EQ

The EQ shapes the tone of a recording: more body, less mud, more air. Use it to fix what the phone's microphone and the room did to the sound, before anything else in the chain.

Turns the bottom end up for warmth and weight, or down when a recording sounds boomy. It lifts or lowers everything below LOW FREQ in a gentle slope.

Boosts or cuts a band in the middle, where a voice or guitar sits. Cut it to clear a boxy or muddy sound, boost it to bring a part forward.

Turns up the air and detail above HIGH FREQ, or softens a bright, edgy recording. A small boost often makes a phone recording sound more open.

Sets where the LOW band starts working. Lower it to touch only the deep bass, raise it to warm up the lower mids too.

Picks the frequency MID boosts or cuts. Around 300Hz is where boxiness lives, around 3k is presence and bite.

Sets how wide the MID band is, in octaves. Narrow it to remove one ringing tone, widen it for a broad, musical change.

Sets where the HIGH band starts working. Lower it to brighten the whole top, raise it to add only the airy shimmer.

Removes rumble, handling noise and wind below this frequency. All the way down at 20Hz it is off.

The free sound already sets a good EQ for a voice and an instrument: LOW CUT at 80Hz, MID at -1.5dB around 320Hz to take out boxiness, and HIGH at +2.0dB from 10k for air. If the recording sounds thin, add LOW in small steps up to about +3.0dB. If it sounds harsh, bring HIGH back toward 0.0dB before you reach for anything else.