From the course: Audio Foundations: EQ and Filters

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Shelving filters

Shelving filters

From the course: Audio Foundations: EQ and Filters

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Shelving filters

If you've ever used the EQ or tone control in your car stereo, you've most likely experienced a shelving filter. Unlike a parametric filter, a shelving filter is designed to boost or cut the signal at the target frequency and continue that boost or cut into lower or higher frequencies past the target. A shelving filter gets its name from the distinct shelf shape it forms in the EQ's frequency graph. Shelving filters come in two distinct flavors: high shelf and low shelf. With high-shelf filters, the frequencies above the target frequency are boosted or cut uniformly through the top end of the EQ. With low-shelf filters, the frequencies below the target frequency are boosted or cut uniformly through the low end of the EQ. Let's hear some shelving filters in action. First, listen to this parametric filter as I boost 6 dB at 6K. (music playing) Now listen as I switch the parametric filter to a high-shelf filter and perform the same 6 dB boost. (music playing) Notice that the high-shelf…

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