RYO - Roll Your Own Eurorack Videos - New RYO Aperture LPG and Penta 5-step sequencer

Published on Nov 19, 2015 Roll Your Own

via Thonk. The RYO Aperture LPG and Penta 5-step sequencer are new. The kits are available at Thonk here.

Playlist:
1. RYO Aperture LPG and Penta 5-step sequencer

"A simple demonstration of the Aperture resonant vactrol VCF/VCA/LPG together with the upcoming Penta 5-step, 4hp sequencer. Showing the different modes of Aperture as well as the step switch on Penta. Using the Flame 4VOX VCO and Dinsync.info OSC303mk2 VCO as sound sources. Triggers and envelope from Trig Xpander and Make Noise Maths. Roland Demora Delay added in some places."

2. RYO NAND/AND prototype logic as audio distortion

"Discrete transistor logic.
Sound source 1: Livewire AFG to dinsync.info SARA VCF to Airtenuator to IN1 on the N(AND).
Sound source 2: dinsync.info OSC303 to Livewire Frequensteiner to IN2 on the N(AND).
Listening to the NAND output.
Only using IN1 and NAND out makes it a NOT Gate."

3. RYO Airtenuator I - New satellite passive attenuator module

"Showing off a prototype of our new Airtenuator floating passive attenuator module. Here used to control envelope depth from a Steffensen Envelarp on Dinsync.info SARA VCF filter cutoff."

4. RYO VC Sequencer Beats & Bass

"In this clip we're using VC Sequencer and its Trig Xpander in VC mode to generate pitch voltages for the bassline and triggers for the synth drums. The VC Sequencer is controlled by a stepped random waveform from FC Modulation Druid, this is in turn tempo-synced to the master clock lfo (Doepfer A-147) via an RCD. This is also used to provide extra gates and triggers mixed into and modulating the rhythm for more movement and swing. The jittery trigger action is due to a combined effect of the dirty output of the Modulation Druid as well as an opamp on the VC Sequencer not being up to spec to handle dirtiness very well, this has since been remedied with a better opamp for the job that solves the jitter in the VC Sequencers sent out to customers."

5. RYO VC Sequencer VC Mode

6. Roll Your Own general wiggling.

"One RYO (Roll Your Own) VC Sequencer controlling pitch on Livewire oscillators (AFG) and Frequensteiner filter. Notice how the pitch doesn't drop when the second oscillator is patched in via passive multing via stack cable 17 seconds in. A second RYO VC Sequencer controls decay legnth on a Maths envelope.

The second timbre (every 4 steps) is triggered with passive mixed trigs from the gate/trigger expander of the RYO VC Sequencer, set in trigger mode. It is a Livewire Dalek modulator making the sound and Doepfer Wasp filter slowly modulated by Vulcan modulator. Envelope is also Maths.

Both timbres use RYO Optodists as VCAs and distortion with LED limiters on. Clock is a Doepfer VC LFO."