A signal filter which would be installed in a customer premises ADSL modem (ATU-R), which would not modify the low frequencies present in its input signal (the POTS transmission is sent unmodified to a phone), but does prevent the high frequency components (data) from reaching a customer's telephone. See High-Pass Filter.
A circuit designed to pass signals of low frequency while attenuating those of higher frequency.
A spatial-frequency filter which suppresses the high-frequency contrast variations in an image, and enhances the broad variations.
A type of filter that allows low-frequencies through while reducing or eliminating high-frequencies. Lumen: A unit of measurement of the rate at which light is emitted from a source.
A filter that passes a majority of the low frequencies on to the next circuit and rejects, or attenuates, the higher frequencies. Also called a high-frequency discriminator.
A filter that allows low frequencies through, but eliminates high frequency components.
A circuit that removes midrange and treble frequencies from an audio signal. Also called a "high-cut filter."
Unlike a crossover network, filters allow some frequencies to pass while simply blocking others. As the name implies, a low-pass filter allows the low frequencies to pass to the appropriate driver. In better car stereo systems, separate amplifiers may be used for each type of speaker driver, so a low pass filter would be used to send signals to the amplifier that drives the woofers or subwoofer.
a filter that passes low frequency signals and selectively attenuates higher frequency signals
an electronic filter that allows low frequencies to pass through, but attenuates high frequencies
A filter designed to pass low frequencies and reject high frequencies.
This filter passes all frequencies below and rejects all frequencies above a specified CORNER FREQUENCY.
A signal filter which passes all frequencies below a certain frequency, and attenuates all higher frequencies.
A filter having a passband extending from DC (zero Hz) to some finite cut-off frequency (not infinite).
A low-pass filter removes frequencies above the crossover point, while allowing "lows" to pass on to the speakers (typically subwoofers).
A spatial filter that attenuates an image's high-frequency detail or accentuates the low-frequency detail. Contrast with high-pass filter, median filter.
A filter whose transmission band extends from dc to an upper cutoff frequency.
Within an audio crossover network, the electronic or passive circuitry that allows the low frequencies to go to a speaker system or amplifier. See also High-pass filter.
An electric circuit designed to pass only low frequencies. See Band-pass and High-pass filters.
A circuit that allows low frequencies to pass but rolls off the high frequencies. Most subwoofers have low-pass filters built in and many surround sound decoders have subwoofer outputs that have been low-pass filtered.
A type of Filter used to eliminate high-range frequencies resulting in a rounder sound.
A low-pass filter is a device that cuts frequencies off above a certain point and allows all other frequencies to pass.
A filter blocked at higher wavelengths, with a cutoff wavelength in the passband of the detector that passes all wavelengths shorter than the cutoff wavelength.
A filter designed to pass frequencies below a specified frequency level and simultaneously attenuating frequencies above the specified level. The result of using a low pass filter is that high frequencies are cut out.
Also high-pass filter. Filters which allow certain frequencies to pass, but 'cutoff' unwanted frequencies. Used in music computers to reduce unnecessary frequency analysis.
The characteristic of a certain type of filter whereby lower frequencies are passed and higher frequencies are rejected. A filter designed to pass all frequencies below a given cutoff frequency.
a filter that allows signals below the cutoff frequency to pass through and attenuates signals above the cutoff frequency.
A special circuit used in a variety of audio systems, including microphones and mixers, that blocks high frequencies.rs
The actual amount of attenuation for each frequency varies from filter to filter. It is sometimes called a high-cut filter, or treble cut filter when used in audio applications.