, image source method, sound ray propagation |
| Relaterede | 5 | 5 |
| Resumé≠ | 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. | Acoustic ray tracing is a computational technique for predicting sound propagation in rooms by treating acoustic energy as rays that reflect specularly off surfaces. Formalized by Allen and Berkley in 1979 via the image source method, ray tracing is one of the most computationally efficient methods for room acoustic simulation, especially for early and mid-reflections. It is widely used in audio engineering, architectural acoustics, and interactive spatial audio for virtual environments. |
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