ARP 2600 plus SwissDaisyDSP Pluck Mode with distortion

video by O.Z. Hall

"The ARP 2600 is providing CV/gate to control the Z506 Swiss Daisy DSP in the new 'Pluck' mode. The Frequency Central MethAmp module provides distortion.

The Swiss Daisy DSP pluck mode uses a Karplus-Strong algorithm to model a plucked string ( think "Rings" ). This plucked string provides a great foundation for driving the MethAmp distortion module.

The Frequency Central MethAmp is a clone of the famous 'Big Muff' distortion pedal used by Hendrix and many others. I could have used the preamp section of the ARP 2600, but the MethAmp also provides tone control, as well as a 'regeneration' control that did not appear on the original Big Muff. The regen can easily cause feedback (frequency controlled by the tone control).

BTW, I love this video on Karplus-Strong synthesis:" [posted here]

Frequency Central Seismograf BD and SD

Frequency Central

"A short Seismograf BD and SD jam, just randomly auditioning some of the drum types, and tuning/distort effects. No real plan!"

"Seismograf is a PIC based drum module featuring coding by Jetroid. There is currently a choice of two PICs which may be used with Seismograf, ‘BD‘ and ‘SD‘. As you might expect, BD contains a range of 8 bass drums, while SD contains a range 8 of snare drums. The drum sounds are 10 bit encodings of some of our favourite electronic kits from yesteryear (see chart below). It is not possible for the user to load their own sounds onto Seismograf PICs, but there is a chance that we may release alternative drum sets as the years roll (!) by.

Select

This knob is used to select one of the 8 sounds to be triggered. It has a CV input associated with it, and when a jack is inserted into the CV input, the knob is used to attenuate the incoming control voltage. This CV input responds to 0V to 5V signals.

Tune

This knob may be used to detune the drum sound either upwards or downwards. It has a CV input associated with it, and when a jack is inserted into the CV input, the knob is used to attenuate the incoming control voltage. This CV input responds to 0V to 5V signals.

Distort

This knob may be used to introduce either one of two different types of distortion to your chosen drum sound. When set to the mid position (12 o’clock) no distortion is present. Turning the knob anti-clockwise will cause the sound to be progressively clipped harder, while turning the knob clockwise will cause the sound to be progressively more bitcrushed. This knob has a CV input associated with it, and when a jack is inserted into the CV input, the knob is used to attenuate the incoming control voltage. This CV input responds to 0V to 5V signals.

Secret Sauce

Try running the sawtooth output of an audio rate VCO into Seismograf’s trigger input, then wiggle the Tune knob manually, or apply a control voltage to the Tune input. Wow! What’s happening here then? When I first demo’ed this feature to Jetroid he buffered for a few minutes before performing a cold shutdown, unable to process what was happening to his code. Seismograf is acting kinda like a fliter, right? Well maybe! Probably more akin to oscillator sync really. As the incoming trigger is so fast, Seismograf only gets to play the initial part of it’s waveform, less on high notes, more on low notes. Additionally, there is naturally higher frequency content the higher the note and so forth. Whatever’s going on, we’re sure that you’ll agree that it sounds freaking awesome. More than just a drum module, right?"

"Seismograf is a PIC based drum module featuring coding by Jetroid. There is currently a choice of two PICs which may be used with Seismograf, ‘BD‘ and ‘SD‘. As you might expect, BD contains a range of 8 bass drums, while SD contains a range 8 of snare drums. The drum sounds are 10 bit encodings of some of our favourite electronic kits from yesteryear (see chart below). It is not possible for the user to load their own sounds onto Seismograf PICs, but there is a chance that we may release alternative drum sets as the years roll (!) by.

Select

This knob is used to select one of the 8 sounds to be triggered. It has a CV input associated with it, and when a jack is inserted into the CV input, the knob is used to attenuate the incoming control voltage. This CV input responds to 0V to 5V signals.

