Sammenlign metoder
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| Akustisk strålesporing× | Psykoakustisk Maskering× | |
|---|---|---|
| Fagområde | Akustik | Akustik |
| Familie | Process / pipeline | Process / pipeline |
| Oprindelsesår≠ | 1979 | 1961 |
| Ophavsperson≠ | James Allen, David Berkley | Eberhard Zwicker |
| Type≠ | Computational room acoustics method | Perceptual model for audio systems |
| Oprindelig kilde≠ | 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 ↗ | Zwicker, E., & Scharf, B. (1965). Psychoacoustics: Facts and Models. Springer-Verlag. ISBN: 978-3540631644 |
| Aliasser | ray tracing, geometric acoustics, image source method, sound ray propagation | masking, temporal masking, frequency masking, auditory masking |
| Relaterede | 5 | 5 |
| Resumé≠ | 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. | Psychoacoustic masking describes how the human auditory system suppresses the perception of weak sounds in the presence of stronger sounds. Formalized by Eberhard Zwicker in the 1960s, masking is a fundamental phenomenon in hearing and the basis for perceptual audio coding (MP3, AAC, OPUS). Masking occurs both in frequency (spectral masking) and time (temporal masking), and understanding these effects enables efficient audio compression and realistic sound design. |
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