2xVCA Exploration of Audio Rates Amplitude Modulation

Want to spice up your ordinary analog VCOs?
In my previous VCA Tips and Tricks video I showed you how to do audio rate modulation using a VCA. It's basically a tremolo, only the control signal is another audio signal.
The result ends up sounding similar to ring mod or FM.
Today I'll show you exactly how to patch it up. And explore the cornucopia of interesting AM sounds using various input and control signals possible using a VCA.

Check my Reverb store for 2xVCA version 3 availability

0:00 Intro
0:26 Patching It Up
1:26 Exploring Various Source and Modulation Waveforms
5:47 Adding a Filter and Envelope

Sketchy Labs Freak Shift Eurorack Module [Demo #1]

Today I am auditioning the Sketchy Labs Freak Shift module.
The design is specially derived from the Bode Frequency Shifter.
There are literally sweet spots at every turn of the pots on this one.
In this video I'll briefly discuss this module and patch up some wierd sounds.
The focus is on demonstrating a range of evolving sounds of the frequency shifter.
I'll endeavor to make something more musical using the Freak Shift in a future video.
This video is not sponsored or endorsed by the Doc Sketchy.

0:00 Intro and brief discussion of patching
0:54 LFO as Mod input for phaser type sounds
1:24 Using 2 LFOs for Sine/Cosine modulation
2:55 VCO as Mod input for Frequency Shift sounds
4:48 Sum/Diff outputs for Stereo Spread
8:48 LFO modulating the AUX

Audio VCO | Pittsburgh Primary Oscillator
Modulation VCO | Cre8audio Capt'n Big-O
LFO Modulation | XAOC Batumi

Recorded direct to Tascam DR-05.
No additional effects or processing used.

GSE 4023-VCF Demo #2 Lovely Saturation

Darkwave, deep house, tribal and Carpenter-esque sounds ahead.
Of the filters I'm offering, 4023-VCF has the most lovely saturation to me.
In most cases, when the input slider is above 60% the filter input will start to become overdriven.
Resulting in a warm and fuzzy distortion.
Audio recorded direct to Tascam DR-05.
Some use of the Timefactor Delay and Big Sky Reverb.

0:00 Opening
0:14 Talking
1:01 Audio demos w/ talking intros

Kick Drum - Future Retro Transient+
Oscillators - Pittsburgh Synth Box + Rozendall CEM3340
Envelope Contours - 2xADSR dual envelope
Ring Mod - Mutable Warps
LFO - Batumi
MIDI Sequence - Beatstep Pro

RM&S Ring Mod + Sub-Octave Generator now available

My Ring Modulation + Sub-Octave Generator module is now available at Reverb dot com!

RM&S is a 4HP Ring Modulator and Sub-Octave generator. The Ring Modulator is an active, CMOS-based circuit adapted from the ARP Odyssey. Ring Mod is usually generated from inserting square wave VCOs to Input 1 & 2. But that shouldn't stop you from sending sawtooth, wavetables and noise sources through this.

The Sub-Octave Generator circuit is derived from the Roland SH-101 and provides -1 and -2 octaves from a square wave plugged into Input 1. Many VCOs put out varying degrees of signal amplitude, a trim pot is provided to adjust input impedance of VCOs for the Sub-Octave Generator circuit.

Output jacks include: Ring Mod, summed Ring Mod + Sub-1, Sub-1, and Sub-2. The RM&S is hand-crafted in the USA.

Measured Current Draw: 2mA on -12V, 5mA on +12V, 5V not used

Testing A Ring Mod + Sub-Oscillator Circuit

In these quick videos I am testing a DIY Ring Mod + Sub Oscillator circuit through my Tonus VCF (ARP 2600 clone of the 4012 filter). The first video is through a Timefactor Delay. The second video I am punching into freeze mode on the Strymon Big Sky for a colossal wall of sound! The Ring Mod + Sub will become a eurorack module, I will give more info on that soon. Sequenced on Arturia Beatstep Pro. Thanks for watching!

Synthesis Technology E560 Deflector Shield Demo Eurorack Module

Today I demonstrate the Synthesis Technology E560 Deflector Shield module. It is a digital effects module that has Frequency Shifting, Ring Modulation, and Phase Shifting. There's not as much talking in this one. I read the documentation and still don't fully understand everything that is going on. But it sounds absolutely wicked.

I show what effect all controls have on the sound. This demo uses a simple sawtooth from my Pittsburgh Modular Synthesizer Box as the sound input. Each knob has its own dedicated CV input, as demonstrated by passing a triangle LFO also from the Synth Box to each CV input as an example.

There are a tonnage of little sweet spots. Paul Schreiber has done an amazing job on this one. This module stereo outputs were sent to my Mackie mixer and panned hard left/right, and recorded direct to a Tascam DR-05 w/ no other effects or production so the E560 can shine in all its glory.

Contents: 0:22 Frequency Shifter
5:04 Ring Modulation
6:23 Phase Shifter