Descript's Low Shelf EQ is an equalizer that lets you boost or cut low-end frequencies in your audio. It provides a simple way to shape your sound quickly—tame a boomy voice by cutting the low frequencies or adding low-end power with a low-shelf boost. The effect comes with several presets to choose from, so you can try out different settings to get the desired result. You can apply the effect from the Audio Effects section of the Layer panel.