Mark VerboxMark Verbos of Verbos Electronics premiered two new Eurorack modules to a full house at Perfect Circuit Audio in Burbank, California tonight. Here’s a very quick summary of their features; more details will certainly be released at the NAMM show this weekend:

Sequence Selector

You can think of this as a sequencer for your sequencer. It contains five stages of voltages and gates. A common connection would be to have your normal sequencer send an “end of sequence” trigger to the Sequence Selector, which will then move it forward one step. This new step could be used to transpose the main sequence (it has a precision voltage adder built in), switch between banks of your main sequencer (or two separate sequencers or rows), etc. These master steps can also be selected manually or by control voltage. This should be useful for those looking to program longer patterns and other complex evolving effects.

Random Sampling

This module has several different sections all behind one panel, including a nod to the old Buchla Source of Uncertainty, digital noise generation, and sample and. A few of its features include:

  • A random modulation source that is voltage controlled. Under the hood, a stream of fluctuating random voltages go into a sample and hold; the speed of evolution of that stream of random voltages can be sped up or slowed down under voltage control. Eventually this will be able to be clocked in the audio range to create arcade-style noise bursts.
  • A random pulse which can be injected into the random voltage stream, simulating a gieger counter or static for example.
  • A section based on an improved version of the the “stored randoms” from the Buchla 266. Compared to a normal noise-driven sample and hold, here a limited number of random yet discrete states are sampled. The Verbos version is capable of producing much longer sequences of random voltages, making it less predictable than the Buchla 266 if desired.
  • A digital white noise source that’s not lumpy like some early chips, and does not have power supply etc. artifacts like some analog noise sources. This is also analog filtered to produce pink noise.
  • A cluster of detuned oscillators to produce metallic sounds akin to older drum machines.
  • A set of four sample and hold (S/H) modules that can be patched individually, but which are also normalled together as an Analog Shift Register. For those unfamiliar with an ASR, they way it works is that a trigger input tells S/H #1 to sample your voltage input, S/H #2 to sample the voltage previously held by S/H #1, and so forth. Internally, these triggers need to be slightly spread out in time as a flam (so #4 can sample #3 before #3 samples #2, etc.), so if you feed all four S/H modules the same input, their four outputs would be different as they’re actually sampling at different points in time.

My background is more East Coast Moog-style modules than West Coast Buchla-style modules, but the Verbos Random Sampling was so complete and well though out (and compact), I’m considering one for my own system.

Prices are not set for these modules, but the front panels are done, and they’re expected to go into production in about a month.

At the end Mark improvised a techno-based jam that went from drones to melodic to feedback-like noise. A good warm-up for NAMM indeed!