Quote:
Originally Posted by
javahut
Compression doesn't necessarily control volume. It reduces dynamic range. Lowering volume doesn't reduce dynamic range. It reduces the level, leaving dynamic range virtually intact.
Yes, that's true, as long as you do "normal" compression.
Let's say we'd use a kick/trigger that is a square with the length of 200ms. So attack = 0ms, sustain = 200ms, release = 0ms
The sidechain compressor is set to attack = 0 ms, release = 0ms. As soon as the trigger signal hits the threshold, what will happen is: instant ducking (= 0ms) for 200ms (the trigger signal is 200ms long), after that instant release. What do you think? On the processed/ducked signal: Will be the whole signal ducked, or just the peaks above the threshold?
I say it's the whole signal, leaving the dynamics. If you work with a kick-driven sidechain, you don't lower dynamics of the processed signal. You lower the volume when the trigger-kick comes (lowering the volume as long as the attack is set as soon as the trigger signal hits the threshold), as long as the trigger is above the threshold (sustain), and then below the threshold the volume comes back again (as fast as release is set). So I'd say, during the "compression" (= sustain) you lower the WHOLE processed signal, keeping the dynamic of the processed signal.
You cannot just lower the "peaks/content" above the threshold of the processed signal, leaving the content below the threshold, thus reducing the dynamics. That would be "normal" compression,
not sidechain driven where kick/trigger lowers bass.
But please, prove me wrong. Because otherwise it seems that I have a completly wrong understanding of compression and sidechain triggered compression.