Humble Audio Quad Operator

video upload by DSP Kills

Probability-based Transposing with PRECISION VOLTAGES, CHANCE DELAY & a Step Sequencer #eurorack

video upload by AJH Synth Official

"A sequencer patch using PRECISION VOLTAGES and CHANCE DELAY modules for probability-based transposing of steps. Also featuring sound from a single VCO and the SONIC XV filter & wave folder.

Video & Performance by @DreamsOfWires

PATCH BREAKDOWN:
A Doepfer Mini Sequencer is playing a simple 5-step sequence. The clock is from the DUAL LFO + VCA module, which is also triggering an DH-ADSR envelope generator (connected to audio VCA), and the SAMPLE HOLD & SLEW module.

Because the sequencer gates aren't being used to trigger the envelope generator, I can use them elsewhere, and on the Mini Sequencer they can be turned off per step, so instead I am sending these gates to the PRECISION VOLTAGES (Gate A). This means that whenever a gate signal is received, Precision Voltages will activate, shifting the pitch of connected VCOs by the selected amount.

To add variety to this, I am first running the gates through the CHANCE DELAY, with which I can adjust the chance/probability of the gates being passed through to the Precision Voltages, or ignored. This means that the transposed notes will only randomly occur, based on the position of the 'Chance' pot, here at 50%.

Precision Voltages is dual channel (A & B), but I'm using the combined A + B output, so that any semitone or octave changes that I make to channel B will be combined with those on channel A, which is the only channel being switched on or off by the incoming gates. This means I can transpose the whole sequence by the same selected semitone and octave values (here plus or minus 5 semitones) and still have the selected sequencer notes randomly transposing by the same interval.

As for the sound - just a single triangle wave into the SONIC XV Diode Ladder Filter, manually adding the wave folder to create a much more interesting timbre, and with the clocked SAMPLE HOLD & SLEW module randomly modulating the filter frequency, via the DUAL LFO\s built-in VCA, which is slowly modulating the level of the Sample and Hold from strong to nothing.

Mixed on a @solidstatelogic BigSix with @vermonagear DSR-3 Dual/Stereo (real) Spring Reverb. Both cases powered by the Konstant Lab StrongPWR, with small case using a Polyend Anywhere USB PSU, powered by the USB output of the StrongPWR. Clear acrylic Eurorack case by CASA Modular, Japan."

Waves of Evermore | A 3rd Wave 8M soundscape

video upload by MIDERA

"I picked up a 3rd wave 8M in a trade (my Jupiter 6 and Poly Evolver for their Xpander, 3rd Wave, Chase bliss Thermae, and cash) and honestly didn't think I'd like the 3rd wave very much, after having played the 24 voice desktop. Surprisingly, I am liking it more than I thought I would. Can't say I like the voice count at 8, especially if you can get the 24 voice for $2500 used... but it's not too bad. I just notice the voices dropping off on the 8M in a way I don't with other 8 voice synths like the Prophet VS. I wonder why that is, apart from maybe the 8M having a much longer release stage to the envelopes, but otherwise I have no idea.

Well, I do like it, sounds really nice actually."

Modal Electronics 001

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"The Modal Electronics Modal 001 is a duophonic hybrid synthesizer keyboard released by Modal Electronics in 2015. It combines digitally controlled oscillators with an analog signal path, giving it both stability and classic analog warmth. The Modal 001 is a 2-voice, bi-timbral hybrid synth with two oscillators and sub-oscillators per voice, a 24 dB transistor ladder filter, and over 50 waveform options. It includes a built-in 32-step sequencer, arpeggiator, and modulation matrix, plus performance controls like an XY joystick and aftertouch keyboard. In great shape! Including original box and invoice."

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Steiner EVI rare wind synth SN 0024

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Interesting note about Apocalypse Now:

"Crumar/Steiner - EVI (s/n E1/00248) Electronic Valve Instrument analogue synth, designed by Nyle Steiner of Steiner-Parker fame. This one is manufactured by Crumar, who he started collaborating with in the late 70s. All working well and generally good condition. 220V with UK plug.

VEMIA note: the EVI was responsible for all of the solo melodies on the great soundtrack of Apocalypse Now, among many other major film credits. VEMIA can collect and pack: 12GBP."

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Formanta Polyvoks SN 0689257

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via this Vemia listing

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"Formanta - Polyvoks (s/n 0689251) The most famous Russian analogue synth. All working, although has not been used for a while, so the controls really need a clean, and maybe a calibration. One crack in the case on the back left edge. 220V (UK mains lead supplied - although not the original one). Adaptor included to convert DIN output socket to 1/4' jack.

VEMIA note: the slight damage is likely caused by the interesting design decision to put a plastic case round a heavy metal chassis and adding a lid so that the whole is nearly 20kg. Needs extra-special packing . VEMIA can collect and pack: 24GBP."

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Roland SH-101 Analog Keyboard Synthesizer (Gray)

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via this listing

Additional Perfect Circuit listings

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Roland TB-303 Bass Line Synthesizer

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via this listing

Additional Perfect Circuit listings

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Twisted Electrons Mega FM Synthesizer MK1 (YM2612 chips!) SN MFM 2293

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via this eBay listing

"The most hands-on FM synthesizer on the market. This is the original MK1 with two YM2612 voice chips (12 voices in total) taken from the legendary Sega Megadrive. The MKII models now available from retailers do not have these chips, and it makes a big difference.

BEAUTIFUL DIRT! Unlike many FM synthesizers that are very clean and digital, the vintage FM chips within MEGAfm have a very characterful tone, allowing a broad sound palette ranging from beautiful plucked strings to growling distorted basslines. The sounds feel almost organic and never static.

Excellent condition. Lightly used in a non-smoker studio — all faders, knobs, buttons, and LEDs work perfectly. No cosmetic issues."

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Make Noise 0-Coast Semi-Modular Synthesizer w/ Hosa patch cables

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via this eBay listing

"The Make Noise 0-Coast is one of the most beloved entry points into patchable synthesis — a single-voice semi-modular desktop synth that draws from both East Coast and West Coast synthesis traditions without committing to either. Hands-on, deeply expressive, and surprisingly deep once you start patching.

This unit is in excellent condition and comes as a complete, ready-to-play bundle:

What's included:

Make Noise 0-Coast synthesizer

Original Make Noise power supply with all 4 international plug adapters (US, UK, EU, AU)

Original packaging

Hosa 3.5mm patch cables (assorted colors)

3.5mm TRS to DIN-5 MIDI adapter

3.5mm to 1/4" audio adapter

About the 0-Coast:

Single-voice patchable analog/digital hybrid synthesizer

West Coast-inspired waveshaping and dynamics (Multiply, Slope, Contour, LPG)
13 patch points — compatible with Eurorack CV standards

MIDI in via 3.5mm TRS (adapter included)

Works standalone or fully integrated into a modular system"

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