Volca FM ambient jam session (KORG Volca FM, volca keys, volca bass)

Published on Sep 25, 2016 ollilaboratories

"If you like my stuff, please support me on http://music.ollilab.com/

I got the KORG volca FM yesterday, after connecting i just wanted to do a quick jam session. Nothing special.. some errors here and there.. but hey i love this little sucker .. a perfect fit for me. I have just turned it on.. no deep diving yet so barely scratching it on the surface as it seems to be the most complex volca to date.

You will hear more from this baby for sure! :)

Gear Used: KORG Volca FM, 2x Volca bass, Volca Keys.
FX: MS-70CDR rev on the keys + A4 internal delay and reverb on the FM, strymon timeline on one of the basses.

BoooM !"

Soundcheck 2 - Juno 6 Yamaha CS Akai s950

Published on Sep 24, 2016 Michal Patulski

Buchla in the Basement

Published on Sep 24, 2016 legionhwp

"Buchla 200e Modular Synthesizer.

http://davidtalento.bandcamp.com/"

MS20 juno CS01Sound0925

Published on Sep 24, 2016 ryouichi harada

Juno-60 as well.

Towards Automatic Music

Published on Sep 24, 2016 karl welty

"The designs are based on cold cathode gas discharge tubes (neon NE-2's and XC-18's).

The XC-18 “amplifier/oscillator” is a three terminal trigger tube circuit based around the topology of a transistor common emitter amplifier. It has a master drive knob, a bias knob, provisions for self oscillation and the components of an NE-2 LFO. Both LFO and self oscillation functions are on switches.

I was surprised to discover that it “triggered” from external input synchronously. Waveforms of frequency X would cause it to oscillate at that, or harmonically related frequencies. This characteristic is threshold adjustable using the drive and bias potentiometers. It could gate on and off based on the incoming signal. I could control it from a previously built neon module, I could run it from the audio output of a laptop.

Previous experiments with counting circuits and attempts at gating had yielded some interesting projects, but all of them had functioned in a subtractive fashion. An LFO would modulate an oscillator by stealing some of its voltage causing it to drop in pitch, if used as a gate the oscillator would ramp up to its note. I had yet to create an additive control voltage source whose output could be adjusted, and have a variety of steps of differing voltage. I'd been aware of a project schematic I'd pondered a year or so ago, from a 1959 electronics magazine. It had baffled me then but seemed worth another look. The voltage divider after the lamp is really part of the big secret. A portion of the drive voltage goes to ground keeping the lamps counting in a stable pattern (based on input conditions) and the other portion drives a CV bus which feeds the transistor oscillator. Since all of my previous attempts had been serial I chose to give this parallel idea a try.

Building up the logic portion of the board and testing showed that such a device could output a stepped varying voltage of between about +2vdc and +14vdc. Previous builds with neon oscillators had shown that such a low swing (compared to the +130vdc lamp supply) barely tickles a neon relaxation oscillator... perhaps a major second, maybe a third, but even then only at lower frequencies. It was clear why the project schematic had a transistor tone generator. I chose to veer from my pure neon path for the sake of an experiment, as I knew that the XC-18 module would function if driven by a solid-state master oscillator... I had a bag of MilSpec LM-118h opamps, seemed good fodder for a test. Found a simple circuit and built a prototype, found another interesting vco circuit and wasted a week or so, learned the thing I'd already built was infact a vco awaiting CV, tried it... and yup, it changed pitch with CV input. I made some mods to the circuit to widen its range. It was time to start pulling all the sub-assemblies together.

The original 1959 project was intended as a bench toy. A device which would create a series of pitched patterns which would cycle and alternate over time. The capacitor section can be re-drawn in the shape of a six pointed star and any given lamp “point” has three caps leading to its rail. It is not a standard sequential counting circuit. The wide range of the resistor values in the original were intended to further throw off its timing and behaviour. Its a primitive computer based on a state table comprised of capacitors feeding lamps, the resistors determine the voltage on a lamp leg and/or the amount allowed to ground through two paths... one of which passes past a transistor vco and causes it to alternate in pitch.

