Automation in the mix (FL Studio)

What it is and why it matters

A static mix (faders and plugins fixed for the whole song) almost never works: the arrangement changes, the vocalist sings loud and soft, sections have different energies. Automating means making volumes, sends, filters and parameters change over time. It is the phase that turns a good balance into a living, "finished" mix. Many engineers say the last 20% of a mix is made of automation.

Automation tools in FL Studio

• Automation clip: right-click any control (fader, knob, plugin parameter) → Create automation clip. A clip appears in the Playlist with an editable curve: points (right-click to add), curve tension, curve types (single curve, double curve, hold, stairs, smooth, pulse, wave). The clip also has a built-in LFO for rhythmic modulation.
• Automation recording: arm recording with automation events enabled and move the controls during playback (mouse or MIDI controller); then convert or edit the events into clips (Event editor, "Edit events").
• Event editor: automation contained in patterns (it repeats with the pattern).
• Internal controllers: Fruity Peak Controller (follows the level of a signal and drives other parameters: ducking, effects that react to the drums), Fruity Formula Controller (mathematical formulas), Fruity X-Y Controller; they are connected with Link to controller.
• Patcher: macro controls that move several parameters together (a "build-up" knob that opens the filter, raises reverb and width).
• Last tweaked parameter: from the Tools menu you can create automation for the last control changed.
• Gross Beat: pattern-based volume and time (gate, stutter, tape stop) that can be automated per section.

What to automate (in order of importance)

1. Lead vocal ("vocal ride"): small volume moves (±0.5/±3 dB) word by word or phrase by phrase, so every syllable is audible over the music. It is done before compression (with a trim/gain in the first slot, e.g. Fruity Balance) or with the fader afterward, depending on the desired result. Automatic alternative: Waves Vocal Rider.
2. Volumes per section: verse, pre-chorus, chorus, bridge. Chorus +1/+2 dB on key instruments, entrance of new elements; drier verses.
3. Effect sends: delay throw at phrase endings, a bigger reverb in the chorus or bridge, a reverb that closes before a drop.
4. Filters: HP/LP on intro, build-up, breakdown, outro; an LP filter that opens when an element enters.
5. Stereo width: narrower verses, wider choruses (Stereo separation, Spreader).
6. Plugin parameters: saturation drive in the drop, synth cutoff, delay feedback, pitch for risers.
7. Mutes and transitions: removing kick and bass for a bar before the drop, stopping everything (a break), reverse reverb.
8. Master: with caution (e.g. +0.5 dB in the final chorus, a filter for a "radio" intro).

Reference values

Volume pre or post compression?

• Before the compressor (gain/trim in the first slot): the compressor receives an already even level and works less; the character of the compression stays the same. Ideal for vocals.
• Fader (post): changes the final level without changing how hard the compressor works; ideal for balance between sections.
• Automating the fader of a track that feeds post-fader sends also changes the send (reverb that drops with the vocal): that's usually what you want; otherwise use a pre-fader Fruity Send.

By genre

• Pop: dense automation on vocals and sections; choruses that "open up".
• EDM: build-ups (filters, risers, pitch, reverb, width), drops and breakdowns are built with automation.
• Hip hop/trap: throws on ad-libs and phrase endings, filters on the beat in intros and changes, 808 and kick mutes to emphasize punchlines.
• Rock: vocal ride, louder solos, guitars that grow in the ending.
• Orchestral and acoustic: broad volume automation following the musical dynamics.

Common mistakes

• Automating too early: static balance first, then automation.
• Automating the fader and then moving the fader by hand: FL returns the fader to the curve (edit the clip or use a separate trim).
• Abrupt volume jumps (clicks): use short curves (5–20 ms) instead of instant steps.
• Build-up filters not reset: the drop starts filtered.
• Master automation to fix the mix: go back to the tracks.

How to hear it

• Listen to the song at low volume: every word of the vocal must stay understandable; where it disappears, a ride is needed.
• Compare the shape of the song on the short-term LUFS graph: the chorus should rise 1–4 LU above the verse (unless different choices are made).