The Short Answer
To mix vocals: set gain to -18 dBFS, apply a high-pass filter at 80–100 Hz, compress with a 3:1 ratio (attack 10–15 ms, release 60–80 ms), de-ess at 5–8 kHz, then add EQ presence boost at 2–5 kHz and air shelf at 10 kHz. Route reverb and delay to sends, not inserts.
Before You Mix: Gain Staging and Cleanup
A clean input signal prevents every downstream processor from compensating for problems that should not exist. Do this before touching EQ or compression.
- Set input gain: adjust the clip gain (not the fader) so the average vocal level reads around -18 dBFS RMS. Peaks can reach -10 dBFS — that headroom is intentional.
- High-pass filter: apply a 24 dB/oct HPF at 80 Hz. Vocals contain no useful energy below this point; cutting it prevents the low end from masking the kick and bass.
- Remove breaths manually: use your DAW's clip gain handles or a gate to pull breath transients down by 10–15 dB rather than cutting them entirely — total removal sounds unnatural.
- Edit clicks and plosives: zoom in on waveforms at the start of words. A sharp-angle transient spike is a click or plosive. Fade the front 5–10 ms of the clip to remove it.
- Tune the vocal (optional): apply pitch correction — Melodyne for natural results, Auto-Tune for the effect. Tune before any time-based processing.
Vocal EQ Cheat Sheet
Use TDR Nova (free, dynamic parametric) or ReaEQ (free with REAPER) as your primary EQ. Apply subtractive EQ first on one instance, additive EQ on a second instance after compression. These values are starting points — use your ears and a spectrum analyzer.
| Frequency | Move | Amount | Purpose |
|---|---|---|---|
| 80–100 Hz | HPF cut | Full cut (filter) | Removes rumble, mic stand vibration, HVAC noise |
| 200–400 Hz | Narrow cut | -2 to -4 dB | Reduces mud and boxy buildup — most vocals need this |
| 800 Hz–1 kHz | Narrow notch | -1 to -3 dB | Fixes nasal or honky tone if present; skip if the vocal is clean |
| 2–5 kHz | Broad boost | +1 to +3 dB | Adds presence and intelligibility — makes the vocal cut through |
| 8–12 kHz | High shelf boost | +1 to +2 dB | Air and sparkle; use a shelf, not a peak, for a natural sound |
Rule: subtractive EQ (cuts) before the compressor to surgically remove problem frequencies; additive EQ (boosts) after the compressor to shape the final tone. Never boost and cut at the same frequency band on the same EQ instance.
Compression Settings for Vocals
Compression controls the dynamic range between the loudest and quietest syllables. Free options: Analog Obsession LALA (optical, smooth for lead vocals), DC1A by Klanghelm (simple, excellent for background vocals), TDR Kotelnikov (transparent for gentle glue). These are the target parameters per vocal role.
| Parameter | Lead Vocal | Background Vocal | Rap Vocal |
|---|---|---|---|
| Threshold | Set so GR meter reads -4 to -6 dB on peaks | -2 to -4 dB GR on peaks | -6 to -8 dB GR — rap dynamics are wider |
| Ratio | 3:1 | 2:1 | 4:1 to 6:1 |
| Attack | 10–15 ms (lets transient through) | 15–25 ms | 5–10 ms (tighter, punchy) |
| Release | 60–80 ms (auto or program-dependent) | 80–120 ms | 40–60 ms |
| Makeup gain | +2 to +4 dB to compensate GR | +1 to +3 dB | +3 to +5 dB |
| GR target | 3–6 dB on the loudest phrases | 1–3 dB | 5–8 dB |
A second compressor in series (serial compression) is common for lead vocals: the first compressor catches big peaks (higher threshold, higher ratio), the second compressor adds consistent density (lower threshold, lower ratio, 2:1). Each does less work — the result sounds more transparent than one compressor doing all the heavy lifting.
Reverb and Delay on Vocals
Route reverb and delay to auxiliary send channels — never insert them directly on the vocal track. This lets you control the wet level independently and apply EQ or compression to the return, which is standard professional practice.
