The ArpoLoop

the arpoloop

The ArpoLoop

ArpoLoop it’s the newest creation of L.E.P. electronic laboratories.
After five years of development, the volcanic mind of our analog
engineer Peppo Lasagna, created this unique instrument, virtually
inspired by the Raymond Scott pioneer work.
ArpoLoop it’s a generative analog composer, an analog computer for
musician, full-featured for creating fresh live music, letting you combine
melodies and rhythm, thanks to the help of his Analog Intelligent
Algorithm.
ArpoLoop is a full Analog synthesizer in 60HP, 7U format, with a built-in
full analog rhythm and melody composer.
With full Analog terminology, we mean we don’t use any digital
component, like microprocessor or even CMOS counter IC like CD4040
etc. this guarantees you a living organic sound, always drifting to a new
direction.
Since there is not microprocessor nor memory, it can not be
programmed in the usual way, instead it can be set and guided to play a
line whose parameters are user definable and virtually infinite.
With these features, ArpoLoop offers you a unique musical experience,
where instead of programming your sequencer you are forced to play
with him.
Each time you switch on your ArpoLoop he will respond to your state of
mind, letting you compose the music of that moment, this is particularly
notable when in our time the music was the first product of human
creativity to digitally disappear, thus making the recorded music lose
importance.
Like a pianist practices with his piano, you will practice with your
ArpoLoop offering an always better improvised musical live
performance.

ArpoLoop consist of different part and modules :

  • The Voice Board.
  • The Ramp Generator.
  • The Capacitor Sequencer.
  • The Note Generator.
  • The Rhythm Generator.
  • The Octave Keyboard.

Here is a list of its features:

-4 voltage controlled oscillators (VCO)

 -VCO1 sine wave with sync and FM 

-VCO2 sine wave with FM

-VCO3 sine wave with sync and FM

-VCO4 sine-square-sawtooth with LFO option

 -4 cascadable voltage controlled amplifiers (VCA) controlled by envelope or ring modulated by a VCO

 -3 Attack-Release envelope generators (ENV) with 3 modes of operation (GATE REPEAT TRIG)

 -Clock generator and 3 Ramp generators for general timing

 -4 Rhythm generator to control notes and drums

 -Note generator with 2 sample\hold CV outputs

 -Bass drum (CASSA) with pitch, resonance, distortion and trig-mix controls

 -Snare drum with tom pitch, decay and trig-mix controls

 -6 channel Audio Mixer with level and pan switch control

More ArpoLoop Demo Videos

Pre production prototype of leploop

Leploop pre production box and panel, handmade wooden box and laser print alluminium panel.
http://www.flickr.com/photos/tonylight/3934564300/

LepLoop: synth prototype

LepLoop It’s a small synth protype I’m developping with my friend Peppo.
The idea was to have a compact live analog instrument.
The circuit it’s an original design.
The synth can produce 3/4 sound at the same time: kick, noise hh/snare,
bass/melody.

Synth scructure

  • osc1 wave squ. and tri.
  • osc2 wave saw.
  • osc1 can modulate osc2
  • 2 AD envelope
  • 2 vca
  • 1 lpf diode ladder filter with cutoff and res. cv control
  • kick drum generator + distortion/overdrive
  • noise generator
  • 1 lfo
  • 1 s/h
  • 1 mixer
  • 4 gate sequencer kick / S&H / env1 / env2
  • 1 16 step capacitor sequencer, the S/H sample the lfo for imput the note in the seq.
  • Different menu for clock div., step, groove, record, save and recall track.
  • midi in
  • cv in\out