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Entries found for search: wavelength

wavelength response : The distance spanned by one complete cycle of a sine wave, or the fundamental frequency of any complex musical tone, as it travels through an elastic medium, e.g., air, or as it is recorded on tape, film, or vinyl disc.

quarter-wavelength rule : If a wall is a node, then the nearest other node at any frequency will be 1/2(wavelength) away from the wall. Given this, the antinode is midway between those two points, or 1/4(wavelength) away from the wall, for any given frequency. So, for example, if you want to filter out 60Hz, divide 18 (the wavelength of 60Hz) by 4 = 46" and hang a thin layer of frictional material (such as fiberglass or acoustic foam) at that distance from the wall(s) and floor and ceiling.

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