A low-pass filter is a filter that passes signals with a frequency lower than a certain cutoff frequency and attenuates signals with frequencies higher than the cutoff frequency. The amount of attenuation for each frequency depends on the filter design. The filter is sometimes called a high-cut filter, or treble cut filter in audio applications. A...
(from the article `sound`) ...of the duct or by the addition of a side branch reflects undesirable frequencies, as determined by the size and shape of the variation. A region ...
filter having a single pass-band extending from zero frequency to a specified cut-off frequencya filter having a single pass band below a cut-off frequency and a stop band for higher frequencies
A device that rejects signal above a certain frequency and passes signals that are lower in frequency.
A device or material with the opposite effect from a high-pass filter; most tissues act as low-pass filters of ultrasound signals. ... (05 Mar 2000) ... 
Type: Term Definitions: 1. a device or material with the opposite effect from a high-pass filter; most tissues act as low-pass filters of ultrasound signals.
This is a type of filter that attenuates frequencies above a cutoff frequency. i.e. it allows low frequencies to pass through unchanged.
noun a filter that passes frequencies below a certain value and attenuates frequencies above that value
A network of components which attenuate all frequencies above a predetermined frequency selected by