Tune

This knob may be used to detune the drum sound either upwards or downwards. It has a CV input associated with it, and when a jack is inserted into the CV input, the knob is used to attenuate the incoming control voltage. This CV input responds to 0V to 5V signals.

Distort

This knob may be used to introduce either one of two different types of distortion to your chosen drum sound. When set to the mid position (12 o’clock) no distortion is present. Turning the knob anti-clockwise will cause the sound to be progressively clipped harder, while turning the knob clockwise will cause the sound to be progressively more bitcrushed. This knob has a CV input associated with it, and when a jack is inserted into the CV input, the knob is used to attenuate the incoming control voltage. This CV input responds to 0V to 5V signals.

Secret Sauce

Try running the sawtooth output of an audio rate VCO into Seismograf’s trigger input, then wiggle the Tune knob manually, or apply a control voltage to the Tune input. Wow! What’s happening here then? When I first demo’ed this feature to Jetroid he buffered for a few minutes before performing a cold shutdown, unable to process what was happening to his code. Seismograf is acting kinda like a fliter, right? Well maybe! Probably more akin to oscillator sync really. As the incoming trigger is so fast, Seismograf only gets to play the initial part of it’s waveform, less on high notes, more on low notes. Additionally, there is naturally higher frequency content the higher the note and so forth. Whatever’s going on, we’re sure that you’ll agree that it sounds freaking awesome. More than just a drum module, right?"

(MU) Frequency Central

(MU) Frequency Central feat. Massive Modular Bundle: osc sync, PWM, Keystep histrionics, the works

2 x System X Oscillator
System X Lowpass Filter
System X Dual VCA
System X Dual ADSR

...which together forms our classic MU Massive Modular Bundle!

Well, I was going to program a sequence into the fabulous Arturia Keystep https://www.arturia.com/keystep/overview (accept no imitation), but soon realised that I was having far too much fun just wiggling and jamming out, so I hit record - the rest is history.

The patch is quite interesting, as there are two VCAs available, I've patched sawtooths via VCF and VCA, and pulses directly to the second VCA. There's a negative ADSR output patched to the second VCA, so the PWM'ed sound fades in as the VCF and VCA sound fades out.

As you will already know, these lovely VCOs feature onboard LFOs which I'm making full use of for a bit of vibrato, PWM sweeps, as well as that huge oscillator sync modulation.

Processing is via MU Stasis Leak (off camera) for some huge delay action.

If you have read this far please comment 'Huge Monster!'"



(MU) Frequency Central feat. Little Melody, Raging Bull, System X Oscillator, Stasis Leak and more!

"Finally got around to producing a MU modular video. This one feature the following Frequency Central MU modules:

Wave Runner
Little Melody
System X Envelope
System X Oscillator
Raging Bull
Stasis leak

I'm using the Boss Dr-55 (bottom left) as a master clock only. The clock is patched to Little Melody, System X Envelope, Wave Runner and also Stasis Leak (via a clock divider).

I've set up a little riff on Little Melody which is being played by the System X Oscillator/Raging Bull/System X Envelope synth voice. I'm occasionally toggling between two modes for some variation.

System X Oscillator's sawtooth and pulse waveforms are patched into the audio inputs of Raging Bull. I'm doing some manual tweaking of it's octave rotary switch. There's also a bit of fat creamy PWM going on

To modulate Raging Bull's cutoff, I'm using Wave Runner in it's sample and hold mode to modulate, System X Envelope, the triangle output of System X Oscillator, as well as some manual tweaks and twists.

System X Envelope is patched to Raging Bull's 3rd CV input, thus controlling both VCF cutoff and VCA openess(?!)/closedness(!?).

Stasis Leak is set to long delays, and is synced to the rhythm via a clock divider (off camera).

If you've read this far, please comment 'Fat and creamy'."

Klang Stadt - Fumana - Magneto & More Eurorack

Published on Apr 9, 2020 isvisible isinvisible

"A drone from the Frequency Central 'Klang Stadt' filtered through the Frap Tools 'Fumana', which is having a few frequencies modulated by the Modcan 'Quad LFO' and the two LFO's in S&H mode from the Erica Synths 'Drum Sequencer'.

