MATRIXSYNTH: Friday, July 22, 2022

Friday, July 22, 2022

The Octave CAT synthesizer: a detailed demo and tutorial

video upload by CatSynth TV

"We present a detailed look at the infamous Octave CAT synthesizer. Released in the mid-1970s, it was similar in many ways to the Arp Odyssey and Minimoog, but had several unique features such as blending waveforms, sub octaves, and cross modulation. These give it a unique sound that ranges from powerful analog synth bass to wild combinations of frequency modulation. And of course, it is called "CAT" so we have to review it. This is the way.

00:14 History of the Octave CAT and Octave Electronics
01:17 Presenting the Octave CAT MK 1
02:13 Oscillator demos
05:50 VCF demos (including modulation)
10:17 Oscillator hard sync
12:43 Frequency Modulation

Shoutout to for overhauling our CAT Mk1 to get it ready for this demo and use in upcoming music projects.

Please consider supporting this channel to help us bring you more synthesizer tutorials and other content. Patreon:

EEHs Natural Sound Store Unit Zaunkönig Brochure - The FIRST Sampler w/ Realtime Time Stretching

This one was spotted and sent in via M Me. I beleive this to be the first post to feature the Zaunkönig/Zaunkoenig. EEH also made the Banana and the DS 500. I just like saying they made the banana. See the EEH label for more. Why it wasn't yellow or even yellowish green, we will never know...

via this auction

"Original brochure, allegedly only 2 devices were built. FIRST sampler with realtime time stretching. Was bought by Akai and in a stripped down version, without realtime, for the S 1000. So the wren is the father of the Akai S 1000"

Update: you can find an article in German on the Zaunkonig here.

Update2: scan of the brochure added below along with a close-up pic of the front of the Zaunkönig, in via an anonymous reader. Also some interesting background added.

Hardware Jams Fest '22 - SynthAddict's set

video upload by SynthAddict

"HWJ SynthAddict 15 min set (with live tweaks)

Fun use of my new buddy the Maschine+ with lots of custom tweaks and special samples.

As I had to bridge 3 separate jams made tonight, I played a live 'bridging' sound from my MC-101 as I loaded each set."

Roland SP-404 MK2 : Ambient Workflows and Techniques for Relaxing

video upload by Perfect Circuit

"Check out more relaxing techniques on our blog :
Grab a 404 on the site :

Join our pal Brian for a relaxing look at some of the 404's capabilities for creating ambient textures, soundscapes, and interesting unquantized rhythms!"

Pink Loquelic Iteritas limited edition Eurorack module from Noise Engineering

video upload by Noise Engineering

"We made a special limited edition Loquelic Iteritas to benefit parrots. We released this module on July 21, 2022, and we made under 100 of these.

Only a few left! Get your Pink Loquelic Iteritas now:

Loquelic in style with this limited edition glossy pink module. And know that you are doing a good thing: 100% of the proceeds go to parrot conservation in Central America through our partnership with the Macaw Recovery Network. The Macaw Recovery Network protects endangered parrot species across Costa Rica.

Unlike our other conservation campaigns, which are ongoing, this is a limited-time offer: once the pink Loquelics sell out, it's done, but 100% of the net proceeds from these sales will go to the Macaw Recovery Network. Buy a module, save a parrot!

More about the Macaw Recovery Network here:"

Bad Gear - Circuit Mono Station

video upload by AudioPilz

"Welcome to Bad Gear, the show about the world's most hated audio tools. Today we are going to talk about the Circuit Mono Station. Is Novations analog mono synth groovebox and lovechild of an OG Circuit and a Bass Station 2 nothing but a photoshop fail? What went wrong?

00:00 Intro tune
01:19 Overview Novation Circuit Mono Station
01:55 Paraphony, oscillators, ring mod, oscillator sync
02:42 Synth engine: filter, overdrive, distortion
03:14 Modulators: envelope, LFO, mod matrix, PWM, mod seq
03:38 Sequencer section: OSC1, OSC2, modulation
04:13 Velocity, gate
04:26 Patches, patch flip, sessions
05:01 Connectivity, CV/Gate, I/Os, midi
05:24 Firmware updates, pricing history
05:45 Hate
06:07 Jam 1
07:08 Jam 2
08:03 Finale
08:33 Verdict"

Icebox Arcade Fremont, Seattle WA Event Tuesday w/ Red Means Recording, Ezbot, Mike303

video upload by Red Means Recording

That just might be the first human burp featured on MATRIXSYNTH. For synthetic burps you can find a few posts here.

"This is my pizza party rack, based around the Bastl Pizza oscillator, TC Helicon Perform VE, and Roland TR-8s. I have a show coming up at the Ice Box Arcade in Seattle on July 26th with EZBOT and Mikey303 and you should come because this is what I'm doing and it's pretty fun and there are games and friends. Hope you enjoy my hot pizza sweats. Come see this live at Ice Box Arcade in Fremont on the 26th of July 2022 at 7pm if you're nasty."

The Pizza Party Performance Rack

Cybertrance V1 For Roland Jupiter 4

video upload by Igor Leus

"Buy Link! -

CyberTrance V1 For Roland Jupiter 4 software synthesizer – is a bank of 64 custom made presets by NatLife. The soundbank combine a mix of Cyberpunk and Trance vibes, but at the same time are great for Synthwave, Cinematic soundtracks and other Electronic Music. It made with a maximum potential of this machine.

