Signal Processing
What Is Gain Staging?
Quick answer
The two problems gain staging solves
Every signal in an audio chain has a noise floor — a baseline level of background noise below which the signal is inaudible. There's also a ceiling — 0 dBFS in digital audio — above which the signal clips. Good gain staging keeps the useful signal comfortably between these two extremes at every step of the chain.
Recording too quietly (say, -40 dBFS peaks) means when you later boost the level to a normal range, you also boost everything below the signal: the noise floor, the hiss, the electrical interference. The boosted noise is now audible. Recording too loudly means peaks clip the digital ceiling, creating harsh distortion that can't be undone.
The signal chain
A typical recording signal chain has multiple stages, each with its own gain control. Gain staging means each stage hands the signal to the next at an appropriate level.
Recording signal flow
Each stage has gain that needs to be set correctly.
The sweet spot: headroom
Headroom is the difference between your signal level and the digital ceiling (0 dBFS). A signal peaking at -12 dBFS has 12 dB of headroom. This matters because transients — the sharp, fast attacks of drums, piano, hand claps — can be significantly louder than the sustained average level. Without headroom, these transients clip.
| Stage | Target level (peaks) | Why |
|---|---|---|
| Recording / input | -18 to -12 dBFS | Leaves headroom for transients; keeps signal well above noise floor |
| Individual tracks | -18 to -12 dBFS | Gives plugins headroom; plugin processing can increase levels |
| Plugin outputs | -12 to -6 dBFS | Ensure no plugin is clipping its output into the next in chain |
| Master bus (pre-limit) | Up to -6 dBFS | Leave room for the limiter to catch peaks |
| Final export | -1 dBTP (true peak) | Platform standard; prevents digital clipping on decoding |
Common gain staging mistakes
- Recording too quietly:Setting the input gain too low to avoid any risk of clipping. The result is a signal buried in noise that requires significant amplification in post.
- Using faders as gain controls:Cranking a DAW fader to +10 dB to make up for a quiet recording — this adds gain after the signal has already been captured at a poor level, along with everything below it.
- Ignoring plugin gain:Some plugins add significant gain to their output. An EQ boosting 6 dB at a key frequency can push the signal into clipping further down the chain if the output isn't checked.
- Not checking the master bus:Individual tracks look fine, but the summed master bus is clipping because the combination of many signals adds up to more than any single track showed.
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Last updated: March 28, 2026