MATRIXSYNTH: Friday, July 31, 2020

Note: auction links on the site are affiliate links and help support the site if you make a purchase. See the privacy policy for details.

Friday, July 31, 2020

elta music pm-02 exploration


"the elta music pm-02 is a eurorack version of the recent polyvox-m desktop unit. it is a simplified version of the original polyvoks synthesizer; possessing similar oscillator and filter circuitry.

this synth is my first in-person exposure to the polyvoks family. it certainly lives up to its reputation. the oscillators are raw and dirty (though cleaner when patched out to other modules). the filter is dirty and has the most violent resonance i've ever heard. the envelope is nice and snappy. the unit is gorgeous and built like a tank. it has enough jacks to easily incorporate other modules.

while i enjoyed using the pm-02 i found the filter lacking in musicality. it's generally rough and dirty (not a bad thing); and adding resonance just makes it louder and dirtier. i was pleased by the saw and square oscillators. the square can sound nice and woody. to me the triangle oscillator sounds more like a muted saw than a triangle. i struggled to create bell-like tones for example.

due to the general character of the filter i've decided to look at other options; but if you like the tone of this synth it's an excellent choice. it's well built and excels at hard, sharp, dirty, nasty sounds.

filter sweeps (low pass) at 0:15
filter sweeps (band pass) at 5:26
saw arp at 8:48
bass line at 12:02
triangle arp at 16:11
band pass lead at 21:08

patch notes:
elta music pm-02 thru dod rubberneck, walrus audio fathom x2, strymon dig and boss re-20

disclaimer: module was purchased out of pocket for music production purposes"

Analog synth vibrato with hand movement

GS Music

"We connected an accelerometer to the pitch CV input on the new GS Apollo synthesizer and this is what we got.
The accelerometer module was slightly modified. Some filters were added in order to achieve a better response.
No modulation wheel or aftertouch was used."

Patch of the Week 69: Sub Bass Kicks


"In our continuation of 'beyond bass,' we’re checking out how low volca bass can go with sub-bass kicks and other percussive sounds."

Korg Patch of the Week posts




00:00 - Unboxing
01:16 - Optigan Mode Demo (Cha Cha Cha)
03:51 - Orchestron Mode Demo (Bass Clarinet)
05:03 - Chirp (Bossa Nova Style)

"Here's a quick unboxing & demo of Quilter Labs' new Panoptigon Chord Controller, available for purchase here

This is a small MIDI controller that replicates the functionality of the Optigan chord button panel. You can use it in conjunction with a standard MIDI keyboard to control Panoptigon. You can also use it with iOptigan (requires an additional 3rd party MIDI to Lightning interface) or any other MIDI sound module.

In "Optigan" mode, the PCC controls a standard Optigan format disc. In "Orchestron" mode, the chord buttons send chord MIDI data to play simple sustained chords to either an Orchestron disc or any MIDI sound module. In "iOptigan" mode, the PCC is mapped to control the iOptigan app ( All three modes can be set to either "Normal" for momentary operation or "Radio" for latched operation.

In this video I demonstrate the "Optigan" and "Orchestron" modes. A full demo of the 'iOptigan' mode will be coming soon.

At the end, there's a nod to all the Minecraft / Little Big Planet fans- a quick improv on 'Chirp.' :)"

Return of the Purple Moog Little Phatty Rare Analog Synthesizer Rik Marston

Rik Marston Official

#moogpurplelittlephatty #moogmusic #mooganalogsynthesizer
"Return of the Purple Moog Little Phatty"
Synthesizer Demo by Rik Marston
***Watch in HD!!*** **Turn It UP!** ***No Talking!!!***

The return of the RARE Purple Moog Little Phatty!
I prayed & prayed to be able to get one of these again...
I sold everything in the studio that could move....
I am thankful, grateful & blessed to have her back!
I am thankful, grateful & blessed to have YOU as a subscriber!
Thank you my friends, YOU ROCK!

VCS3 (Cloney) and Ventris Dual Reverb goodness


"Sometimes exploring one machine at a time is rewarding to me"

Open Amiga Sampler - NEW Amiga hardware announcement!


"Introducing the Open Amiga Sampler - an affordable, open-source, 8-bit/mono, parallel port sampler for the Commodore Amiga featuring stereo mixdown and an input preamp with physical gain control.

Schematics, documentation, parts list and custom PCB files are available at:

By mnstrmnch and syphus/Up Rough

Music: syphus/Up Rough"

This one is in via @deejayiwan

via github

"What are Amiga samplers?

