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Visual experiment

Threshold, Ratio, Makeup

Does 4:1 mean that every level is divided by four?

Try the concept

Threshold, Ratio, Makeup

Does 4:1 mean that every level is divided by four?

-20 dBFS
4.0:1
0.0 dB
-12 dBFS
Hard-knee compressor curve-60-40-20012-60-40-200Input dBFS
Hard-knee compressor curve
Without compressorOutput with makeup
Inspected input
-12.0 dBFS
Output
-18.0 dBFS
Gain reduction before makeup
6.0 dB

Only the portion above threshold follows the 4.0:1 ratio. Makeup then raises the entire result.

A steady-state hard-knee curve. Gain reduction is calculated before makeup. The native pedal attack, release, and knee are not simulated here.

How to read this experiment

Steady-state hard knee only; not a simulation of the engine’s fixed knee or envelope.

Read the full explanation →

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