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--- en:wiki:anhang:glossar:allison-effekt [27/06/2016 01:43] – [Allison-Effekt] hamish
+++ en:wiki:anhang:glossar:allison-effekt [27/06/2016 01:45] – [Allison-Effect] hamish
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-At a distance of 1/4 wavelength (λ/4) of the the loudspeaker from a reflective surface, the sound travels 1/4 wavelength to the surface, another 1/4 wavelength back, for a round trip when it meets the loudspeaker again of 1/2 wavelength. The reflected sound and the sound emitted by the loudspeaker are 1/2 a wavelegth out of phase when they meet, (180 degress out of phase) resulting in theoretically complete cancellation.
+At a distance of 1/4 wavelength (λ/4) of the the loudspeaker from a reflective surface, the sound travels 1/4 wavelength to the surface, another 1/4 wavelength back, for a round trip when it meets the loudspeaker again of 1/2 wavelength. The reflected sound and the sound emitted by the loudspeaker are 1/2 a wavelength out of phase when they meet, (180 degress out of phase) resulting in theoretically complete cancellation.