Conduit is a delay, filter, and 9 point harmonic oscillation module which creates three independent signal paths that can be inter-mixed how you like. It’s also capable of jumping directly into the circuitry of Matter for processing. The root circuitry is based on the conduit desktop piece which is no longer in production.
At it’s root Conduit is a delay with a warm, analog sound which is clean at tight times and tending toward something disgusting and noisy and slower times. External audio or internal oscillation can be processed by the delay. When multiple oscillation points are mixed, the delay feedback gets distorted and noisy. As a delay it serves best as a source of texture. ?
The Delay travels into a state-variable filter with fixed resonance. A clean signal passing by the delay will still be filtered. The filter has a vactrol-based cv in to control the cutoff. So this filter receiving voltage control is very wormy in nature. It’s best to multiply and mix a signal going into Conduit if it’s to be used for processing – giving you the filtered and unfiltered version.
The purpose of this module is not simply as a delay or a filter – these are just components to a greater whole. With Conduit, aspects of the giant delay IC processing are accessed as a series of sound sources – harmonic oscillations based on the clocking of the delay. Therefore, delay time is the same as master pitch for these oscillations (also represented by “time cv”). There are a total of 8 harmonic oscillations and one noise source. All 9 points representing audio level harmonic oscillations are represented by a 9×4 female header so that each of these points or multiple points can be used as a sound source. Using Resist alongside allows one to control the level of the oscillation.
There are two vactrol sections which act as VCA’s. Each vactrol section has a 0-5v cv/trigger/gate input, input (for audio or cv), output and a 5×2 female header. Any or all of the oscillations can be jumped with dupont cables to either vactrol input, the vactrol can be triggered or accept an ADSR (for example) and output audio.
The nature of the vactrols is decayed, meaning if it’s given a 5v gate/trigger it will have a high peak and then fall away slowly like a bell. So by jumping one or more oscillations to the vactrol and sending a simple trigger or gate to the vactrol cv in, it very easily acheives harmonic bell sounds. But with slower ADSR’s Conduit shines by creating more complex bowed sounds.
So by jumping oscillations to the two vactrols, the outputs create two different signal paths which can be processed independantly. And because these vactrols have an input (for audio or cv) they can be used on their own as vactrol-based VCA’s.
With the vactrol output headers, oscillations can be jumped directly into Matter to be processed.
Oscillation to Delay and Envelope Following
The oscillation points can also be jumped directly into the delay or jumped through a vactrol where it’s triggered and the out can be jumped to the delay. The delay and filter can then process and/or destroy the sound. The delay input also acts as a cv out and becomes an envelope follower (cv based on the audio signal) to control anything external, or to control the time/pitch or filter.
Because there are three independant signal paths, and because they’re all jumpable, they can be mixed in any number of ways to create a greater complexity to the sound. For example, oscillations can be sent to one vactrol, jumped to the delay and the delay out can be sent to another vactrol in. So the first vactrol may get a small bell, become heavily processed and destroyed by the delay and then sent into a nice slow AR vactrol. Any way you can imagine routing can be done with the standard 3.5mm plugs or with cloth covered cables, breadboard jumpers or the supplied dupont cables. A section on jumpers will soon be added to the site for reference.
Oscillations from the main header, post-vactrol or delay out can all be sent directly into the circuitry of Matter where Matter will process the sound in any number of ways and will naturally mix with Matter triggering. Matter Modulation also works exceptionally well to control Conduit filtering. And of course, Matter output can be sent into a vactrol to turn Matter drones into bigger beats or Matter can be processed by Conduit delay/filter.
23 mA +12V
0 mA -12V
0 mA 5V
25 mm deep