This library has all kinds of patches, with which only one Jupiter 4th is enough for you to write a finished composition. These are powerful Bass sounds, strong Leads and melodic Plucks, deep Pads, sharp Transition Effects and of course modern Progressive Arpeggios.

Get ready for a powerful and goosebumps sound!

Soundset contains 64 Patches, which:

7 Leads
6 Plucks
12 Bass
6 Sound Effects
8 Synths
11 Pads
14 ARP’s

Compatible with Roland System-8 as Plug-Out."

Error Instruments Brain damage Mixer bricky? 

video upload by errorinstruments paul tas

You might remember the eurorack module.

PIN Electronics Portabella Synthi MK III 2022 (EMS Synthi Clone)

via this auction

"Comes with 32x pins in total, authentic EMS colored inlets (installed by me) from EMS Cornwall & the U.S. power cord. Also Including EMS, VCS3, Delia Derbyshire & Portabella patch sheets."

Note the listing price is $7,800 + $150 shipping, while Pin Electronics has them for 6499 € exc. VAT & shipping.

Posting for the pics and a reminder they are out there. See the links for more info.

Dtronics DT7 Controller for Yamaha DX7

via this auction

I believe the listing is for the controller only. Posting as I thought the shot was interesting. Most pics are posed so to speak. This one kind of brings you into the raw space. It also gives you a sense of size and positioning in this particular case. You don't see them too often so thought it worth a post.


via this auction

It almost looks like the octopus tentacle & crab claw are coming out of the Liven.

1975 Yamaha SY-2

via this auction

"An underrated synthesizer, the SY-2 has a really fun vibe to it. Imagine a preset based monosynth with a CS series tone to it. In very good cosmetic condition, comes with lid and legs."

Vintage Roland GR-300 Guitar Synthesizer SN 424885 w/ Craig Anderton Mod & Plastic Cover

video upload by Lyricon

"Quick and rough test of functionality of a Steinberger GL2T-GR electric guitar (equipped with the Roland 24 pin controller circuitry) and a Roland GR300 Analog Guitar Synthesizer."

via this auction

"This is an original and fantastic sounding Roland GR-300 Guitar Synthesizer from the 1980s. It has the Craig Anderton external Vibrato controller input modification so you can control vibrato depth from a control voltage foot pedal.

It is in very good physical condition and works perfectly. It still has the protective plastic cover. I’ve had this unit since 1994 and only used it a few times a year in a studio."

Ave Creatura Noctis (preview) - MFB Dominion 1 [analog synthesizer]

video upload by Sensenwerk

"All synthlines on the MFB Dominion 1."

NYMPHES / An Outdoors Sacred Performance by OMEGA dB

video upload by Dreadbox

"We are so happy and excited for this collaboration with OMEGA dB

'It's wonderful to be able to take your favourite synths with you and be inspired by magical places. This time, I have brought with me my Dreadbox NYMPHES with OP-Z and a Powerbank to power it.

I have been to “L’Ermita de La Trinitat”, a sacred place on the heights of the “Parc Natural del Garraf” in Sitges, a beautiful place with views of the Mediterranean Sea surrounded by pine forests.

This was a part of my happening. From here to Greece with love.'


TASTY CHIPS GR-1 - Scratching the Surface

Part 1 (ambient) video upload by Megan Leber

"This is the first part of a little series I'll record with the Tasty Chips Electronics GR-1. I loooove granular synthesis and this machine is a beast! I'm just scratching the surface here, so I'll definitely record some more videos in the future where I'll be using more complex settings (and the modular of course!). Enjooooy!"

TASTY CHIPS GR-1 - Scratching the surface - Part 2 (techno)

"The long awaited part 2! Jamming with the Tasty Chips GR-1 (not MIDI synced) and playing with the LFO's. Later I recorded an improvised piece with my Roland TR-8S to give it some context. Enjoy!"

Haken Audio - EaganMatrix Module - Testing Processor Presets

video upload by EaganMatrix Programming

"The HakenAudio Eurorack EaganMatrix module is not only a CV and MPE midi controlled physical modelling synth (supporting many other sound generation models) but also can function as a DSP audio processor. The Module comes with a number of Audio Processing presets in the 'Processor' category that you send Audio to through the L/R Audio input ports. These range from reverb and delays to Karplus Strong and FeedBack Network Delay processing options (many more options will likely be available in future releases and you can easily create your own in the EaganMatrix (certainly a heck of a lot easier than writing your own DSP processing code).

I thought I'd test them all using a filtered, envelope generator shaped noise pulse (which is ideal for some of the Karplus and Delay network examples). Some of them don't do much on a short noise pulse so at the end I run them on constant filtered noise as well.

No talking on this one. Just stepping through the presets sending the noise pulses and then playing with some of the Macro Controls that change various parameters of them in real time - which you can do from the module with the Rotary or through the Haken Editor or using a Midi Controller. But this test is all CV and Audio controlled."

KEITH EMERSON'S 1973 MODULAR MOOG - Handmade Miniature 1/6 scale

video upload by Ronaldo Lopes Teixeira ROLT


Patch n Tweak
Switched On Make Synthesizer Evolution Vintage Synthesizers Creating Sound Fundlementals of Synthesizer Programming Kraftwerk

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