KARP 2600 BARP 2500 short Jam

video upload by O.Z. Hall

"I'm using the Korg ARP 2600 synth for the lead voice (and bass). The Behringer ARP 2500 modules are handling the sequencing and the sequenced voice. Drums are from the Mutable Instruments Peaks module driven by the Euclidean Circles module from VPME.de"

BARP 2500 Basic Patch Points

video upload by O.Z. Hall

"This video reviews the basic patch points for a two oscillator subtractive synthesis patch using my Behringer ARP 2500 system. It includes a few short jams playing lead on the Korg ARP 2600.

TIMECODE

0:00 - Intro
0:37 - 1027 Sequencer Patching
2:03 - Subtractive Voice Patching
4:00 - Detailed look at selected controls
4:33 - 1004 Oscillator switches
6:00 - 1006 FiltAmp inputs and controls
6:47 - 1033 Dual Envelope - delay time for 'echo' envelope
7:55 - Putting it all together - Sequenced Voice w/echo
8:21 - Voltage Control of Clock Gate width
8:55 - Conclusion/closing jam"

ARP 2600 vs NLC 1088 Mogue Mixer/VCA

O.Z. Hall

"The is a review of the NonLinear Circuits 1088 Mogue Mixer/VCA. We compare the 1088 to the 2600s VCF mixer and VCA. The 2600 is clean an precise (at unity gain). The 1088 can be clean, but can also distort in a very musical way. Take a listen!

Kit available from Synthcube:
https://synthcube.com/cart/nlc1088-mo..."

ARP 2600 Berlin School Delay and Reverb

video by O.Z. Hall

"First, let me thank Martin Peters for teaching me the dotted eight note delay trick for Berlin School delay. See link below. Martin is one of the worldwide masters of Berlin School today.

The Z506 Swiss Daisy DSP is a module based on the https://www.electro-smith.com/ Daisy board, with a microprocessor and high fidelity audio I/O. The Z506 is available in MU/Dotcom format from https://www.noisebug.net/. It is available in both Eurorack and MU formats."

Modular Jam 2022 Nov 12

video upload by O.Z. Hall

"I'm using the Korg ARP 2600 for the main sequence and clock. I have a secondary sequence on the 5U format Modular.

The lead voice is also on the modular. A few specific modules that I'm using:
Electro-Smith CEM3340 VCO
Electro-Smith SSM-2044 OTA filter (Prophet 5, Rev 3).
a Serge Resonant Equalizer
a wave folder
The looping envelope on the Z506 Swiss Daisy DSP, modulating"

Emulating Reverb and Delay using an Analog Modular Synthesizer

Published on Dec 26, 2015 O.Z. Hall

"This is a short vlog on emulating reverb and digital delay effects using an analog modular synthesizer. the synthesizer used is mostly a DOTCOM synth in a Portable 22 cabinet. it is designed to emulate the capabilities of the ARP 2600 synthesizer in two respects: 1) the functionality of the modules 2) a 'normalized signal path', to minimize the patching required."

ARP 2600 - Quantized Sample & Hold

video by O.Z. Hall

"This is a short sample and hold demo using a quantizer. It is NOT random sample and hold. VCO1 is in low frequency mode. The sawtooth output is the input to the sample and hold. The result is a series of semitone patterns that are varied and interesting."

FM Journey

O.Z. Hall

"Original music played on ARP 2600, Dual Teezer VCO, Prophet X, MiniMoog (cameo) and on reverb: Zebra Synth Z506 Swiss Daisy DSP!"

ARP 2600 Shepard Tone

video by O.Z. Hall

"This is an approximation of an 'ever rising' Shepard Tone. The Sheppard Tone is an audio illusion creating the impression of a tone the rises forever. A similar video illusion is the barber pole, where the stripes appear to continually rise upward.
This patch is not a legit Sheppard Tone, but it is similar.
I hope you enjoy it."

ARP 2600 Ring Modulator Demo

video upload by O.Z. Hall

"This demo just scratches the surface of what you can do with a "Ring Modulator" (aka Balanced Modulator, aka 4 Quadrant multiplier).

Here is some technical detail ...
The term quadrant used below refers to cartesian coordinates ( e.g. x/y graph with 4 quadrants ).

Regarding two quadrant multipliers (e.g. VCA) versus four quadrant multipliers (e.g. Ring Modulator).
Here's a short definition;
A two quadrant multiplier will multiply two signals together
one (bipolar) input (the carrier) (e.g. VCA signal input - audio or a DC voltage - e.g. +/-5v )
another (unipolar ) input (the modulator) (e.g. a level control input, e.g. an envelope 0-5v ) .
A 4 quadrant multiplier will multiply two signals, both of which are bipolar.

The both multipliers create "sidebands", whose frequencies are the sum and difference of the two inputs. E.G. 100 Hz (carrier) and 25 Hz (modulator). The sideband frequencies are the sum (100+25 = 125 Hz) and the difference (100 - 25 = 75 Hz) .

A 2 quadrant multiplier is an unbalanced modulator while 4 quadrant multiplier is "balanced". This means that.
The VCA (unbalanced) would output the carrier and the sideband frequencies (100 Hz, 125 Hz, 75 Hz).
A ring modulator (balanced) outputs only the sideband frequencies (the carrier is suppressed)."