The ODD and EVEN outs from the 'Fumana' are feeding the Strymon 'Magneto'.

The ALL output from the 'Fumana' is feeding the Q-Bit 'Prism'.

An arpeggio from the Synthesis Technology E350 'Morphing Terrarium' fed through the Modcan 'Dual Delay' and the Doepfer 'A-101-3 Vactoral Phaser'.

Bass drum is the Mutable Instrument 'Peaks'. Snare is the Dave Smith 'DSM03 Feedback'. Added percussion is the Mutable 'Braids' in Cymbal mode feeding the Mutable 'Elements'.

Big low pad sound is the Sum output from the WMD 'PDO', the sub and saw out from the Livewire 'AFG' mixed then thrown through the ZVEX 'Instant Lo-Fi Junky' and a Tiptop 'Z-DSP' with the 'Halls of Valhalla' card installed."

Frequency Central System X Oscillator Overview

Published on Mar 27, 2020 Synthesizer Reviews

"A not-so-brief overview of the Frequency Central Moog Unit Format synthesizer modules."

Frequency Central PRODUCT - Demo & Build Videos

Published on Aug 14, 2019 Synth Diy Guy

"Frequency Central's PRODUCT is a complete synthesizer in a single module for Eurorack! Full featured, great sounding and DIY friendly. Lot's of fun to build an play :)
Get yours at Thonk!
https://www.thonk.co.uk/shop/fc-product/
My Patreon:
https://www.patreon.com/quincas

Video and music by Quincas. Beauty shots by Edgar Lopez."

Frequency Central PRODUCT - Building the Kit !

Frequency Central WHITE FACE (Arp Odyssey 4023 Filter) Eurorack Drone & Demos

Published on Jul 27, 2019

"Frequency Cnetral White Face filter based on the Arp 4023 filter from the MkI Odyssey. See quick links below to skip to dry audio examples. First half of the video was the first patch I created with it, using the XVCO TWO and a sample I imported into Radio Music as input. The second half of the video is a pure sound demo and intended for people that are interested in the filter's characteristics. Gear used listed at bottom of description. As the MkI Odyssey came out in 1972, I've added video clips of an obscure British horror film of the same year - 'Death Line'.

I'm trying to fund the contiuation of this channel, as I'm struggling to finance it, and might stop producing regular content for it this year. Please see my Patreon page to see how you can support it for as little as $0.99 a month, or visit my Bandcamp page to purchase my music:

https://www.patreon.com/dreamsofwires
https://tomorrowthecure.bandcamp.com

Otherwise, please share my channel and posts to others, as changes in YouTube seem to have made it harder to get exposure than before. Thank you.

Quick Links:
0:00 Drone
7:05 Filter sweeps
13:22 Envelopes
17:15 Keyboard tracking (when self-oscillating)

Gear used: Frequency Central XVCO TWO, Music Thing Modular Radio Music, AJH Synth Dual Contour Generator, 2HP VCA, Arturia Keystep, Korg SQ-1, iConnectAUDIO4+ interface, recorded into AUM on an iPad, EOS2 reverb on drone. Filmed on a Lumix GH4 and iPhone SE."

Frequency Central Whiteface ARP 4023 VCF Clone

via Frequencey Central

Whiteface is based on the legendary ARP 4023 VCF module often found in “whiteface” Odyssey Mk1.
Whiteface is available both fully assembled and as a PCB/panel set.
Whiteface PCB set, and panel: £30 GBP

Whiteface assembled module: £140 GBP

Build doc for DIYers: Whiteface Build Document

For orders and queries please contact me at:

frequencycentral@yahoo.com

Frequency Central Product

via Frequency Central

"Product is a full featured modular synthesiser which you can use without patching. Or you can use it as the heart of your modular system. Each component part is fully modular, but also features pre-patched normalised signal paths for fast set up of new and exciting sounds.