Over the course of the Commodore Amiga's active lifespan, a great many samplers (also known variously as sampler carts/cartridges, sound cards, audio digitisers, audio interfaces, etc) were manufactured to exploit audio capabilities that were unmatched by any other home computer of its time. In 1989 an Amiga 500 with a cheap 8bit parallel-port sampler gave you the means to produce professional sounding music in your bedroom for a few hundred pounds - about the same as it cost to hire a recording studio for a few days. Acid house and techno were exploding; hardcore, jungle and drum'n'bass were just around the corner. Even if your sample-based Amiga music wasn't quite professional sounding by the standards of audiophiles and hi-fi enthusiasts and the old-fashioned music industry, it was probably good enough for underground clubs and illegal raves! Countless dance, bass and electronic music superstars got their start with an Amiga and a cheap sampler.

Some samplers back then cost a lot of money and offered advanced features or higher quality than the rest, although there was (and still is) a fundamental limit to the sound quality it's possible to squeeze out of an Amiga. This project is a clone of the typical low-budget sampler design that flooded the market in the late 1980s and early 1990s. They're often referred to as 'carts', but they're actually not cartridges: they're usually small 25-pin parallel port dongles whose circuit boards and connectors are housed in the type of plastic shell that systems like the C64 and the VIC-20 used as cartridge housings. But some manufacturers called them cartridges, and we've been calling them carts for decades, so we'll stick with that. Some live in separate boxes attached by a parallel extension cable to the Amiga's printer port, and some connect to both parallel and serial ports, or even to a joystick port, as a hacky but clever way of getting up to 16bit resolution. Interesting stuff, but out of this project's scope for now!

The common features of these cheap sampler carts were:

8bit sample resolution
Stereo or mono
Typical maximum sampling rate of ~55Khz in mono (~37Khz for stereo)
Usually claimed to feature impressive SNR, anti-aliasing filters, and special ~90Khz frequency modes (sometimes these claims were even true!)
The feature set of the Open Amiga Sampler is:

8bit sample resolution
Typical maximum sampling rate of ~52Khz
Input amplifier with variable gain"

See github for more.

Send Me An Angel by Real Life COVER performed on an Oberheim OB-8 and Sequential Pro 3 with vocals

Sean Christopher Evoking Emotion with Synthesizers

"Oh how I loved this song and album (Real Life's Heartland) back in the 80's as a teenager, and Send Me An Angel has to be in my top ten pop songs of that entire decade. In fact, I recommend that you buy Heartland if you love this song. Needless to say, I've always wanted to cover this piece and finally got around to it. For synth bass duties I used my Sequential Pro 3 and for everything else synth I used my beloved Oberheim OB-8 which did a fantastic job recreating those 80's synth patches. For drums and guitars I used NI's Kontakt and Battery.

A big thank you to Tim Murphy for providing the lead vocals. Until this cover, Tim has not sang for over 20 years, but with a little coaching from my wife gave us a great performance IMO. Also thank you to my wife, Ann Marie, for providing the "Angel" vocals. I provided additional bass vocals underneath the chorus and 2nd verse.....which luckily for you the listeners isn't too loud. LOL"

And the original followed by the '89 version with a Sequential Circuits Prophet-5

Real Life - Send Me An Angel [HQ/1080p]

Luv Puppy

Real Life - Send Me An Angel '89


"Real Life official video for the Australian release of Send Me An Angel '89. The US version was a reworking of the 1983 video where they edited out original keyboardist Richard Zatorski. Real Life had released Send Me An Angel '88 before they remixed and re-released it again in 1989. This version reached No.51 on the Australian Top 100 chart but got as high as No.24 in Melbourne."

Quick Jam: IO Instruments Eurorack Modules

Perfect Circuit

"IO Instruments has some interesting eurorack modules out and some more on the way. We put together this small system with a few of their modules including the Himalia which is a sound source with 5 generators including filtered analog noise, digital noise, a square wave oscillator, sampler with lots of built in drum sounds and a chord generator. IO also has basic modules like the Themisto VCO, Euporie VCF, Pashiphae ring mod, Sinope VCA and Sponde mixer that add clever and useful extra features. All of the IO modules also have colorful knobs and a halftone paint job that makes them look great together.

We added in a Noise Engineering BIA for the kick, Intellijel Quadrax for envelopes and a Malekko Quad VCA for mixing and extra VCAs. Everything is sequenced with the Arturia Keystep Pro.

#PerfectCircuit #Eurorack #Synthesizer"

An overview of new modules and collections in VCV Rack - July 2020

Omri Cohen

You can find additional resources available from Omri Cohen at

Here are the patches -

00:00 - Alright Devices
02:01 - BogAudio
04:51 - Count Modula
07:09 - Iggy Labs
09:14 - RackWindows
13:14 - Squinky Labs
17:23 - Unless
21:22 - Miscellaneous 1
22:39 - Miscellaneous 2

Korg Mono/Poly Monopoly Mp4 Analog Synthesizer SN 37140 w/ Original Gig Bag

via this auction

Waldorf Rack Attacks

Yellow via this auction

Blue w/ updated display via this auction.

