Modifica is a densely featured Low Frequency Oscillator with a clock sync and tap-tempo inputs, rate-multipliers and tons of shaping options.
16 waveforms CV selectable via two banks of eight. Just press the top left button to change banks. Scan though the different waveforms via external voltage control, or manually change your shapes with the waveform knob
CV controllable Wave shaping/distort/PWM/ slew depending on waveshape selected
Selectable bipolar/ unipolar button
Smooth button - applies gentle filtering to the output to very-subtly round out edges. Turn smooth off for added clicky punch on angular edges"
"As VAEMI, we designed the Euro DI in the Eurorack module format, which can be used for all digital or analog equipment, synthesizers, and drum machines ranging from line level devices to high voltage synthesizer levels. In this way, you can input the unbalanced sound signals of your equipment into your microphone preamp with a balanced XLR connector.
Key features include:
- Balanced XLR Output
- Neutrik XLR connectors
- Enables the transmission of audio signals over long distances
- Clean and transparent sound
- 0 degree phase shift
- Accurate isolation from electrical noise in the audio signal
- -12dB Pad switch
- 180 degree phase switch
- GND Lift switch"
"Demo of the M-111 VCO/VCF, Roland prototype module of the system 100M serie."
One demo for the M-111 and four for the M-142 below. Unfortunately I was unable to create a playlist for them so you will have to scroll. You'll find details and pics of the modules including a link to their user manuals below.
NSFW WARNING: READ BEFORE YOU PLAY THE VIDEO: if you offended by penises, skip :20 through :26. If you are not, I won't spoil it for you. Almost didn't post the video for obvious reasons, but it is a bit of synth history... FYI, it's not a real penis. That would not get a post.
Check with the dealers on the right for availability.
"DitDit is a user configurable morse code gate sequencer. Plug a PS/2 compatible USB keyboard in, type whatever you want, clock it, and get morse code gates out. In addition to outputting the full morse code pattern, there are seperate outputs for dots and dashes labeled "dit" and "dah." There are 8 memory slots to save text buffers to with the ability to recall the buffers on the fly. Additional user configurable settings that adjust the playback behavior of DitDit can be controlled with the F keys on your keyboard and saved. All saved settings and text buffers remain after power cycle. DitDit was designed to explore complex polyrhythms using morse code.
Sure hope you like it otherwise it's . . . _ _ _ . . . for Moffenzeef :D."
It's a full synth voice (means: don't need anything else) With 2 VCO that can works as VCF too. for each VCO/VCF: - A Wave Folder - A bipolar VCA (almost like a dirty ring modulator) The 2 VCA can works Left-Right or Mid-Side (!) mode.
And to have a full synth voice, tere is one LFO and one AD envelope. And a lot of inputs and outputs to cook noodles ;)
The module was presented at SynthFest and SuperBooth, and should be available on september/october.
Today I am introducing GODSPEar, my homage to the Oxford OSCar filter in Eurorack format. GODSPEar is the only filter used in these audio recordings. Detailed explanation of the module and patch examples will be in a forthcoming Demo #2. Audio recorded direct to Tascam DR-05, some additional compression and normalization used in the making of this audio.
"As Oscar translates from Celtic to God’s Spear, now GODSPEar is my translation Oxford OSCar Synthesizer filter for the Eurorack format. GODSPEar has a special look and sound that pays special homage to OSCar designer Chris Huggett’s creation. The Oxford OSCar would inherit some of the funky DNA from EDP WASP as it was discontinued at the time. Hailed as Europe’s answer to the Minimoog, sets itself apart from Bob’s hardware with some curious technical wizardry all its own.
The OSCar, and now with my GODSPEar filter were already interesting to start. It is actually TWO FILTERS each w/ 2-Pole cutoff slope. The cutoff frequencies of the two filters can diverge from each other by an adjustable SEPARATION control. The “Q” resonance control behaves as one would expect when no SEPARATION is used. But in BANDPASS mode, with higher Q settings as well as SEPARATION impart vocal formant sounds.
Divorced of any CPU control prowess as it was implemented on the original. GODSPEar filter control has been designed from the ground up to work well w/ the Euro standard. And to meet the stringent requirements that discerning modular synth enthusiasts have come to expect. Yet retains the original core topology, a full analog signal path, NOS NJM13600 OTAs, as well as V/Oct filter tracking. Logic assisted Filter MODE selection button toggle. Two external CV inputs for control of Frequency. And now the additional features of CV control over Q, and yes CV control of Separation.
Beware - CV control over Separation is serious business.These signals were only meant to diverge in one direction. Sending the cutoff frequencies in the other directions yield vanishing Bandpass audio and unintended consequences for Low/HighPass modes. Thus on GODSPEar, I’ve added an active Full Wave Rectifier circuit to govern the Separation CV input as gate-keeper and peace maker. Go ahead and send your bi-polar LFO signals etc. Just know in doing so, any negative voltage components will be flipped over to the positive realm. You’re welcome.
