MATRIXSYNTH

OBERHEIM OB-MX Analog Polyphonic Synthesizer SN MX001130

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No mention of how many voice cards are installed..

Emu Emulator II + HD Sampler Synthesizer

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"Features a 20mb hard drive. Has very light wear as pictured. Works great except for the VCA button which will need to be replaced. Recently gone over by a technician and received clean bill of health. Comes with power cable and E-Mu pedal."

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Moog Memorymoog PLUS

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"Serviced a few years ago (and VERY recently, too-- see below) by Wes Taggart/Analogics who completely overhauled and updated this Memorymoog Plus (receipt will be provided to the new owner). Wes was the tech who Moog Inc. requested to overhaul a Memorymoog in support of the Bob Moog Foundation.

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EMS Synthi A w/ SPIEL DEN SYNTHI Book

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"EMS AKS Synthi. It comes with a service proof and original manual in perfect condition. It was serviced in the end of 2016 and it has been stashed away as collectors item since.

Synthi was serviced in the original manufacturer company.

You can register yourself on their page as the EMS synth owner and they take good care of you and your synth in the future."

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Ensoniq EPS-16 Plus with SCSI

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"Ensoniq EPS-16 Plus digital sampler, fully expanded with 2x sample memory cartridge, and rare SCSI interface. Very nice condition, and fully functional, includes OS disk, 10 sound disks, and power cord."

The yellow instrument, track LEDs caught my eye in these.

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SCI PROPHET VS VELVET SAW PAD

Published on Jan 23, 2019 synths colors

"No External Effect Added, As Usual..."

Sample and Hold - what is it and what can I do with it?

Published on Jan 23, 2019 WMDevices

"What the heck is a sample and hold? What should I use S/H for in my eurorack system? Are there any cool uses for sample and hold modules besides creating random unquantized pitches? What other parameters can I modulate with sample and hold? How do I make an "8-bit+ or "bitcrushed" style sound using modules already in my eurorack modular synth system?

If you are asking yourself any of these questions, you will want to check out this video!

In this video Alex takes a dive into Sample and Hold as a concept, a circuit, and a feature of the Eurorack module from WMD/SSF, the Modbox. From the basic obvious uses to more advanced ideas in synthesis.

Different use cases include random voltage generation for modulation over Pitch, Filter, and other synth parameter, as well as down sampling, LFO control, Quantized voltage generation, pulling out notes from a sequence, and creating interesting soundscapes with panning and moving instruments around the stereo field."

Make Noise Introduces the QPAS - Quad Peak Animation System

Published on Jan 23, 2019 MAKEN0ISE

"Introducing the Quad Peak Animation System, or QPAS. The QPAS is a quad core, stereo, analog multimode filter. We highly recommend using headphones while watching this video. All sounds are the direct output(s) of the QPAS."

"The Quad Peak Animation System combines the auditory enveloping of stereo spaced peaks with the animation of two or more peaks in a single channel dancing around each other or engaging in primitive vocalizations. QPAS is Quad Core, containing four identical state variable filter cores with a control system powerful enough to guide them in stereo multi-peak operation, but simple enough to encourage system integration rather than domination.

The Story of the QPAS by Tony Rolando
When I worked at Moog calibrating Voyagers, I monitored with headphones, and one of my favorite sound sensations was that of the stereo low pass filter. You might not even recall that the Voyager had a stereo Dual LPF. It is under utilized since most folks are trying to achieve classic Model D goodness, and the OG MiniMoog was a very mono instrument.

The binaural effect of a stereo Dual LPF is simple: one channel of the sound is brighter then the other. However, the effect is heightened when the filter has an exponential response and the cutoff is modulated. At lower cutoff frequencies the two channels appear to move at similar velocities, but as the cutoff frequency increases, one channel will smoothly increase in velocity, becoming brighter faster. The other channel lags behind, but eventually reaches the same velocity, and finally at high cutoff frequencies the two channels coalesce into full brightness. Where the mono LPF smashes you in the forehead with simple heavy sound, the stereo LPF envelops you, putting you inside the heavy sound.

When I developed the QMMG I learned about multi-peak filtering. Another under-utilized technique, this is processing a single channel of sound, with multiple filter channels, which are modulated, and then summed together to create a new version of the original sound. On the QMMG all four channels of filters were summed to the MIX OUT. There were a few normalizations, but they did not really ease or encourage multi-peak use. The QMMG UI was awkward for use as a multi-peak filter.

A common use for multi-peak filtering is the creation of formants, where multiple band pass filters are carefully programmed to generate human vowel sounds. This can be fun but it requires meticulous programming. If you forget about formants and just modulate until it sounds good, a multi-peak filter can be gorgeous fun. When the multiple peaks are offset from each other and modulated, the effect can be dizzying, as the sound appears to be dancing with itself, moving in many directions and yet it is still a mono sound. It is an auditory illusion.

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Eurorack Live 3 note Techno Jam - Malekko voltage block / varigate, TH 555 VCO, VCF303, TWF, BIA ..

Published on Jan 23, 2019 While We Were Sleeping

Cool case! Looks like polymer clay.

"Recorded on Load speakers so if you can play it !!!!LOAD!!!!!
0:00 - Start
5:25 - The Genie is out of the bottle

This is the third evolution of this erurorack patch. I will post the first two soon. It's a vary rich patch but not so easy to tell from this jam as it only uses 3 notes and is more aggressive.
This patch uses the voltage block to provide 16 notes each with pitch cv, filter cutoffs, wave folding and VCA envelop decay. In this version of the patch I am using the varigate 8+ to control the step on the voltage block.

Eurorack Audio signal is fully analog and consists of:
1 VCO (Fonitronik thomas henry 555) ending in two VCO.
The first:
555 - Triple WaveFolder - ‘Humpback’ Filter - DinSync VCF303 - Left moon
The second:
555 - 1973 vcf - Right Moon -

This was just for fun. will soon post 2 more videos better demonstrating the patch at a later date.

The serge vcf uses the band pass that I think sounds glories. The DinSync VCF303 is amazing and changed my understanding of the 303. Again will post more obvious videos soon.

The patch is also my first youtube video staring the wonderful Noise Engineering Basimilus Iteritas Alter. You can hear my first recording of it on https://soundcloud.com/whileweweresle..."

Mariana Trench card for the Tiptop Audio Z DSP // lush feedback delay networks

Published on Jan 23, 2019 DivKidVideo

"Tiptop Audio have done it again with another totally lush and lovely delay/reverb hybrid with the FDN (feedback delay network) based 'Mariana Trench' card for their Z-DSP Eurorack module.

The card offers reverberant delays, simple echos, chorus like FX, unstable modulated delay lines, waveguide processing and more. It's an impressive collection of FX made all the more impressive with the 3 CV inputs per card, external sample rate clock input, CV over mix and stereo analog feedback paths and the options to CV or gate through the algorithms too."