ARP 2600 vs Synovatron CV tools eurorack module

YouTube Uploaded by DJjondent on Apr 8, 2012

"This is a comparison between the CV tools Eurorack module by Synovatron
and the Voltage processor of the old ARP 2600 synth.

The ARP 2600 voltage processors are often forgotten & neglected.
while Not as sexy as its VCOs or filters they are still very important.
I really like the The CV tools Eurorack module as it emulates all of these functions
and is so easy to operate.

The ARPs 2600 voltage processors are located between the noise generator and the S/H module.
There are 7 inputs in total.
This module contains three separate types of processor:

1. lag processors.
2. mixing processors
3.inverting processors.
-----------------------------------------------------

Lets start by comparing the 1st (top) voltage processor on the ARP 2600
with the CV tools module.

The 1st ARP voltage processor mixes and inverts.
It has 4 inputs, 2 sliders and 1 output. The inputs are labled 1,2,3,4.
Inputs 2 & 4 can be attenuated with sliders. Inputs 1 & 3 have no attenuation.
Before the final output, all the signals are inverted.
(The inverter is a circuit that flips a waveform upside down).

The inverter is a great way to make a keyboard's pitch get lower as higher notes are played.
Try controlling one VCO with normal voltage and the second with
inverted voltage. We could also use inverted signals to close rather than open a filter or to decrease rather than increase
volume on a VCA. Ofcourse LFOs and even audio signals can be flipped upside down for real crazyness.:-)

The two attenuators allow you to offset control voltages.
Very useful when trying to FM a VCO or in adjusting the Fc on the VCF.

The ARP's processor will mix audio & control signals equally well.
I often use this module to mix control signals in preference to the main mixer
as it doesn't feed the ARP's main outputs.

On the CV tools module we also have 4 inputs.
However we have 4 attenuators (in comparison to the ARP's 2 sliders)
and all inputs can be summed and inverted.
It mixes audio and control signals equally well.

V Cool!!!!

In this video I'm comparing the Arp's mixing and inverting processors with the Cv tools module.
(I'll compare the lag function in a later video).

I'm using the ARP's 2 VCOs
First with its own voltage processors , then with the CV tools module (about 2.17 mins into video).
You be the judge.

Sorry for the shaky camera. Its tricky plugging cables in and out while filming.
For More info see Synovatron's website:
http://synovatron.blogspot.com.au/p/cv-tools-project.html
Thanks to Matt from RhythmActive.
http://www.rhythmactive.com.au/"