Multi Pressure

Multi Band Compressor Unit

(23 Votes)
1.0 (Updated 3 years ago)
3.9MB
January 30, 2018
Reaktor 6
Effect Dynamics

DESCRIPTION

A multi band compressor unit, based off of this paper:

https://www.eecs.qmul.ac.uk/~josh/documents/2012/GiannoulisMassbergReiss-dynamicrangecompression-JAES2012.pdf

version 1.0
---------------
- Special thanks to errorsmith for finding a phase difference error in the bandsplitter, now fixed.

This work funded by the fine folks at reaktortutorials.com

COMMENTS  (14)

mark eddleston
2 months ago
Rick, Its hard to get as many explain it badly. Its actually quite easy once you get Ratio. The rest are in lots of effects INPUT - Volume ATTACK - As with ENVELOPES on synths and samples where it fades in introduction of volume. It's either a short / fast fade in or a long / slow fade in. But here you are introducing the compressing of the volume peaks. Fast would be very noticeable to the ear and slow would be gentle and is often desired as its smoother and not noticeable. RELEASE - Is the same as attack but its how fast or slow you let go of the compression. Slower being smoother. THRESHOLD - In its simplest form you set this so it just effects the loud peaks. Often the kick drum. RATIO - It isn't about stopping all sound above the threshold, so this is how much peak you allow to bleed through it, as u want it to keep natural movement usually. To stop any & all sound past threshold you'd use a Brickwall Limiter. Low to medium is common as it allows more sound to bleed through the threshold, so 1:2 (thats 1 over 2 or 1 allowed through for every 2 compressed), 1:3 or 1:4 (so 50% 33% or 25% of the peak is let through the threshold. 1:10 or 1:20 which some (not many) compressors can go up to would be like a Brickwall Limiter. OUTPUT Hope that helps. OUTPUT - Keeping it simple (as there are some fancy alternatives to simply raising the volume but for this purpose that is what it.
salamanderanagram
4 years ago
if you're anything like me, compression is something you'll do wrong for a long time but then one day it's going to click and become your very best friend!
salamanderanagram
4 years ago
hey rick, IMO snapshots are something to be avoided with compressors, particularly multiband ones. watch this video, it'll teach you more about compression than any preset i could make for you, and check out that first tip! https://www.youtube.com/watch?v=ZUlIF97wsjs
Rick Scott
4 years ago
We want snapshots! We want snapshots! ;-) I'd make 'em myself, but I'm kind of an idiot when it comes to compression, like someone for whom a $200 bottle of red wine tastes no better than a $5 one (Yellow Tail).
Paule
4 years ago
Thanks Salamanderanagram.
salamanderanagram
4 years ago
it's not a multi band version so it's both simpler and easier on the CPU, yup! same compression algorithm.
Rick Scott
4 years ago
Sounds like it's worth a try! Why use the original version ... is it simpler, less CPU load?
salamanderanagram
4 years ago
i mean, isn't a limiter just a compressor with a high threshold (typically only a few dB beneath unity) and infinite (or near-infinite) ratio? in that sense, you could just toss the original version of pressure (check my uploads) after this one, and give it a high threshold and infinite ratio.
Rick Scott
4 years ago
sala, does this have a limiter built in? Something that would smooth out-of-range peaks instead of clipping them? If not, would it be hard to build one in? With good compression *and* limiting, this could be a great default "end of ensemble signal chain" module. :-)
Rick Scott
4 years ago
Great work, as usual. :-) But ... WE NEED SNAPSHOTS! I'm pretty ignorant when it comes to compression, or I'd make them. A nice set of (pre-)mastering snaps would be great!
S Bateman
4 years ago
Thanks salamander :)
michael o'hagan
4 years ago
Thanks, always love your work.
Brett Lavallee
4 years ago
Thank you
Brett Lavallee
4 years ago
Thank you
now