The seller had a blue one with default display here.

Vintage Roland TB 303 Bass Line Synthesizer SN 242600

via this auction

How to create that DX7 harmonica patch on any FM synthesiser (Elektron Digitone)

Floyd Steinberg

"Here's how to create the DX7's "Harmonica" patch on a 4-operator synth like the Elektron #Digitone. Table of contents:

00:00 bla bla
00:38 choosing an algorithm
01:02 X|Y ratio
01:12 FM amount
01:41 operator ratios
02:32 amp envelope
03:06 modulator envelopes
03:52 low pass filter / envelope
04:43 band pass filter
05:00 lfo setup
06:03 operator tuning
06:20 harmonics
06:45 controls setup (pitch bend, aftertouch)
07:46 some ideas on further tweaking and fine-tuning
08:19 overview / demo
08:42 conclusion"

Get 7% off on DistroKid with this link

Practical Patching with After Later Audio's G&T!


"Want to turn your boring old envelope into a cycling envelope? Maybe you want a button to become a toggle? Need your gates delayed? Need to convert triggers into gates or gates into triggers!? Well look no further! Gates and Triggers by After Later Audio has got you covered and in this video I'll show you just what I mean...

If you want more and feel inspired to support me, please visit my Patreon page: ►"

Noise Engineering Desmodus Versio: Stereo reverb Eurorack module and DSP platform

Noise Engineering

Preorder Desmodus Versio NOW:
Desmodus Versio ships August 7.


0:12 Preview
1:23 Demo with Rings
1:50 Demo with Manis Iteritas
2:23 Demo with Basimilus Iteritas Alter (BIA)
2:48 The seven parameters
5:28 Two mode switches and FSU (Fuck Shit Up)
7:22 The CV controls
7:50 DSP Platform and firmware info
8:03 What with the bats?
8:25 JAM

And the press release:

"Price/Availability:​ MSRP: US$345, In stock, shipping August 7, 2020

Los Angeles, California: Noise Engineering​ announces the release of Desmodus Versio,​ a 10hp stereo in/stereo out synthetic-tail generator reverb with a generous helping of attitude. Seven CV-controlled parameters and three reverb modes make creating wild reverberant spaces a joy. Pre-orders open July 31. ​Desmodus Versio​ ships August 7, 2020.

Desmodus Versio​ is Noise Engineering’s take on reverb. It features true stereo in and out, seven CV-controlled parameters, and three reverb modes. The parameters are designed with performance and immediacy in mind. Morph between almost infinite reverby sounds with the twist of a few knobs; three reverb modes offer more texture and space options with clean, distorted, and pitch-shifting shimmer settings. ​Desmodus Versio​’s feedback control creates regenerations that never die. Turn up the control and the reverb ducks when it receives signals at its input, useful for creating sidechain ducking and atmospheres for percussion. Hit the FSU button to “freeze stuff” up. No input? No problem. Hit FSU to inject a tiny bit of noise to stimulate the tank and engage the reverb. Whether you make hard-hitting techno, ambient, industrial, sound design, or something else completely, ​Desmodus Versio​ has a place in your rack.

Desmodus Versio​ isn’t just a reverb, though: it’s a DSP platform. Its firmware can be changed via USB, so it can be transformed into a completely different effect with new firmwares coming late 2020. Are you programming savvy? Open-source support will be released later this year.

And what’s better than buying a new module? Supporting a great cause at the same time! A portion of proceeds from every ​Desmodus Versio​ sold goes to Bat Conservation International. Find out why bats are not only cool but also an important part of our ecosystem at Bat Conservation International’s website, ​​."

For more info, visit your local retailer or Noise Engineering's website:

Sequential Pro 3 TC Electronic Trinity T2


How to make HEAVY Electronic Music [Novation Circuit]

Gabe Miller Music

"I show how to make heavy bass music (trap, dubstep, riddim, electro, etc), with a bunch of Novation Circuit specific tricks and hacks, as well as sound pack recommendations."

[patch] Delayed Layers (Blofeld)

Synthesizer Video Service

"Here is one of my sounds from the Frequture Blofeld sound banks (

In this video you can see how to create two different sound layers with the Waldorf Blofeld but without using the multi mode! Plus, one of these layers has a little delay so that you get a very interesting patch.

If you want to get the empty Blofeld patch sheet (PDF), scroll down on this page:"

Subharmonicon & Hydrasynth Vignettes


"In three vignettes, Synth and Software contributor Chris Stack demonstrates interactions between the Moog Music Subharmonicon and the Ashun Sound Machines Hydrasynth."

