A shelving filter which boosts or attenuates the high end of the frequency spectrum is known as a ‘high shelf’. Whereas a shelving filter which boosts or attenuates the low end of the frequency spectrum is known as a ‘low shelf’.

What is low shelf vs high shelf?

The major difference between low and high shelf filters is the name: low shelf filters affect (boost or cut) frequencies at the low-end of the audio signal while high shelf filters affect (boost or cut) frequencies at the high-end of the audio signal.

What is low shelf in EQ?

Descript’s Low Shelf EQ (equalizer) lets you boost or cut low-end frequencies in your audio. The Low Shelf EQ provides a simple way to quickly shape your sound – tame a boomy voice by cutting the low frequencies, or add some low-end power with a low shelf boost.