vimsynth/modules/eq

modules/processors/EQ

EQ

A four-band equaliser for a stereo BUS — a low shelf, two sweepable bells with their own width, and a high shelf. This is the TOOL, where VCF is the instrument: it does not sweep or resonate, it changes the balance of a mix rather than the character of a voice. Reach for it to take 3 dB out of a boxy low-mid, notch one ringing frequency, or lift some air on top. Flat at its defaults, so dropping one in changes nothing until you turn a knob. r normals from l, so a mono source needs one cable.

The EQ card as vimsynth draws it: its title bar, 11 knobs, 2 inputs down the left edge and 2 outputs down the right
EQ on an empty rack — 32×24 cells, knobs at their defaults. Press a in the app and pick EQ to get this card.

inputs

Down the left edge of the card, top to bottom.

laudio
Left in — or the whole signal, if it is mono.
raudio
Right in. NORMALS from l, so a mono source patched into l alone is EQ'd and comes out of both sides.

outputs

Down the right edge, in the same order.

laudio
Left, equalised.
raudio
Right, equalised.

knobs

Left to right across the face — the dials in the picture.

lo hz20 … 1000 hz= 120 hz
Where the low shelf turns over — the whole bottom below it moves together.
lo dB-18 … 18 dB= 0 dB
Lift or cut the bottom. A dB or two is a mix decision; six is an effect.
m1 hz60 … 8000 hz= 500 hz
The first bell's centre.
m1 dB-18 … 18 dB= 0 dB
Lift or cut it. CUTTING is the underrated half: taking 3 dB out of a boxy 300 Hz does more for a mix than boosting anything.
m1 q0.3 … 8= 1
How WIDE that bell is. Low is a gentle tilt across octaves; high is a surgical notch for one ringing frequency.
m2 hz200 … 16000 hz= 3000 hz
The second bell's centre — usually the presence range, where an instrument either speaks or does not.
m2 dB-18 … 18 dB= 0 dB
Lift or cut it.
m2 q0.3 … 8= 1
Its width, as the first bell's.
hi hz1000 … 18000 hz= 6000 hz
Where the high shelf turns over.
hi dB-18 … 18 dB= 0 dB
Lift or cut the top. This is 'air' — and the first thing to try when a patch sounds dull is a little here rather than more resonance somewhere else.
modestereo · mid · side= stereo
WHAT it equalises. stereo is both channels. mid touches only what both sides share — where the bass, the kick and the vocal live — and side only what differs, which is the reverb and the width. A CHOICE, so it cannot be modulated. Two EQs, one on each, is how you shape the middle and the edges differently.

more

The full reference — every parameter curve, the patching notes and the worked examples — lives in the manual: docs.vimsynth.com/modules/eq. In the app itself, :help EQ opens the same page without leaving the rack.