MATRIXSYNTH

Sunday, March 15, 2026

It's Only Noise - Random Percussion with Sample & Hold, No Sequencer...just for fun #eurorack


video upload by AJH Synth Official

"Messing about with noise and random voltages. This patch is just various noise sources through various filters, frequency-modulated by sample & hold, with envelopes controlling amplitude (VCA) or affecting filter frequency. No sequencer was harmed in the making of this video.

The ‪@solidstatelogic‬ BigSix is used to mix all 4 sounds, with the ‪@vermonagear‬ DSR-3 providing stereo spring reverb for the drone and occasional sound.

Video & performance by ‪@DreamsOfWires‬

Patch Breakdown:

Drone: This is just pink noise going into the FIXED FILTER BANK 914, but with an LFO from the DUAL RVG modulating the mix between the left and right bands of the Filter Bank, creating that slow, breathing effect. The AJH SYNTH 914 has built-in, voltage-controllable mixing/cross-fading functionality, which wasn't present in the original Moog 914 on which it is closely based.

Percussion 1: White noise going to the SONIC XV Diode Ladder Filter, using its band pass output. One channel of the DUAL RVG is sending random voltages to the Sonic's Filter Frequency/Cutoff, whilst a DH-ADSR envelope generator controls its audio level in the TRIPLE CROSS (being used as a triple VCA).

Percussion 2: This starts with noise generated by the LUNAR MODULE - this has 2 noise sources with different character and tone control, and built-in distortion. Its output goes to the MATRIX VCF, which has 16 different filter modes, which I cycle through manually during the video. See out User Guide video for more information: • NEW MODULE! MATRIX VCF User Guide - Vintag...

Occasional Sound: Here I'm using the SAMPLE & HOLD module to randomly trigger the MULTI BURST ENVELOPS module. The Colour control on the Sample & Hold determines the range of random voltages generated. It is a combination of Low Pass and High Pass filter over the onboard noise that is used to derive the voltages, so turning it anti-clockwise from the centre acts as a low pass filter, reducing voltages produced to be in the lower range, whereas turning it clockwise of the centre position acts as a high pass filter, meaning voltages in the higher range. Since it is generating lower voltages here, it is only occasionally producing enough of a voltage change to trigger the Multi Burst Envelopes. If I raise the Colour control it will trigger more often.
The Multi Burst Envelopes produces a chosen number of bursts of the selected envelope shape. The built-in LFO controls the speed of the bursts, as does the Clock input, but both can be used together or independently. I'm using it to control the frequency of the ENTROPIC DOOM's low pass filter, to generate an occasional burst of filtered noise."

?Gitaar & ?TR606 & RC500


video upload by Gijs Gieskes

https://gieskes.nl/instruments/?file=...
https://gieskes.nl/instruments/?file=...

00:00 ..
02:17 The cassette player
02:34 ..
04:34 Drums and Guitar with distortion
07:03 I gave you my song




FM isn't hard on the M0SS 416 synthesizer


video upload by Floyd Steinberg

"Creator Andrew March sent me a prototype of his new M0SS 416 FM synthesizer, which is a DX7 in a guitar pedal (in simple words). See https://www.kickstarter.com/projects/...

Table of contents:
00:00 demo
00:41 hello, what's this?
01:09 hardware overview
02:23 some patch demos
04:27 typing in a Brian Eno patch from Keyboards Magazine 1987-02
06:09 creating my own patch: bell + sweep pad
11:36 the sweep pad
14:50 demo (with ZOOM MS70CDR)
16:30 conclusion, some thoughts
17:40 do the YouTube thing!

HÄLP ZIS CHANNEL
https://www.patreon.com/floyd_steinberg
https://floydsteinberg.gumroad.com/
https://floydsteinberg.bandcamp.com/"

19-Channel Analog Stereo Vocoder and Formant System


video upload by Martin Jan Köhler

See the Hoerold label below for additional posts featuring the Hoerold vocoder.

Oberheim Matrix 1000 Clone Test (Voice 2 issue)


video upload by Martin Jan Köhler

E-mu Proteus 1 Rack ROMpler

Note: links to listings are affiliate links for which the site may be compensated.


via this listing

Additional Perfect Circuit listings

Roland Fantom XR Rackmount Synthesizer w/ Memory Card

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via this listing

Additional Perfect Circuit listings

Ellitone Multi Synth Digital Desktop Synthesizer

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via this listing

Additional Perfect Circuit listings

Vintage ARP Odyssey Mk I White 2800 Analog Synthesizer Keyboard

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via this eBay listing

ARP 2600/3620 Duophonic Keyboard. Semi-Modular Analog Synth

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via this eBay listing

"The ARP 2600/3620 Duophonic Keyboard is a vintage original semi-modular analog synth produced by ARP. With 49 keys and a semi-modular design, this synthesizer offers a unique blend of analog sound and modular functionality. It features input/output ports including CV out, trig in, CV in, gate out, gate in, and trig out, allowing for versatile connectivity with other musical equipment. The ARP 2600 also boasts pedal inputs, faders, built-in effects, and speakers, making it a versatile and powerful tool for creating a wide range of sounds and music compositions. Made in the United States, this classic synthesizer is still highly sought after by musicians and producers looking to add its distinctive sound to their work."

Pic of the inside below.

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