- Plate reverb (lead vocal) — Decay 1.2–1.8 s. Pre-delay 20–35 ms to preserve attack clarity. Wet level on the send return: -12 to -18 dBFS. Free plugin: TAL-Reverb-4 (plate mode) or Valhalla Supermassive (Gemini or Hydra algorithm). High-pass the reverb return at 200 Hz and high-shelf cut above 8 kHz to keep it sitting behind the dry signal.
- Room reverb (background vocals) — Decay 0.4–0.8 s. Short pre-delay 10–15 ms. Shorter, darker, and quieter than the lead reverb. Keeps background vocals glued without competing for space.
- 1/4-note delay (lead vocal) — Sync the delay time to 1/4 note at your project BPM. Feedback 1–2 repeats. Wet level -18 to -24 dBFS. High-pass at 400 Hz so the echoes only reinforce the midrange. Free plugin: Valhalla Supermassive (delay mode) or any free tempo-sync delay. Low-pass at 6 kHz on the delay return.
- Eighth-note slap delay (rap/pop) — 1/8 note delay, single repeat, very low wet level (-24 dBFS). Adds width and depth without audible echoes. Filter tightly: HPF at 600 Hz, LPF at 4 kHz.
De-Essing: Removing Sibilance
Sibilance — harsh S, SH, and T sounds — lives in the 4–8 kHz range on most vocal microphones. A de-esser is a frequency-selective compressor that only reduces gain when energy in that band exceeds a threshold.
- Target frequency — Sweep a solo band across 4–8 kHz while playing an S-heavy word. The frequency where the harshness peaks is your de-esser center point. Female vocals typically peak at 6–8 kHz; male vocals at 4–6 kHz.
- Threshold setting — Set threshold so the GR meter on the de-esser only moves on S and SH sounds — not on every consonant. Start with -3 dB of GR on the harshest syllables.
- Lisp by Sleepy-Time DSP (free) — A single-knob de-esser with a fixed detection frequency. Extremely easy to use — best for beginners. Effective on female pop vocals.
- Techivation T-De-Esser Free — Dynamic de-esser with adjustable frequency, threshold, and intensity. More surgical than Lisp. Works on both male and female vocals.
- TDR Nova (free, dynamic EQ mode) — Place a dynamic band at 5–7 kHz with a -3 to -5 dB ceiling and a conservative threshold. Acts as a transparent de-esser with full parametric control over the detection range.
The Complete Vocal Processing Chain
Signal chain order determines how each processor interacts with the audio. This is the industry-standard ordering for mixing vocals in a DAW. Each step builds on a cleaner input from the previous.
- 1. Gain staging — Clip gain adjustment to -18 dBFS RMS before any plugins are loaded.
- 2. Noise gate (optional) — Only when the room noise floor is audible between phrases. Attack 1 ms, release 200 ms, threshold just below the softest vocal phrase.
- 3. Subtractive EQ — High-pass at 80–100 Hz, cut 200–400 Hz mud, notch 800 Hz nasal range if needed. TDR Nova or ReaEQ.
- 4. Compression (primary) — 3:1 ratio for lead, attack 10–15 ms, release 60–80 ms, 3–6 dB GR. Analog Obsession LALA or DC1A.
- 5. De-esser — Target 4–8 kHz, -3 dB GR on sibilant transients only. Techivation T-De-Esser Free or TDR Nova dynamic band.
- 6. Additive EQ — Presence boost +1 to +3 dB at 2–5 kHz, air shelf +1 to +2 dB at 10 kHz. Same plugin (TDR Nova) or a separate instance.
- 7. Compression (optional second pass) — Lower ratio 2:1, lower threshold, 1–2 dB GR — adds density without clamping transients.
- 8. Saturation (optional) — Subtle harmonic excitement before sends. Free plugin: IVGI by Klanghelm (tape-style saturation). Drive at 10–20%.
- 9. Reverb send — Aux return with plate reverb, decay 1.2–1.8 s, pre-delay 20–35 ms. HPF the return at 200 Hz.
- 10. Delay send — Aux return with 1/4-note delay, 1–2 repeats. HPF return at 400 Hz, LPF at 6 kHz.
Free Vocal Processing Plugins (2026)
All plugins listed are genuinely free — no time limit, no disabled features, no watermark.