In my re-design (instead of fixed resistors) I added a on-off-pad switch to each lamp leg and an input pot. They are fed via a bus from a master pot with an associated med-lo-hi switch. Widely varying voltages can be fed to any combination of the six lamp legs, which can emphasize their duration in a pattern or otherwise alter the manner the lamps fire. After the lamp is a 470k/51k voltage divider each leg of which also has a 1N4148 diode in series. The 470k path buses to ground allowing the lamp to function more normally. The 51k path goes to another on-off-pad switch and associated pot, bused to a master pot and med-lo-hi switch and sent to a 1/4” jack on the panel. The control voltage output of any given lamp leg is a function of is combined input drive and cv mixer output settings. They are interactive and adjusting the device can take a bit of patience. The variations available are vast.

I substituted my opamp based oscillator for the transistor variant shown in the original. It has a CV input 1/4” jack, tuning and range scaling pots, a volume pot and 1/4” output jack. It generates a sharkfin squarewave and is rather pleasant in its own right. The waveform works quite well for triggering the XC-18 module."

Tom Oberheim Two Voice Pro Dual Analog Synthesizer with Sequencer 2016

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Sébastien Léger - Summer is Over...

Published on Sep 24, 2016 Sébastien Léger

"Sweet little melody...

Patch notes:
Using Mysteron by Make Noise as main sound source, looped and sequenced by two Qu-Bit Octone. Copy of Mysteron audio going to Mutable Instruments Rings.
Keyboard is Arp Odyssey.
Effect used on Arp Odyssey from Intellijel Rainmaker and TC Electronic Hall of Fame.
Effect used on other sounds by Erica Synths DSP, Qu-Bit RT 60, Audio Damage Dimension.
Filter by Make noise MMG.
Mixer by Intellijel DubMix & Cwejman."

Meng Qi - Duet With Myself

Published on Sep 24, 2016 Meng Qi

"a self-contained eurorack system
instant and tactile like an acoustic instrument

1) hardwired connections between Folktek Matter and Meng Qi Seashore;

2) tonal / atonal audio from Skot Wiedmann HYVE / IFM Mr.Grassi, travels thru body into various points within Matter;

3) left/rightmost inputs on Seashores are equipped with jacks, thus touch-controlled external signal injection / feedback are convenient;

4)Meng Qi DPLPG provides smooth vactrol based voltage control of volume and tone;

5)Recovery Effect Cutting Room Floor offers pitch shifting looping / delay / faux reverb, and is sensitive to incoming volume;

6)bottom jacks on ADDAC Size Matter is connected to a D-Class amplifier, a hefty built-in surface transducer provides strong sound and vibrations to feel with body.

it went through a few revisions.
I hope it stays in the fine line between redundancy and scarcity, like a well designed standalone instrument.

mengqimusic.com"

What are Presets for ? Access Virus Indigo Original (Virus B)

Published on Sep 24, 2016 100 Things I Do

"First things first, there is nothing wrong with presets. Many very talented people spend a lot of time creating them and they can sound great and very inspirational... but the fun is always in creating your own :D.

I set myself the task of no more than 1 minute to get to a very different sound than the one I started with.

I have been asked a few times to show more of the Access Virus, so here it is. If your looking for a good low budget hyper flexible synth, for the current price its gold. You can have the Virus B currently for around $500usd or less! I paid $600AUD for mine, super cheap. Maybe not as cool and hip as the Virus TI's but very very close in sound quality and still some very flexible features.

From a time where Blue LED's were still considered new, exciting and a pretty neat idea on anything :D"

All iPad Rave Jam. Moog Animoog, Sunrizer, Patterning, Genome MIDI

Published on Sep 24, 2016 exnihilo415