This Eurorack filter has AUTO DYNAMICS! // Flow 3 from Joranalogue *MEGA DEMO*

video upload by DivKid and Joranalogue Audio Design

"As we'd expect from Joranalogue, they take inspiration from classic, seemingly simple functions and turn them into musical and technically impressive devices. Flow 3 is a compact filter that builds upon on the idea of an auto wah, it's a filter with 'auto dynamics'. There's on board modulation, that can modulate itself or your modular system, stave variable filter outputs, CV over everything and an easy to play with layout in 6HP."

Update: Press release follows:

Joranalogue Audio Design announces availability of Flow 3 auto-dynamic filter module for Eurorack that sounds bigger than it looks

STEKENE, BELGIUM: having made its impressive-sounding debut during a showcase at SUPERBOOTH26, May 7-9, FEZ-Berlin, Germany, high-quality Eurorack music synthesiser modules-maker Joranalogue Audio Design is proud to announce availability of Flow 3 — an auto-dynamic filter that sounds bigger than it looks, thanks to the novel variation on the classic state variable filter topology that lies behind its compact 6 HP panel — as of August 25…

Firstly, Flow 3’s core integrator saturation of its simultaneous — low-pass (LP2), attenuates frequencies above the filter frequency (or cutoff) at -12 dB/octave and self-oscillates at a phase of 180°; bandpass (BP2), selects a band of frequencies around the filter frequency (but below and above that the attenuation slope is -6 dB) and self-oscillates at a phase of 90°; and high-pass (HP2), attenuates frequencies below the filter frequency at -12 dB/octave and self-oscillates at a phase of 0° — outputs provide for a sound that is clean yet distinctive.

RESONANCE response is exceptionally smooth — it, too, can easily reach self-oscillation (at higher feedback levels), the temperature compensation and exact calibration effectively transforming Flow 3 into a reliable quadrature sine/cosine VCO (Voltage-Controlled Oscillator) with tight pitch tracking.

The ace up Flow 3’s sleeve, however, lies in its auto-dynamic nature — helpfully highlighted by the non-erasable AUTO DYNAMIC FILTER graphic positioned across that compact, clean-cut 6 HP panel. After all, it is a filter that can modulate itself, achieved by a combined DECAY generator/envelope follower circuit controlling the filter frequency over an adjustable range; either fire decay envelopes from external triggers, or flip it to AUTO mode to follow along with the incoming signal’s amplitude envelope (or both, simultaneously).

Saying all that, then, creating heavy-hitting analogue kick drum sounds becomes a breeze, but, with a bit of patching, Flow 3 can even be used as a spectrum splitter (or crossover), cleanly separating the full audio range into low and high portions, for dual-band signal processing — perfectly possible thanks to the Linkwitz-Riley filter response at minimum resonance.

Ultimately, users of Flow 3 can clearly get carried away as the Eurorack module concerned creatively takes the old auto-filter concept to new voltage-controlled heights, hearing for themselves exactly what the fuss was all about at that impressive-sounding SUPERBOOTH26 showcase!

Coming complete with a 16-to-10-pin Eurorack power cable, two black M3 x 6 mm hex screws, two black nylon washers, and a hex key, Flow 3 is available as a 6 HP module — measuring 128.5 mm (H) x 30 mm (W) x 52 mm (D) with a +12 V: 45 mA/-12 V: 45 mA maximum current draw, reverse polarity (MOSFET) power protection, 100 kΩ impedance inputs and 0 Ω (compensated) impedance outputs — through Joranalogue Audio Design’s growing global network of authorised dealers at a MSRP (Manufacturer’s Suggested Retail Price) of €215.00 EUR or $225.00 USD.

Check with dealers on the right.


Video TIMING INDEX // CHAPTERS*

INTRO

00:00:00 Hello & previews

00:02:05 What is Flow 3?

00:02:59 Feature run down

00:04:23 Raw filter sweeps

PATCHES

00:06:23 Stacking envelopes for accents + acid sounds

00:10:46 Creative spectrum splitting

00:14:21 Audio rate modulation - lovely vocal formant like tones

00:16:57 Can the decay envelope be an oscillator?

AUTO DYNAMICS

00:20:46 Auto wah beats + destructive audio rate mod

00:24:23 Auto dynamics on synth voices

00:27:35 Bonus performance moves - auto switch as a mute

00:29:14 Auto dynamics on drones + west coast complex tones

00:31:48 Dynamic found sound percussion + important dynamics on chords

00:35:21 Flow 3 as a mix processing performance layer

PINGS & KICKS

00:38:47 Dynamic Pings with FM tones

00:42:32 Basic kick drums

00:45:02 Complex kicks that got out of hand!

FOLD 6 & FLOW 3

00:49:35 Fold & filter + additional bonus second envelope

00:53:37 Flow 3 + Fold 6 - a 2 module compact voice

SELF PATCHED SHAPING

00:56:02 Self patched waveshaping

00:57:58 Self shaping LFOs - ultra wobbles!

PROCESSING CV

01:00:19 Slew & resonant wobbly envelopes

01:03:36 Turning step sequences into custom LFOs


*THIS VIDEO IS SPONSORED BY JORANALOGUE* they have funded the creation of this demo video. Any questions, as always, just ask!