Monday, October 16, 2006

The OLD Cloud generator MOTM-520 design

The prototype design of the Cloud generator description is below, this was an 8 oscillator module, however the current module in development has twice that, 16 oscillators!

Yet to give somewhat of an idea what a cloud generator is read the below OLD description.

The MOTM-520 is an entirely new concept in VCO design. First, the module is NOT any sort of 'granular synthesis' device. This confusion is due to our use of the term 'Cloud'. But we really couldn't think of a more descriptive term, so this is what we call it.
The MOTM-520 contains 8 independent digital oscillators, each with Sine and Pulse outputs. The Sine outputs are very low distortion, less than 0.1% THD. The Square/Pulse waves can be PWM'd by an external control voltage or even audio. The sum of all 8 oscillators is routed to the SINE OUT and the SQR OUT jacks.
What makes the MOTM-520 generate what we call a 'Cloud' is by spreading apart the frequencies of 7 of the 8 oscillators (1 is the 'reference' pitch). This detuning can be manually adjusted using the SPREAD control, or with an external source (such as a LFO or EG). The WIDE/NARROW switch sets the overall frequency spread (NARROW = 1 semitone, WIDE = 1 octave). The module behaves just like any other 1V/Oct VCO, with standard COARSE, FINE and FM controls and inputs. The difference is that in a 2U space, you have 8 oscillators with no drift or calibration issues. Using SPREAD and SPREAD MODULATION, you can still get huge monophonic leads and interesting wooden percussive sounds. Each oscillator will spread up or down in different sensitivities, and in different directions. All of this creates the most massive bass and lead lines, all in a single VCO
module. But we were not content to stop there. You can ALSO independently modulate the relative phase of each oscillator to the reference. And then we went overboard and added one more 'modulation': CHAOS. The MOTM-520 uses the new MOTM-950 Power Supply, which supplies +5VDC as well as +-15VDC (uses a 6-pin MTA-156 connector)

Here is a sample of what the aboved would sound like.
This particular sample is NOT made with a 520, but it's a MOTM system *patched* as a '520. That is ~63 modules :)

LISTEN to the other samples on my previous post of the NEW design version, this is going to be a great new module! And yes, those are the real deal, no simulation!


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