Sonic LAB Elektron Model:Cycles Review - FM Groovebox


"Model:Cycles is a six voice FM Groovebox which uses the concept of machines, like many Elektron instruments, with the focus on FM synthesis. The sequencer follows the Elektron concept of parameter locking - which they have pioneered and made extremely usable - with each step (up to 64) being an independent state or snapshot.
Edd Butterworth takes a look for us."

The Moog Subharmonicon Is Music and so Are You

Red Means Recording

"Music is rhythm, pitch, pitch relationships, and timbre. The Moog Harmonicon is a great example of how these all come together in one of the most interesting performance synthesizers I've touched. Let's talk about it."

El Diablo (PO-33 K.O! jam)

Audio Wanderer

"Jamming some sort of frontier blues with the PO-33 K.O! The mini sampler from Teenage Engineering, here with a customized 3D printed case with rubber pads."

Quasimidi Technox w/ New Blue Display

via this auction

"Classic 90s rave romper. It has the Born Slippy pad patch!"

Sequential PRO 3 Analog Digital Hybrid 3-Voice Paraphonic Synthesizer

via this auction

"**Iron Meteorite NOT included in sale**"

This one appears to be Rik Marsten's previously featured in videos here.

Custom Red Access Indigo 2 Synthesizer

via this auction

"This is an amazing board with great, full sounds. I've gigged all over on it and used it on records by Bilal, Freeway, DJ Jazzy Jeff, Vivian Green, and many others. Functionally it works great, just a little physical wear and tear over the years."

Elektron Machinedrum SPS-1 MKI Drum Machine Synth

via this auction


via this auction

ET Phone Home Roland Jupiter-8 SN 141266

ET The Extraterrestrial "ET Phone Home" KITTY Woodson TERRY / Music Video

Kitty Terry

via this auction

"This Jupiter 8 is in mint condition and serviced by certified Roland repair tech....was used in home studio and stored in closet since 1985....In beautiful condition..Serial #141266...We used it on our hit ET Phone Home on YouTube Kitty Terry ...Just time to find someone who will make some records with it...George flipped out!!"

Oberheim OB-8 Synthesizer Factory Midi

via this auction

"Recently serviced and is in full working condition."

Black Corporation Kijimi 2019 Analog Polyphonic Synthesizer RSF PolyKobol Kobol Clone

via this auction

ARP Sequencer Model 1623 ( Reissue )

via this auction

"This is a clone of the original. Where the original ARP 1601 had fader caps the clone has LED faders."


via this auction

"Late '70s Vintage Analogue Single Oscillator Bass Synth. It features 37 full-sized keys, a multi-mode 12 dB/Oct resonant filter, an LFO with sample and hold, and an external audio input you can route through the VCF or VCA sections. Serviced prior to sale."

Waldorf Micro-Q Keyboard w / Case

via this auction

North Coast Synthesis - MSK 009 / 011 / 012


"Behind North Coast Synthesis Ltd. is Matthew Skala, who got into hobby electronics as early as the 1980s. Later he studied later computer science and spent about 15 years in academic research and teaching at universities. In 2017, Matthew abandoned academia and established North Coast Synthesis in Toronto. So, you can expect some thoughtful and creative designs, like the Leap Frog VCF, which provides the steepest filter slope possible: 61 dB/octave – and for quite some time it was the only module North Coast Synthesis offered. Now there are three more modules available, the MSK 009/011/012. While the MSK 009 is another filter, the other two are an ADSR and mixer.

The MSK 009 multi-mode filter and rectifier packs an entire nest of sound-shaping features into compact filter module. It's a two-pole state-variable filter based on a unique integrator design which stores energy in both inductors and capacitors depending on the frequency range. It offers warm sounds with a wide foundation and ever-shifting timbres. This is a somewhat unpredictable filter, it's a lot of bite for the buck, and for the rack space.

The MSK 011 is a nice utility mixer with versatile sound possibilities and a minimalist design featuring just six transistors. The module is suitable for both audio and control voltages, with bonus features like positive and negative offset; simultaneous DC- and AC-coupled outputs; maximum gain a little over unity that extra push. It can also function as a transistor distortion effect, by offsetting the signal until it clips – this also allows for creating some interesting waveforms by mixing and offsetting different input signals – as seen in the video.

The MSK 012 is a traditional ADSR envelope generator module that also covers percussion notes like an AR envelope, organ notes like an ASR -always musical, with lots of.
The video covers only a part of the sonic possibilities but should give a good impression of what you can expet from all three new North Coast Synthesis modules."


In case you missed the Polivoks posted here, and are interested, it has been re-listed.

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

© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.