high-pass filter
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filter that passes signals with a frequency higher than a certain cutoff frequency, and attenuates signals with lower frequencies
Wikidata facts
- Subclass of
- electronic filter
Show 3 more facts
- short name
- ФВЧ
- Commons category
- Highpass filters
- opposite of
- low-pass filter
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Encyclopedic overview
Ideal high-pass filter frequency response
A high-pass filter (HPF) is an electronic filter that passes signals with a frequency higher than a certain cutoff frequency and attenuates signals with frequencies lower than the cutoff frequency. The amount of attenuation for each frequency depends on the filter design. A high-pass filter is usually modeled as a linear time-invariant system. It is sometimes called a low-cut filter or bass-cut filter in the context of audio engineering. High-pass filters have many uses, such as blocking DC from circuitry sensitive to non-zero average voltages or radio frequency devices. They can also be used in conjunction with a low-pass filter to produce a band-pass filter.
Excerpted from Wikipedia’s “high-pass filter” article, available under the CC BY-SA 4.0 licence.