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Static Compressor Curve

Model a hard-knee compressor with explicit threshold, ratio and makeup gain, separating gain reduction from final steady-state output.

Use this result well

Inputs that matter
Input level (dB), Threshold (dB), Compression ratio (input:output), Makeup gain (dB)
Output to expect
Modeled steady-state output level
  • Check the units and required inputs before comparing results.
  • Keep the assumptions with a copied result so you can reproduce the calculation later.
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Reference & details

How it works

Static hard-knee compressor curve

Before makeup: y = x below threshold; otherwise y = threshold + (x − threshold)/ratio. Final output = y + makeup gain A static transfer curve. Attack, release, soft knee, sidechain filtering and detector behavior are excluded. The result neither predicts LUFS nor guarantees that transients stay below a peak ceiling. Compression can raise audible noise after makeup gain; choose settings from the recording and listen.

Updated: September 2026

Example Scenarios

Compare a steady input with a hard threshold, compression ratio and explicit makeup gain on one shared dB level scale.

Common Mistakes to Avoid

Applying static hard-knee compressor curve outside its stated assumptions

Attack, release, soft knee, sidechain filtering and detector behavior are excluded. The result neither predicts LUFS nor guarantees that transients stay below a peak ceiling. Compression can raise audible noise after makeup gain; choose settings from the recording and listen.

FAQ

No. It illustrates the steady-state level curve.

Pre-makeup gain reduction and net input-to-output change are reported separately.

About Static Compressor Curve

Model a hard-knee compressor with explicit threshold, ratio and makeup gain, separating gain reduction from final steady-state output. Choose the mode that matches your measurements or study design, enter the stated units and keep the method and limits with the result.