Do the Compressor Ratio and Knee can be calculated or have formula to use?

Hello,

I have read DaveThib document: 3022 Standard Compressor Meter variables and calculations for the Sigma300 and 350 processors.

This topic really helps me a lot to understand the compressor and how to implement the Attack/Hold/Release calculation in the micro-controller.

The question I want to ask is about the "Compressor Ratio and Knee", like below:

Do Compressor Ratio and Knee can use formula and calculate then setting in to the DSP by the mcu?

where I understand the compressor ratio is:

if setting ratio at 4:1, it means for every 4 dB above the threshold, the compressor only allows 1dB above the threshold through

But I dont know how to implement this in mcu to calculating and setting, because I may need dynamic adjustment at mine ui panel.

Please help me on this,

Thank you!

Audio Signal Processors

adau1452

compressor

software

microcontroller

sigmastudio

SigmaDSP Audio Processors

ADAU1701 ADAU1452

4.6

adau1701

calculating

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