Dictionary Home » Computer Definitions » low-pass filter

low-pass filter - technical definition

A device that passes all signals below a designated frequency (electrical) or wavelength (optical) band, but absorbs, attenuates, blocks, rejects, or removes all other signals. See also absorption, attenuation, band, band-pass filter, electrical, frequency, high-pass filter, optical, signal, and wavelength.

See low-pass filter in Computer


A filter that blocks high frequencies and allows lower frequencies to pass through. Such filters are used in devices such as POTS splitters that direct phone and DSL signals to different lines. Contrast with high-pass filter.



Learn more about low-pass filter

link/cite print suggestion box