Automation in your DAW: a practical guide to moving mixes

A static mix is a photograph. Automation turns it into a performance. It is the record of a control moving over time: a fader, a pan knob, a filter cutoff, a send level, a plug-in switch. Your DAW plays those moves back every time, exactly, so the mix you settled on at 2am is the mix you hear the next morning.

This guide is for producers who can already build a loop and balance a few tracks, and who want their songs to move. The examples use Ableton Live and Logic Pro because their manuals spell out the behaviour clearly, but the ideas carry over to every major DAW.

What you can automate

Almost anything with a value. Ableton's manual says "practically all mixer and device controls in Live can be automated, including the song tempo." Logic, Cubase, FL Studio, Reaper and Bitwig are similar. In practice the useful targets fall into four groups:

• Level: track volume, send levels to reverb and delay buses, a plug-in's input or output gain.
• Space: pan, stereo width, reverb size or mix.
• Tone: filter cutoff and resonance, EQ bands, saturation drive.
• Switches: muting a part, bypassing an effect, turning a delay throw on for one word.

If you are new to the processors themselves, our guides to compression and reverb and delay explain what each control does before you start moving it.

Two ways to make it: draw or record

Drawing means showing the parameter as a lane under the track and placing points (breakpoints) on it. Each point is a value at a time; the DAW draws a line between them. Ableton describes this as an envelope where "the vertical axis represents the control value and the horizontal axis represents time." Drawing is precise and repeatable. It is the right tool for anything tied to the grid: a filter sweep over exactly eight bars, a volume dip on beat one, a reverb that cuts off on the downbeat.

A few editing habits save hours:

• Keep the grid on for musical moves, and turn it off for small fixes. In Live you can hide the grid or hold a modifier to draw freehand.
• Use curves rather than straight lines for fades and sweeps. In Live, holding Alt (Windows) or Option (Mac) while dragging a line segment curves it. In our experience, a curved fade often sounds smoother than a straight one, so try both and trust your ears.
• Type exact values when they matter. Live lets you right-click a breakpoint and choose Edit Value.

Recording means pressing play and moving the control, by mouse or, much better, by a fader or knob on a controller. You capture the feel of a hand: the slight push into a chorus, the late, uneven fade on a tail. This is how engineers have ridden vocals for decades, and it is the quickest way to make automation sound human. If you have a controller, our MIDI controller basics shows how to map a fader to whatever you want to ride.

Most people end up doing both: record a rough pass by hand, then tidy it by drawing.

The automation modes, in plain words

When you record automation, the DAW needs to know what to do with what is already there. That is what modes are for. Apple's Logic Pro guide defines them clearly, and other DAWs use the same names or close cousins:

• Read: plays back existing automation. You cannot change it by moving the control.
• Touch: plays back like Read, but while you hold a control you overwrite it. When you let go, "the parameter follows existing automation on the track."
• Latch: like Touch, but when you let go "the new parameter value replaces existing automation on the track."
• Write: "Erases existing automation on the track as the playhead passes over it", recording your move or deleting the data "if you do nothing."
• Trim: offsets existing volume, pan or send automation up or down by however far you move the control, keeping the shape of the moves you already made.

Which one to use:

• Touch for fixing one phrase: a word that pokes out, a snare fill that needs a lift.
• Latch for changing a level from a point onward, such as the whole last chorus.
• Trim when the shape of your vocal ride is right but the whole thing sits a decibel too loud.
• Write rarely, and on purpose. It is the mode that quietly wipes work.

Ableton handles this differently and is worth knowing about. Its manual explains that with a mouse, recording stops "immediately when you let go of the mouse button", which it compares to touch behaviour, while a hardware knob in Session View keeps recording until the end of the clip's loop, like latch.

The trap that catches everyone

You automate the vocal level, then later nudge the fader to try something. In Live, that manual change overrides the automation: the little indicator on the control goes off and the Control Bar's Re-Enable Automation button lights up. The manual calls this a reminder that "the current state of the controls differs" from what is written. Click it, or use Re-Enable Automation on the parameter's context menu, to get your moves back. Logic's equivalent trap is leaving a track in Latch or Write after a pass. Switch tracks back to Read when you finish recording moves.

The other classic mistake is automating the fader you also use to balance the mix. Once a vocal fader is full of moves, you cannot simply pull the whole vocal down 2 dB without fighting it. Two clean fixes: use Trim, or put a utility or gain plug-in first on the track and automate that, leaving the fader free for the static balance.

A simple order for automating a mix

1. Balance first. Get a good static mix with no automation. Automation polishes a balance; it does not replace one.
2. Arrangement moves. Mutes, filter sweeps, risers and drops that are part of the song's structure. Our guide to arrangement basics covers where those moments tend to land.
3. Vocal rides. Ride the lead vocal phrase by phrase so every word sits at the same perceived level. Compression does some of this; riding does the rest without the squash.
4. Effect throws. Push a delay send for the last word of a line, or open the reverb at the end of a section, then pull it back.
5. Section lifts. Small level and width changes between verse and chorus, often 1 to 2 dB. Listeners feel these more than they hear them.
6. Listen without looking. Close the lanes and play the song top to bottom. If a move draws attention to itself, soften it.

What we think

Most beginner advice treats automation as a finishing touch, something you add after the mix is done. We think that is backwards for most bedroom producers. The tracks that feel flat are rarely flat because of the EQ; they are flat because nothing changes for three minutes. A loop with five well-placed moves (a filtered intro, a vocal ride, one delay throw, a mute before the drop, a small lift in the last chorus) will hold a listener better than a perfectly balanced loop with none.

The less obvious point is that recording by hand matters more than it seems. Drawn automation is tidy, and tidy is the problem: grid-perfect ramps sound like a machine because they are one. A cheap controller with a single fader, and the habit of riding the vocal in one take while listening rather than looking, does more for a mix than most plug-ins you could buy for $20. Draw what belongs to the grid. Perform everything that belongs to the song.