Instead of a simpler EQ approach, where one would attempt to make a signal more present by either adding high frequencies or cutting low frequencies, Catherine Marks adopts a different method using parallel EQ. She duplicates the dull-sounding drum loop onto a new track, applies EQ there (primarily high-pass filtering), and then blends this modified signal back with the original sound. This technique allows her to brighten the loop, enhance its character and crunchiness, and create space for the body of the live drums, all while preserving some of the warmth from the original loop sound.
