Why the limiter in multiband compressor effect raise volume

Question

I was thinking that limter is made to cut sounds above the treshold then in multiband compressor when I lower a "thresh" it raises volume up. It is quiter when It is at 0 than at -10. I don't udnerstand why. Pleae, can someone explain it?

PaulMurphy · Accepted Answer

The Limiter in the Multiband Compressor operates differently from something like the Hard Limiter effect. After applying limiting based on the Threshold, the output is amplified to reach the level set by the Margin, which can result in a louder overall signal. This behavior is by design and is detailed in this article: Adobe Audition Multiband Compressor.

If the output is too loud, you can reduce it by adjusting either the Margin or the Output Gain. Keep in mind that the Threshold operates on the signal after Output Gain is applied, which can affect how the limiter behaves.

For a more straightforward approach to limiting, consider using the Hard Limiter effect.

R Neil Haugen · Answer

That is first and foremost a compressor effect ... and a compressor works both ways, depending in a complex manner on the specific control settings ... lifting quieter sounds and rolling off louder sounds. And this is part of that effect ...

So it took me a while of working with it to get a handle on what to expect. Like you, it didn't do exactly what I expected from just looking at it. I still claim no definitive knowledge of using the audio tools past "I do this cuz it works" ....

@PaulMurphy though could give great specifics on this.

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