ARP 2600 Sequence Jam

video by O.Z. Hall

"ARP 2600 provides the lead.
Z506 Swiss Daisy DSP provides the 'pluck'.
Intellijel Metropolis sequencer drives the Swiss Daisy DSP.
Frequency Central MethAmp provides overdrive as well as a voltage controlled tone with "regen"eration (resonance/Q).
ES FV-1 modules provide digital delay and reverb.
This module is based on the Electro-Smith.com FV-1 submodule. RecklessExperimentationAudio.com provided the prototype PCBs and panels. Thanks Mikhail!

I hope you enjoy this jam."

See additional posts below, here.

All the Eurorack MIDI outputs one could ever want

Reckless Experimentation Audio LLC

"I want to use MIDI more in my synth, but the modules I made in the past took up too much space. I think I can do better. In this video I plan on making a more compact MIDI to trigger and MIDI to gate / CV module. And I make it expandable without needing more than one MIDI cable."

DIY eurorack touch controller build

Reckless Experimentation Audio LLC

"Ever wanted to build a eurorack touch sensitive controller? Well so have I, so lets build one today."

Eurorack Panel Lights

Published on Jun 3, 2020 Reckless Experimentation Audio LLC

"So say you want to get the knobs a wiggle at night, but its dark and you don’t want to turn on the lights in the room? Will how about this? Just enough light to see what your doing. So lets build it."

Breadboarding a Eurorack Sample and Hold

Published on Mar 14, 2020 Reckless Experimentation Audio LLC

"In this video I am going to go over a sample and hold circuit, and how to build it on a bread board.

For those of you have haven't seen it in the lofi module here is the first video" [posted here]

LoFi Eurorack Module Prototype Part 1: Wow and Flutter

Published on Nov 25, 2019 Reckless Experimentation Audio LLC

"The first part in building a Lo-Fi afication Eurorack Module. I cut out the face-plate, and build out a wow and flutter circuit based around a PT2399 chip."

HT8950 "robot voice" Eurorack Module Build

Published on Oct 20, 2019 Reckless Experimentation Audio LLC

"I take a Holtek HT8950 voice modulation chip and turn it into a Eurorack module. I found the best spot in your signal path for this module is between the VCO and the VCA, acting as an 'overdrive' effect."

Drum Button Eurorack Kit Assembly

Published on Aug 31, 2019 Reckless Experimentation Audio LLC

"Today we are going to build a Drum Button sequencer, if you are unfamiliar with what is does see the link here [posted here]

kit available here"

Drum Button, Eurorack Percussion Sequencer Demo

Published on Jul 22, 2019 Reckless Experimentation Audio LLC

"Introducing the the Drum Button Eurorack module by Reckless Experimentation Audio. It is an eight channel sequencer for triggering percussion sound modules, and to provide a clock source for other synth voices. Includes tempo control, fill and hold functions, and eight independent sequence banks."

via Reckless Experimentation Audio

"The Drum Button is an eight channel sequencer for triggering percussion sound modules, and to provide a clock source for other synth voices.

Pressing the arcade style button triggers an output on the selected channel, and adds that trigger to the sequence for that channel. With 16 lights you might think the sequence is only 16 steps long, it is actually 256 steps, so if you think of each light as a hole note, the sequence is actually quantized to the 16th note

The currently active channel is selected with the left Potentiometer, when the Potentiometer is turned, the lights will momentary change form displaying the position in the sequence to displaying the current channel.

Tempo is control by the middle Potentiometer, this Potentiometer along with the speed input, control how fast the sequence plays. By rotating this Potentiometer all the way counter clockwise, the sequence can be halted.

The Potentiometer on the right is the bank selection Potentiometer. The banks is displayed on the lights similar to the channel selection, with the lights temporally displaying the currently selected bank, before going back to displaying the sequence position.

Banks are independent sequences for all eight channels, on power up, banks 1 though 4 are empty, banks 5 though 8 have preset sequences to get started with. These preset sequences can be added to or cleared just like the empty banks.

Which brings us to the clear button, this button clears all triggers on the currently selected channel on the currently selected bank. By pressing and holding the clear button and pressing the fill button, all the triggers on the currently selected bank are erased.

The hold button stops the sequence form advancing as long is it is depressed. The clock output from the Tempo Out connection continues during a hold. Tempo Out produces 64 pulses per sequence cycle.