Product is available both fully assembled and as a PCB/panel set.

Product PCB set, and panel: £75 GBP"

Frequency Central System 700 filter (Roland clone) Eurorack modular

Published on Jul 15, 2018 DreamsOfWires

"I wanted a bit of classic Roland sound in my Eurorack modular, hence the System 700 filter and other Frequency Central System X modules. Here it's being played via an Arturia Keystep, and I'm using the Make Noise Pressure Points as a kind of patch memory for filter cutoff settings, which I also 'play' in the first part to demonstrate this. In the middle is a verion of something I recorded/uploaded a couple of times with my old Roland SH-1, first in 2012, along with some of the original video from it. See links in video.


In the final part I overdub the first sound over the second.

Recorded into AUM on an iPad, with Audio Damage EOS2 reverb.

Check out my free album and other releases here: https://tomorrowthecure.bandcamp.com
Support my music/channel here: https://www.patreon.com/dreamsofwires
Updates and info about my creative nonsense here: https://www.facebook.com/tomorrowthecure"

Frequence Central Introduces Pro-One Based CEMvelope ADSR Eurorack Module

via Frequency Central

"CEMvelope is based on the legendary ADSR section of the Sequential Circuits Pro-One monosynth, with minor adaptations to integrate it into Euro format. Smooth and snappy! It has a gate input as well as a trigger input, the trigger input works in conjunction with the gate input for multiple triggering from a suitable controller device. CEMvelope has at it’s heart a CEM3310 or AS3310. You can source your own chip, of buy direct from me when you order your PCB set and panel."

One was featured in this video by Perfect Circuit Audio.

Kit Review # 19 - Frequency Central Meth Amp

Published on May 22, 2018 Synth Diy Guy

"In depth review with unboxing, construction and audio demo of the Frequency Central Meth Amp, a fuzz effect for Eurorack based on the classic Big Muff Pi!

Get yours here: http://synthcube.com/cart/frequency-c..."

Frequency Central - Where? (Rotary Switcher / Signal Router)

Published on May 21, 2018 DivKidVideo

"Here's a passive, mega useful, super simple, 4 to 1 or 1 to 4 switch! It's a two channel device with a nice clunky rotary switch (feels good) that takes 4 inputs and routes that to 1 output , or takes 1 input and routes that to 4 different outputs for manual and performance led switching and signal routing on the fly. The Frequency Central Where? does a good job to save pulling cables mid patch, which is always a winner in my book."

New Frequency Central Wave Runner LFO in 5U/MU

via Frequency Central

"Wave Runner is a multi-waveform sync-able LFO based on the Electric Druid TAPLFO2D family of code, but with some significant additions and improvements. The WAVERUNNER 1 PIC and code is exclusive to Frequency Central and was developed specifically for the Wave Runner, and is not compatible with similar modules.

8 waveforms:

sawtooth
ramp
pulse
triangle
sine
noise
sample and hold
stepped triangle/sawtooth/ramp

All waveforms can be skewed using the Distort knob, as well as control over pulse width of square, and distortion of the cyclic waveforms, this get you control over Noise freq as well as bitcrushing, bitcrush of S/H down to 1 bit for random triggers.

Tap sync input, for syncing to whatever. Wave Runner measures the last two incoming pulses and syncs itself to these. Multiply knob allows for Wave Runner to run at x0.5, x1, x1.5, x2, x3 and x4 of the incoming sync pulse. Freq is from stupid slow (0.025Hz) into low audio range (50Hz).

The module also features Level CV input to control the absolute output level of the LFO.

Price: £150 GBP plus shipping

For orders and queries please contact me at:

frequencycentral@yahoo.com"

Jeff Hunt DIY Synth Project - The Portal

Published on Oct 2, 2016 Jeff Hunt

"My DIY groovebox. I am a beginner. Just got started this year after watching videos by Casper Electronics. Highly recommended! I followed up by researching 9v/12v single supply circuits, and after much trial and error I came up with this final product. Many thanks to the folks on the Synth DIY forums on Facebook and elsewhere for tons of advice. Also many thanks to Nicolas Collins and his book Handmade Electronic Music for lots of tips. Feel free to ask any questions, and thanks for watching!