FREQUENCY | the initial Cutoff Frequency of the filter
Q | the depth of the peak frequency resonant feedback.Res will self-oscillate without an input signal present.
Q CV | Modulate the Q Resonance w/ any polar/bi-polar mod signal. This signal is summed against the Initial Q amount knob.
IN 1 & IN 2 | Mix together 2 different audio signals, each w/ their own mix pot.
Freq CV | Modulate the Cutoff Frequency w/ any polar/bi-polar signal. At 12 o’clock, the pot has no modulation. In the Counter-Clockwise direction it can invert the incoming control signal.
KB | Modulate the Cutoff Frequency w/ a V/oct signal or any other polar/bi-polar mod. Self-oscillation resonance will loosely track v/oct when KB is set to 100%, allowing the self-oscillation Q sinewave to be played in a musical fashion.
TYPE | Toggle switch for choosing the filter MODE: Lowpass, Bandpass, Highpass.
SEPARATION | Initial amount that diverges the frequency cutoff spread between the two filters.
SEP CV | Control Voltage Input with attenuator knob for modulating the Initial Separation amount. Input CV Signal is passed through a Full Wave Rectifier so that Separation behaves in a prescribed manner as expected, thereby preserving audio integrity.
OUT | the mono audio output jack.
Spearhead your own analog filter trajectory by racking up something a bit outside the usual fare. GODSPEar is made in limited quantities, not mass produced – so don’t wait and get yours whenever available. Includes a 10-pin to 16-pin Eurorack ribbon connector. Rack screws are not included as it’s presumptuous that one fastener spec suits everybody. Fasteners are possibly available upon request if you let me know your specs I’ll see what I can do. I highly recommend After Later Audio Rack Screws sold separately here on Reverb."
"Stomp is the missing link between the worlds of modular & effects pedals
In this video, we take a look at the features & functions of Intellijel Stomp - a module that lets you inject some external effects direct into your eurorack modular system. It's not just a simple level shifter - it also converts impedance for optimum output to your pedals and vice versa. This also means you can plug your instrument into the Return jack socket for some weird and wonderful results."
Chapters: 00:00 - Introduction 00:21 - How to setup 01:59 - The Phase Switch 02:23 - Expression Control pt. 1 - Built-in LFO 03:12 - Expression Control pt. 2 - CV & Unipolar Compression 04:15 - Stomp as a guitar interface 04:41 - Summary + Guitar & Sealegs Outro
"The sound examples are not meant to be musical compositions, but rather provide a quick overview of the module's capabilities.
Further information on this module can be found at www.st-modular.de.
00:00 Intro
00:26 Features
01:45 Open & Close
03:18 Internal LFO
04:20 External CV & Internal LFO
04:45 Only External CV
04:59 Organic Movements"
HANS is a compact 4-pole low-pass stereo diode-ladder filter with an internal LFO. Inspired by the famous diode ladder filters found in EMS and Roland TB-303 devices, this filter delivers a distinct and unique sonic character. The module also features an internal LFO for dynamic movement of the cutoff frequency.
key features Diode-Ladder Filter 4-Pole Low-Pass Design Stereo Inputs and Outputs Cutoff CV Control with Attenuator Internal Triangle LFO with Level Control LFO Output Only 6 HP wide Skiff friendly Wrong polarity protection specs & downloads width: 6 HP depth: 30 mm power: 35 mA @ +12V / 29 mA @ -12V
"Today I'll show you some stuff with the new module by Schlappi Engineering, the BTMIX!
Lot's of fun stuff do with this one when it comes to control or loose control of your rhythms and create weird stepped voltages patterns. From gate hub to audio rate mangling."
"BTMX (BitMix) gives hands on control over logic and rhythmic gate signals with a switch for every input and 4 different logic functions.
It is a 4 channel selectable logic function module, with each channel having two inputs. All channels share the same logic function and the gate outs are summed with binary weights to create a stepped voltage to generate melodic or modulation signals from the outputs.
It pairs well with the Nibbler, other 4 bit logic modules, or any modules that generates gates (such as clock dividers and sequencers) and can also be used at audio rates.
Features
8 switched inputs 4 dual input logic functions (AND, OR, ADD, XOR) 4 gate outputs 1 stepped output LED indication for every input and output Works at LFO and audio rate 8 HP Current consumption: +12v 26mA, -12V 10mA"
"Short demo of a digital Saw waveform through my Angelo Dual VCF design.
Shows first what a single filter sounds like, then the Mix output, then the B-A output, then both A and B outputs panned hard left and right respectively."
This module is an eight step CV sequencer with it’s 4 different outputs which change the outputted step at different rates with each output changing at half the speed of the previous output.
Compatible with 12V or 15V systems, panel components are PCB mounted, but pinouts for interboard connectors are labeled in schematic for building in other formats. Only has power footprint for Eurorack.
This is a CV processing module that analyzes voltages mathematically. It has outputs for highest, lowest, sum, difference, absolute difference and negative sum
Compatible with 12V or 15V systems, jacks are PCB mounted.
