Joachim's Jupiter filter | Planet Filter Series

Introduction:
The Jupiter Filter is a 3-band compressor and a maximizer (limiter).
Multiband compression is a technique mostly used in professional mastering studios, and most software available today, that claims to do proper multiband compression, doesn't a very good job. Only the hardware units availble, seems to produce an acceptable quality.
Also, multiband compression usually consists of a band separation filter, several compressors, and finally a limiter in the end. Adjusting three or four compressors at once is a rather complex task, especially considering how difficult it can be, adjusting a normal old-fashioned compressor. If multi-band compression is to be practically usable to the mainstream user, it must be simplified.
These are the main reasons why I wrote the "Jupiter" filter. It combines high quality filters and compressors with a fairly simple user interface, and there are even some presets for those not interested in too much knob-twitching.
The major advantages of the Jupiter filter, compared to todays multi band compressors are:

- Phase-correct band separation (no flaging or phasing artifacts)
- Better compressor-algorithm (it's based on the well known "Joachims Compressor")
- Simple userinterface (threshold, ratio, attack & release controls all 3 compressors!)
- It's absolutely free.
- It's a native Buzz plugin.

But there are also some disadvantages, though:

- The signal is being delayed (because of the band-separation method)
- This kind of quality requires almost 1 Mb memory, and a lot of CPU power!

I hope you'll enjoy this plug-in - it sure was a bitch writing it! ;-)
How does it work?

                                         +------------+
                                       / | compressor |
                                      /  +------------+  \
                      +------------+ /                    \      +---------+
                      |            |      +------------+   \     |         |
     --- signal -->   | band-      | ---- | compressor | --->--- | limiter | --- output -->
                      | separation |      +------------+   /     |         |
                      |            | \                    /      +---------+
                      +------------+  \ +------------+   /
                                        | compressor |  /
                                        +------------+

The input signal is divided into bas, middle and treble. The these three signals are fed into three separate compressors. Then the signal is mixed together (you can control how much of the three signals you want, by using the "out lo", mid hi sliders.) Finally the signal is sent through a limiter, to avoid unwanted transients, that may occur because of the compressors attack time settings.

Plug-in written by Joachim Michaelis (27-oct-2001) Homepage | Latest machines | VUmeter.exe | E-mail | www.buzzmachines.com

DISCLAIMER: This software may be distrbuted freely. The author of this software cannot be held responsible for any damage caused directly or indirectly by using this software.