Square/Sawtooth/Triangle waves
16-step sequencer based on a simple 40106/4040/4067 design for the oscillator
8-step sequencer based on a 40106/4040/4051 design for drums

I did install a clock input but haven't even tried it yet. I think I may have to build an external clock adapter module to make it work right due to the way I timed everything.

Sound processing circuits based on the following designs with my modifications:

--MS20 style lowpass filter with lfo modulation by Tim Escobedo

--"Little Angel" chorus by Frequency Central

--"Funky MF" multimode envelope follower filter by Frequency Central http://www.frequencycentral.co.uk/

--"Echo Bender" delay by Casper Electronics http://casperelectronics.com/finished...

Rhythm Section comprised of variations of Andromeda Space Rockers by Eric Archer http://www.ericarcher.net/"

Frequency Central Monobloc 01 and Monobloc 02

via Frequency Central

"Panels are in for these two. I need to get the website geared up for them, but they are available as from now- call me baby!

Monobloc 01 (42HP): System X Oscillator, State 700 Filter, System x Amplifier, System X Envelope x 2, Wave Runner LFO.

Monobloc 02 (42HP): System X Oscillator x 2, System X Fliter, System x Amplifier, System X Envelope."

Lower West Side Studio 5U Demo Videos

Published on Jun 24, 2016 Lower West Side Studio

These were spotted and sent my way via John L Rice. Thank you John!

Playlist:

1. Stroh Dual Gene Splicer

"Demonstration of the Stroh Dual Gene Splicer MU Module from Synthcube.com
Details on the DIY build can be found here"

2. Frequency Central System X ADSR Fast / Slow Envelope Demo

"Frequency Central's System X ADSR - Demonstration of Fast versus Slow Envelope switch setting
Details on the DIY build can be found here"

3. Cat Girl Synthesizer CGS01 Sub Oscillator Demo

"Cat Girl CGS01 Sub Oscillator / Harmonic Sequencer Demonstration
Details on the DIY build can be found here"

4. PAiA MIDI2CV8 Duo Mode Demo

"PAiA MIDI2CV8 9700S Duophonic Mode Demonstration
FRAC module converted to MU format (+/-15V) with version 3.0 ROM and Switch 8 modification"

5. MIDI2CV8 DIN Sync - External MIDI Clock Control

"Demonstration of the PAiA MIDI2CV8 DIN Sync Mode - MIDI Clock to Control Voltage
Moog Sub 37 clock used to control Synthesizers.com arpeggiator"

6. BMC018 Analog Drum Demo

"Demonstration of Barton Musical Circuit's BMC018 Analog Drum Module. This module was built in MU format for a +/-15 volt power supply system."

Saline | Eurorack Ambient

Published on Dec 1, 2016 Björn Bommersheim

"This eurorack modular patch is dedicated to my beloved wife. Mausezähnchen, i love you more than words could tell ... so here is my love transformed into a little recording.

Patch notes:

mainly ...

Mutable Instruments Rings
Expert Sleepers Disting
Doepfer A-149-1
Mutable Instruments Clouds
Mutable Instruments Braids
Frequency Central System X Filter
Electro Harmonix Memory Boy Deluxe"

Frequency Central System X Oscillator PWM

Published on May 14, 2016 cane creek

"This is the Frequency Central System X Oscillator I built its made following the same schematics as the classic late1970’s Roland 100M VCO just instead of a pair of ua726’s it uses CA3046 instead, I didn’t realise the manual knob let you adjust the pulse width you learn something new everyday with an oscilloscope at hand. Anyway the Pulse width modulation appears to be working fine and the Square Wave is pretty much Square lol."

An Envelope Sandwich

via Frequency Central