How to Record Adlibs That Actually Add Something
Recording · 4 min read
An adlib needs a job before it needs a take. Decide whether the line is an echo (repeats the lead's last word), an answer (new words in the gap) or texture (a sound, not a word), then record it at 30–40 cm instead of 15–20 cm so it lands in its own plane before you open a plugin.
Adlib mic distance
30–40 CM
Lead at 15–20 cm · same mic, two positions
The 60-second answer
Three roles, three treatments. Echoes: the lead's words repeated, 4–8 dB down, panned 40–60% opposite the last one. Answers: new words in the gaps, 3–6 dB down, panned 20–40%. Texture: breaths, ohs and yeahs, 10–14 dB down, panned 80–100% and buried in effects.
Why most adlibs make a song worse
The usual workflow is to finish the lead, leave the mic where it is, and improvise for twenty minutes. What comes back is thirty clips with no plan, recorded at the same distance and the same energy as the lead, in the same frequency range and the same spot in the room. The ear has no way to tell the main line from the decoration, so it treats all of it as competition. Every adlib you keep should answer one question in one word: what is this for?
The three roles
An echo repeats the last word of a lead line. It reinforces the hook, so it stays close in level, 4–8 dB down. An answer is a new line dropped into the gap between lead phrases, like a second person in the room, so it needs to be nearly as present as the lead but panned off centre. Texture is everything that is not a word: the breath, the ohh, the yeah under the bar. It lives 10–14 dB down and gets the most effects, because it is atmosphere, not information.
The session, step by step
| # | Do this |
|---|---|
| 01 |
Write the adlib list first Print the lyrics and mark each line ECHO, ANSWER or TEXTURE. Ten minutes of writing saves an hour of comping. One word per line |
| 02 |
Set the second mic position Move the singer back to 30–40 cm and add 4–6 dB of preamp gain. Tape the two spots on the floor. 35 cm · +5 dB preamp |
| 03 |
Track the echoes at 70% energy Same words, same rhythm, less push. A belted echo cannot be placed behind the lead by any fader. Echoes: -4 to -8 dB |
| 04 |
Track the answers separately New words, only in the gaps, on their own playlist so you can move them later. Answers: -3 to -6 dB |
| 05 |
Do three passes of texture Breaths, inhales, laughs, half-words. The strange take is usually the one that makes the record. Texture: -10 to -14 dB |
| 06 |
Route to three buses while tracking ADLIB-ECHO, ADLIB-ANS, ADLIB-FX, each with a rough pan committed. You are arranging, not collecting files. 3 buses, rough pans |
| 07 |
Strip the silence between clips The far position picks up more room, and that room should not sit under the lead. Gate or strip silence |
The trick: change the mic distance, not the plugin
Depth is a ratio, not an EQ setting. Two things change when a singer moves from 15 cm to 35 cm on a cardioid mic. Proximity effect drops away: up close a cardioid can add something like 5–10 dB of extra energy below roughly 200 Hz, and most of that is gone by 30–40 cm. And the direct sound falls about 6 dB every time you double the distance while the room reflections stay where they are, so the dry-to-room ratio shifts hard. Less chest weight plus more early reflections is exactly the pair of cues the brain uses to decide something is further away. That is why adlibs tracked at a second distance sit behind the lead with the fader at unity and no reverb at all. One mic, two positions, zero plugins, and tape on the floor makes it repeatable.
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Get the Vocal Chain Bible — $48 →Mistakes that kill it
- An adlib on top of a lead word. One of the two becomes unintelligible. Adlibs go in the gaps, and the gaps are where the lead breathes.
- Full energy on every take. A shouted echo cannot be placed behind the lead. Perform the distance, do not just mix it.
- Twenty adlibs in eight bars. If something happens every beat, nothing is an event. Mute half and see what you miss.
- Unlabelled clips. Forty regions called Audio 12_04 is how a session dies. Name by role while you track.
Adlibs are an arrangement job with a microphone attached. Role first, mic second, and the mix takes ten minutes.
Keep going
FAQ
What is an adlib in a song?
A secondary vocal on top of the lead: a repeated word, a short answer in a gap, or a non-verbal sound. It carries energy, not the main information.
Should adlibs use the same microphone as the lead?
Same mic, different distance. A different mic reads as a mistake; a different distance reads as production.
How many adlibs should a verse have?
Roughly one per gap. No gap in the phrasing means no room for an adlib, and forcing one in only hurts the words.
Who's behind this
Ivan Meshcheriakov · IvanFromRnD
5+ years ago I moved to LA with zero connections and started building from nothing — 14-hour days, meeting people and interning at studios. It took me 5+ years to meet and interview 100+ Grammy-winning engineers — then I turned it all into the Vocal Chain Bible.
Read my full story →