The fill button overrides the sequence on the currently selected channel, and outputs a trigger on that channel every quarter note. The fill isn’t added to the sequence, and the sequence resumes normally once the button is released."

Midi Moding a Rhythm Master Drum Machine form 1977

Published on Jun 27, 2019 Reckless Experimentation Audio LLC

"In this Video I add MIDI control to a Wippany [Whippany] Rhythm Master drum machine. First I open the machine up, make it electrically safe to use. Then add a MIDI receiver board to bring this machine into the 21st century"

Moding a Eurorack Subharmonic Generator into a Sequencer

Published on Dec 16, 2018 Reckless Experimentation Audio LLC

"In this video I modify a subharmonic generator into a sequencer"

YM3812 V3 Eurorack Front Panel Explanation and Demo

Published on Nov 12, 2018 Reckless Experimentation Audio LLC

"In this video we go though the major functions and layout of the YM3812 V3. Explaining how the patch points interact with the knobs and switches"

Electro Smith 2144 LPF Eurorack Module Build

Published on Aug 19, 2018 Reckless Experimentation Audio LLC

"Today lets look at the 2144 Low Pass Filter board by Electro Smith

Video begins with a demo of the sound the module makes. Then talks about how the module is put together."

Electro Smith FV-1 DSP Eurorack Module Build

Published on Aug 5, 2018 Reckless Experimentation Audio LLC

"I take a Electro Smith FV-1 DSP and build a eurorack module around it."

Eurorack Arcade Button Keyboard

Published on Jul 6, 2018 Reckless Experimentation Audio LLC

"I was like hey, use some arcade buttons and joystick and put tog ether a keyboard interface, simple right?"

Drone Your Own on a Drone Squad, Eurorack

Published on Jun 16, 2018 Reckless Experimentation Audio LLC

"Using a Drone Squad as the only auditory range oscillator, and a lot of resonant low pass filters. I made this ambient drone track."

https://www.matrixsynth.com/search?q=Drone+Squad

Cover: Wintergatan - Marble Machine. Using two MIDI YM3812 modules

Published on May 19, 2018 Reckless Experimentation Audio LLC

"This video shows by using two YM3812 MIDI modules all the parts of the marble machine song can be replicated. The first YM3812 does the vibraphone, the second does a synth bass and the percussion sounds. Both sound sources are drawn on an oscilloscope to give you something to look at."

Wintergatan - Marble Machine (music instrument using 2000 marbles)

Published on Mar 1, 2016 Reckless Experimentation Audio LLC

"Get the audio track 'Marble Machine' by Wintergatan:
https://wintergatan.bandcamp.com/trac...

Marble Machine built and composed by Martin Molin
Video filmed and edited by Hannes Knutsson

Costume designed by Angelique Nagtegaal"

Eurorack VCO Solder Card from Breadboard

Published on May 5, 2018 Reckless Experimentation Audio LLC

"Video of breadboarding the quick and dirty VCO [here]

https://recklessexperimentationaudio.com

A video about how to turn a breadboard into a solder card. If you haven't watched the breadboarding video first, do so, it will cover how the circuit works, and how you can put it together yourself."

YM3812 Stand Alone Frimware Update

Published on Apr 16, 2018 Reckless Experimentation Audio LLC

"So here we have the YM3812 stand alone MIDI module

For those unfamiliar this module is similar in function to the Yamaha PSS-570 keyboard it lets you control all the sound making

parameters individually. With 22 saves available for sound profiles.

I have added a few new features to the firmware, so its time for an update video. First new feature, pitch bend wheel. Second new feature, sustain function, works with the pedal input on your keyboard. Third, saved configurations can be loaded with a Control change command. finally, velocity control, which can be enabled and disabled on the unit, or with control change sixty nine.This allows for playing notes soft or loud."

https://www.matrixsynth.com/search?q=YM3812

Drawing more circles on the oscilloscope

Published on Mar 27, 2018 Reckless Experimentation Audio LLC

"https://recklessexperimentationaudio.com

Some more oscilloscope art, patch explained at start of video.

Sequencer controls a VCO, and a envelope generator, which is mixed using a VCA with a quadrature LFO. This is passed though a oscilloscope interface module to the scope"