"Audio path : Dpvco into mixer and then into Diode Dream Vcf .
The oscillator wave at first it’s saw and later in video becomes square. The sequence is in 303 acid style using a lot of RF modules like VCAs - mixers and vc envelopes for making the 303 accent function. A modified RD6 is used as drum machine."
"5 Pole diode ladder filter with multistage variable out of low pass and band pass
Diode Dream VCF is a 5 Pole diode ladder filter but instead of diodes, the circuit in the filter core section, uses transistors in diode configuration.
The filter has a switch selecting between 5 or 4 STAGES of filtering.
You can access the low pass output via the LP out jack.
There is also a VARIABLE out with a dedicated knob. That knob is a mixer of the different pole outputs that are opposite in phase and in the middle, it gives a band pass [BP] out. When in BP the gain is lower in volume which is completely normal.
VARIABLE mixing knob can be altered from less poles to more poles, more specific, VARIABLE out sends 1 or 2 stages at left side and 4 or 5 stages in the right side. That depends from the position switch of STAGES, so if the switch is in 4 position the VARIABLE out sends 1 (full CCW) and 4 (full CW) stages. If the switch is in 5 position, the VARIABLE out sends 2 (full CCW) and 5 (full CW) stages.
This arrangement also affects the Band Pass slope.
The CV-FM input has a dedicated pot for cv amount that is normaled to the audio input of the filter.
This allows for instant fm tones as the audio input becomes a modulator for the filter frequency.
If there is a jack inserted this connection is broken and you can use this knob as cv amount of an envelope or lfo.
There is one audio INPUT with amount pot and a 2nd CV input jack [CV2].
This CV input can be used as volt per octave input control. When the filter is in full resonance the module can be used as sine wave oscillator with good tuning of 2 octaves.
There is a resonance BOOST switch in order to achieve self oscillation. If the RES knob is fully closed and the BOOST is on, then the filter has still some feedback that would be very useful to emphasise the highs and lessen the low frequencies. When BOOST is off and the RES knob is fully closed and the INPUT level fully open the sound will be a bit oversaturated, so you can try turning down the INPUT level knob at 2-3 o’clock .
The filter has discrete through hole components with low noise transistors that are hand selected one by one with very high hfe values and are also matched in pairs for the buffer differential amplifiers and the input output stages of the ladder. An IC opamp is used for resonance gain compensation.
In the original design when the resonance is turned up the gain of the filter decreases drastically. The filter now has resonance gain compensation and while it still loses some gain when in resonance, the gain difference, is now is acceptable and the sound of the filter is pure and warm without losing the character. The resonance compensation is achieved by increasing the input gain while the resonance opens, so this gives a special character.
Because of the filter design the input signal does not clip instantly but instead it saturates the sound musically and the more you push it the richer the output in harmonics and natural and musical compression.
When the resonance is in self oscillation and the audio input is pushed, the sound gets glassy and squelchy. This filter gets acidic but it maintains the clarity of the high end, yet sounds warm and very rubbery. Detailed bass, creamy mids and crispy smooth highs.
Many different tones are waiting to be discovered by the user dealing in different combinations of the input gain, the resonance, the frequency FREQ knob and the VARIABLE shape of the filter."
Jacks : Inputs, Outputs, HI CV Inputs, Lo CV inputs
Hand-wired, Boutique quality, Made in Brittany, France (Plougastel-Daoulas, Landerneau).
Not that Stupid Breton name"
"This module contains three individual window comparator circuits. They all work slightly differently from each other and somewhat differently from regular window comparators.
These are particularly useful circuits to create gate/timed events from chaos signals, or any other CV signal. It can also be used for pulse width modulation at audio rates, lots of good sounds to be found.
The rather grandiose names for each comparator came from a paper - Some Special-Purpose Comparator Circuits by H.K Verma. The actual circuits are different but two are inspired by the ones presented in the paper.
1. Special Comparison Instant – this is probably the most normal window comparator of the three. The pots can be used to set the high and low voltages between which the output gate will be high. You can also patch in CV signals to alter the high and low settings.
2. Comp for Concurrent Magnitudes – this will output a gate when the signal on Input 1 is compared against the setting of the SET/In2 pot. If no signal is on In 2 then the pot sets a fixed voltage, otherwise the signal on In 1 is compared with the amplitude of the signal on In 2, which can be attenuated by the pot as desired.
The extra feature of this circuit is the Level pot can set the gate level (up to 10V!) or you can patch a signal into the LEVEL input and create envelopes or bursts rather than gates.
3. Comp for Restricted Openings – this one has a pot (WIDTH) or CV control to set and change the gate width. In1 and In2 are summed together and compared with the level chosen with the SET pot.
Building is fairly simple, just be mindful to bend the LEDs slightly upwards to shine thru the windows from the bottom. It is good to use super-bright LEDs in this module as they have to shine thru the PCB panel."
