Compression & Dynamics Patching on Eurorack Modular Synths // Sump Pump by Robots Are Red

video upload by DivKid

"Here we have SUMP PUMP from Robots Are Red (with circuit design from Setonix Synth). It's a 6HP stereo Eurorack noise gate that can also invert its behaviour into a compressor and with the 'floor' control it can also be an expander. We've 3 umbrella sections in the video with compression, noise gate and sidechain ducking techniques. Check out the patches and let us know which is your favourite. There's also an exclusive run down of the dirty bass patch on / divkid"

*TIMING INDEX // CHAPTERS*
00:00 Intro & previews
01:00 What are we doing & feature run down

PATCHES // COMPRESSION
03:17 Setting up compression on beats
06:05 Adding excitement to thick distorted bass with expansion
08:17 Reshaping chords with compression

PATCHES // NOISE GATE
10:00 From basic to creative noise gates
13:56 “Beat density” with floor control (thanks to RAR for the idea!)

PATCHES // DUCKING & SIDECHAIN
17:48 Big dumb bass ducking - good fun & how to set it up
19:34 Creatively duck ambient FX - I love this mixing/production trick

It's a noise gate, it's a noise suppressor, it's a compressor, it's an expander, it's stereo.

The Specs and Stats:

Width: 6hp
- Attack and Release knob for envelope(s)

- Threshold for suppression/compression (0V - ~8V)

- Floor controls the amount of suppression/compression from -100dB to Unity and even up to +10dB for expanding the louds louder or make the quiets a bit louder.

- Level controls your overall output level

- Gate/Comp switch: When in "Gate" mode, whenever the input falls BELOW the threshold level, the envelope will engage towards the floor setting. When in "Comp" mode, the envelope will trigger when the input rises ABOVE the threshold setting.

-Stereo inputs and outputs. The envelope follower is assigned to the Left input, so the L input can also be used as a sidechain input for a mono signal (into In-R).

- Engage input. This is a gate input for manually engaging the envelope.

- Threshold CV input. This offsets from your knob position.

- Floor CV input. This also offsets from your knob position.

- Duck CV Input. This is an envelope follower input that applies and inverted envelope to the level of the signal. Send a simple pulse or trigger, an actual kick, an envelope, or anything else into this to duck your signal.

-Envelope Output. The envelope Output does not follow the "floor" settings and always outputs a full voltage envelope.

Special thanks to SetonixSynth and many others for really helping make this module a reality.

Buchla & Friends & Friends

video upload by Robots Are Red and Mega Modular Corp.

"2026 Buchla n Friends & Friends.

Brought to you by Mega Modular Corp."

Creative Eurorack Distortion & How To Use It // HEAD BANGER from Setonix Synth & Robots Are Red

video upload by DivKid

"Distortion has been an essential tool for my music making for most of my life, whether that was playing guitar, working with synths in amps, re amping synths and production stems through pedal FX or smashing mixers, tape machines and other gear I've always found it fascinating and with the options to CV control distortion in modular it's even better!

Head Banger from Setonix Synth & Robots Are Red takes the Swedish Death Metal sound of the Boss Heavy Metal pedal, heavily re vamps it for a wide range of input sources, adds CV control and a creative feedback path and presents itself in Eurorack form. While the name and styling lean on the metal heritage it's been interesting to find a subtler warmth and crunch, synths in tube amp like tones and blown out noisy cassette style grunge for more ambient music.

There's a 5% off code for sales of Head Banger at https://www.setonixsynth.com/ with code HEADBANGER5. If you're a Patreon supporter there's an exclusive 15% off code for you at / divkid"

CLICK FOR MORE »

SumpPump Stereo Noise Gate/Compressor by Robots Are Red || Full Walkthrough and Demo

video upload by Robots Are Red

00:00 - Intro
00:43 - Overview
01:24 - SumpPump Demo
03:15 - How Does it Work?
05:34 - Drum Demo & Patch Tips
11:09 - Dynamic Synth Voice
15:15 - Pseudo PWM Mangling
18:08 - Audio Rate Modulation
19:55 - Duck Input
21:43 - Engage Input
23:10 - Sidechaining
25:38 - Self Patching
27:25 - Modulation & Effects
31:36 - Guitar Noise Suppressor
34:02 - Envelope Generator
36:47 - VCA
38:46 - Call & Response Effect

"It's a noise gate, it's a noise suppressor, it's a compressor, it's an expander, it's stereo.

Want a SumpPump? Get one here

Special thanks to Jack from SetonixSynth for making this whole module thing possible!

The Specs and Stats:

Width: 6hp

Attack and Release knob for envelope(s)

Threshold for suppression/compression (0V - ~8V)

Floor controls the amount of suppression/compression from -100dB to Unity and even up to +10dB for expanding the louds louder or make the quiets a bit louder.

Level controls your overall output level

Gate/Comp switch: When in "Gate" mode, whenever the input falls BELOW the threshold level, the envelope will engage towards the floor setting. When in "Comp" mode, the envelope will trigger when the input rises ABOVE the threshold setting.

CLICK FOR MORE »

ALA + RAR Mingles

video upload by After Later Audio

Mingles - Dual Autopanner and Dual 3 Channel Mixer/VCA || After Later Audio + Robots Are Red.

video upload by Robots Are Red

"Mix a synth patch and use Mingles as the VCA.
Blend a signal between two different outputs.
Autopan a mono signal.
Stereoize even more, an already stereo signal.

Mingles is a 12hp Dual 3 Input Mixer with attenuators for each signal, and a large panning knob for each of the two channels. There is a stereo output for each of the two channels, and a mixed stereo output of both channels. There is an internal LFO (Triangle or Pulse) that can be applied to each of the two channel’s panning. The LFO is inverted on channel 2 to allow for mirrored panning between the two channels.

There is also a VCA and external panning CV input in each of the two channels, along with a CV input for control of the LFO rate, and there is an LFO output.

The LFO can be switched between Triangle and Pulse waves with a jumper on the back of the module.

A huge thanks to After Later Audio for helping make this idea I had over 2 years ago a reality!

You can jump to any section of the video here:

00:00 - Opening
00:38 - Introduction and Rundown
02:50 - Stereo Oscillator Synth
04:36 - LFO Rate
05:09 - Back to Stereo Oscillator Synth
05:40 - Modulating the LFO Rate
07:38 - Mixing Drums
09:55 - External Panning CV
10:57 - End of Chain Panning Effect (Pulse LFO)
12:35 - Other Patch Suggestions
13:18 - Some Music"