Will537 recording guide / 01
Fix your vocals
with EQ.
A practical starting point for artists recording themselves. Learn where mud, boxiness, harshness, sibilance, presence, and air usually live—then make decisions with your ears.
What EQ actually does
EQ changes the balance of frequencies in a recording. On vocals, the goal is usually to remove distractions, create room inside the beat, and help every word translate without making the voice sound unnatural.
Start by lowering or removing a problem instead of automatically boosting something else. Make the move, match the output level, and bypass the EQ. If “better” only means “louder,” the decision is not finished.
Frequency map
Where to listen first
Sweep slowly, keep the beat playing, and use small moves. Most corrections should be felt as much as heard.
60–100 Hz
Remove rumble
Use a high-pass filter to clear air-conditioning noise, footsteps, and unnecessary lows. Raise it slowly and stop before the voice loses weight.
200–500 Hz
Control mud
Too much energy here can make a vocal feel cloudy over the beat. Try a wide, gentle cut and judge it while the instrumental is playing.
400–800 Hz
Reduce boxiness
Small rooms often leave a cardboard or boxed-in tone in this area. Sweep carefully, then make the smallest cut that solves the problem.
800 Hz–1.5 kHz
Watch the nasal tone
A buildup can make the vocal sound pinched or telephone-like. Do not remove this range automatically—some voices need its character.
2–5 kHz
Balance presence and harshness
This range helps words speak clearly, but too much becomes tiring. Cut an irritating peak or add a small boost only if the vocal stays buried.
5–9 kHz
Tame “S” sounds
Use a de-esser or dynamic EQ so the correction happens only when the consonants get sharp. A permanent deep cut can make the vocal sound dull.
10–16 kHz
Add air last
A gentle high shelf can open a clean recording. If the microphone or room already sounds brittle, boosting air will exaggerate the problem.
Will537 moves
Start the high-pass filter around 80 Hz.
Use 80 Hz as a starting point to remove rumble and lows the vocal does not need. Move it while listening to the whole record, then back it down if the voice starts losing weight or authority.
Sweep 300–500 Hz, then make the cut musical.
Boost a band temporarily and sweep through the low mids until the annoying tone jumps out. Turn that boost into a cut, then open the bandwidth a little so the correction blends naturally instead of leaving a narrow hole. Bypass it in the full mix and stop as soon as the vocal clears up.
Boost or cut 3–5 kHz according to the vocal.
Use a broad, gentle boost when the words need more presence over the beat. Cut an irritating peak when the vocal sounds aggressive, piercing, or fights the snare and instruments. Keep checking the consonants—too much energy here can make T and S sounds bite.
A clean EQ workflow
- 01
Record clean
Stay a consistent distance from the microphone and keep the loudest peaks safely below clipping.
- 02
Listen in the beat
Decide what is actually stopping the words from sitting correctly.
- 03
Filter only what is unnecessary
Raise the high-pass filter until it begins thinning the voice, then back it down.
- 04
Make one correction at a time
Try a one-to-three-decibel cut before reaching for an extreme move.
- 05
Use dynamic control when needed
A de-esser or dynamic EQ can catch harsh moments without darkening the entire performance.
- 06
Level-match and bypass
Compare at equal loudness and keep the change only when it works in the full record.
Five mistakes to avoid
- 01EQing the vocal in solo and never checking it against the beat.
- 02Boosting the top end to fix mud instead of removing the muddy buildup.
- 03Making deep, narrow cuts everywhere because the spectrum looks uneven.
- 04Copying another artist’s frequencies without listening to the actual recording.
- 05Ignoring the room, microphone position, and performance—the EQ cannot fully repair a bad recording.
Useful starting chain
Corrective EQ → de-esser → compression → tone EQ → delay/reverb sends
This is a starting order, not a rule. Change it when the record asks for something different.
Record it clean. Make it sound like a record.