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Audio Technology > Diffraction
The following information is about Diffraction.
Diffraction Defined
When a sound wave from a loudspeaker reaches an edge of the speaker cabinet, it creates a new source of sound that appears to emanate from the edge. This is called edge diffraction. Diffraction will occur any time a wave encounters an obstacle, or abrupt change in a surface. An animated cartoon (107 kb) shows a blue wave emanating from a dome tweeter that diffracts first from the rim of the tweeter as a green wave, and then from the cabinet edge as a red wave. Rounding the corners of a speaker cabinet will reduce, but not eliminate, diffraction. See the section on loudspeaker construction, for more discussion on this topic.
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Off-site Diffraction Links, User Submitted
The following links have been collected through user bookmark submission in the Diffraction category. Please note, because these resources are off-site we cannot guarantee the accuracy or quality of any information.
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- Canon EOS 500D Review - includes Diffraction Limited Aperture information in sensor comparison table: Canon DSLR sensor comparisons. See Diffraction Limited Aperture (DLA) column in the table.
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- Reflection, Refraction, and Diffraction: Note page and tutorials for Reflection, Refraction, and Diffraction
- Diffraction - Wikipedia, the free encyclopedia
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