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FAC Envolver

FAC Envolver is an envelope follower, this implies that it tracks the contour of the input signal and builds a corresponding envelope

FAC Envolver is an envelope follower, this implies that it tracks the contour of the input signal and builds a corresponding envelope

FAC Envolver

by Frederic Corvest
FAC Envolver
FAC Envolver
FAC Envolver

What is it about?

FAC Envolver is an envelope follower, this implies that it tracks the contour of the input signal and builds a corresponding envelope. Think of the envelope as the outline of the graphical representation of a rectified version of your input signal. By its very essence, it’s exactly what you get. But the process does not stop there and gives you the ability to modify the shape according to a set of provided parameters.

FAC Envolver

App Details

Version
2.1
Rating
(5)
Size
27Mb
Genre
Music
Last updated
September 22, 2018
Release date
May 14, 2018
More info

App Screenshots

FAC Envolver screenshot-0
FAC Envolver screenshot-1
FAC Envolver screenshot-2
FAC Envolver screenshot-3
FAC Envolver screenshot-4
FAC Envolver screenshot-5

App Store Description

FAC Envolver is an envelope follower, this implies that it tracks the contour of the input signal and builds a corresponding envelope. Think of the envelope as the outline of the graphical representation of a rectified version of your input signal. By its very essence, it’s exactly what you get. But the process does not stop there and gives you the ability to modify the shape according to a set of provided parameters.

So it’s possible to define the rise and fall time as well as the depth of the envelope or also to invert it. Those parameters are the key to ensure the flexibility of the effect, and to meet the goal you are looking for.

The previous lines are more a general presentation of what an envelope follower does, but the particularity of FAC Envolver, which makes it an outstanding and versatile tool, is that it delivers the envelope via MIDI control change messages or commonly referred to as CC.

The key is to map the CC number parameter to the volume, cutoff, resonance control of your synthesizer or effect units. By doing so you will get instant additional hands to tweak your parameters automatically depending on what you are currently playing.

The internal signal path is built around two independant channels, having one envelope circuit detection per input signal. So the left input signal is wired to the envelope one, and the right input signal is wired to the envelope two.

FAC Envolver will breathe life into your sound, providing interesting natural modulation that will always be different by nature.

• Tips!
An envelope follower has a lot of usage, the most famous is probably the ducking or sidechain effect. The trick is to invert the envelope and map it to a VCA receiver. Whenever an input signal is present, the envelope is generated and the sound controlled by the VCA is attenuated accordingly. The advantage is that we don’t need to sync anything as the follower will output what it receives.

Have a look at the "sidechain" preset and use it as template. Note that it's very important to set the gain of the input signal by setting properly the input gain parameter provided. Use the waveform viewer provided to have an idea of the current level.

Oh yes FAC Maxima will be the perfect companion tool for this task!

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