Dynamic range compression: Difference between revisions

Revision as of 12:15, 18 October 2023

Revision as of 12:20, 18 October 2023

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A compressor in ''stereo linking'' mode applies the same amount of gain reduction to both the left and right channels. This is done to prevent image shifting that can occur if each channel is compressed individually. This becomes particularly noticeable when a loud element that is panned close to either edge of the stereo field raises the level of the program to the compressor's threshold, causing its image to shift toward the center of the stereo field.

Stereo linking can be achieved in two ways: Thea)the compressor uses the sum of the left and right inputs to produce a single measurement that drives the compressor; or, b)the compressor calculates the required amount of gain reduction independently for each channel and then applies the highest amount of gain reduction to both. (inIn suchthe latter case, it could still make sense to dial different settings on left and right channels as one might wish to have less compression for opposite-side events<ref>{{Cite book |chapter-url=http://media.uaudio.com/support/manuals/v9100-vp4lQz6/UAD%20Plug-Ins%20Manual.pdf |title=UAD Plug-Ins Manual |publisher=Universal Audio |edition=190724 |pages=219–220 |chapter=Fairchild Tube Limiter Collection}}</ref>).

=== Make-up gain ===