- TDR Nova (TDR) — Parametric and dynamic EQ. The free tier covers four bands and is sufficient for complete vocal EQ including de-essing. Works on Windows and macOS.
- Analog Obsession LALA — Optical compressor emulation based on the LA-2A circuit. Smooth gain reduction with minimal attack-release knobs — ideal for lead vocals. Free on all platforms.
- DC1A by Klanghelm — Two-knob FET-style compressor. Character switch changes from clean to colored. Best for background vocals and parallel compression on busses.
- Valhalla Supermassive — Reverb and delay plugin from Valhalla DSP — professional-grade, permanently free. Use Gemini algorithm for plate, Hydra for long hall. Also covers delay send duties.
- TAL-Reverb-4 (TAL Software) — Plate reverb emulation. Simple interface, dense and smooth. Pre-delay up to 250 ms. Excellent for a classic plate sound on lead vocals.
- Techivation T-De-Esser Free — Adjustable frequency targeting, threshold, and intensity. The most capable free de-esser. Windows and macOS, VST3 and AU.
- IVGI by Klanghelm — Tape-saturation plugin with drive and mix controls. Adds harmonic density to thin or digitally clean vocal recordings. Free for all platforms.
- ReaPlugs (Cockos) — The standalone version of REAPER's plugin suite. ReaEQ, ReaComp, ReaDelay, ReaGate — all free, all reliable, all lightweight. Available outside of REAPER.
Find all listed free plugins and thousands more vocal processing tools on Plugg Supply — curated, verified, and delivered instantly.
Browse Free DownloadsFrequently Asked Questions
- How loud should vocals be in a mix?
- Lead vocals should sit at roughly -10 to -8 dBFS peak in a full mix, with the vocal fader level set so the vocal feels forward without masking other elements. A common starting point: bring the vocal fader up until you can hear it clearly over the full beat, then pull it back 1–2 dB. The vocal compressor should handle consistency so the fader does not need constant automation. Background vocals typically sit 6–8 dB below the lead vocal.
- Should I EQ before or after compression on vocals?
- Use EQ both before and after compression, with different intent. Before compression: apply only subtractive EQ — the high-pass filter at 80–100 Hz and any problem-frequency cuts. This ensures the compressor responds to a cleaner signal without being triggered by rumble or mud. After compression: apply additive EQ — presence boosts at 2–5 kHz and high-shelf air at 10 kHz. Boosting before a compressor would make the compressor clamp down harder on the frequencies you just boosted.
- What compressor ratio should I use for vocals?
- 3:1 is the standard starting ratio for lead vocals. It provides noticeable dynamic control without obvious pumping. Rap vocals with wider dynamic range often use 4:1 to 6:1. Background vocals need less compression — 2:1 at a lower threshold. A ratio above 8:1 is a limiter territory and will make vocals sound unnatural unless that effect is intentional.
- How do I get rid of the harsh S sounds in vocals?
- Sibilance at 4–8 kHz is removed with a de-esser. Set the detection frequency by soloing a narrow band and sweeping it across the 4–8 kHz range while playing a harsh S-heavy section. When you find the peak frequency, place your de-esser there and set the threshold so the GR meter moves only on S and SH sounds — 2–4 dB of reduction is usually enough. Avoid over-de-essing: removing too much energy above 5 kHz makes consonants disappear.
- Should I use reverb on every vocal?
- No. Dry trap and hip-hop vocals often use almost no reverb — a very short room (decay 0.2–0.4 s) or none at all. Pop and R&B lead vocals typically use a plate with 1.2–1.8 s decay. The rule is that reverb should reinforce the vocal in the mix context, not make it sound processed. Always route reverb to a send, apply a high-pass filter at 200 Hz on the return, and keep the return level quieter than you think it needs to be.
- What is the difference between a de-esser and a dynamic EQ?
- Both reduce specific frequencies only when a threshold is exceeded — functionally they are the same tool. A dedicated de-esser like Techivation T-De-Esser Free or Lisp has a simpler interface optimised for sibilance. A dynamic EQ like TDR Nova gives you more control over the detection range and the reduction shape. For most vocal de-essing tasks, a dedicated de-esser is faster; for multiband dynamic control across the full spectrum, a dynamic EQ is more flexible.