MA35 - Demo 06 (HP Self​-​Osc & FM)

from Manhattan Analog - MA35 by Matttech Modular Demos

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This demo shows off the ways in which the MA35 can be used to create interesting sounds, even with no signal input - and also focuses on the Highpass output. All signals were recorded direct, and the VCA used was the internal MA30 one.

Some people on Muff WIggler had been discussing how the MA35 has a certain amount of noise in its circuit - well, it DOES...but so did the design that it is a clone of - and also you can put this noise to good use: If you FM the filter, with no signal present at the input, it will produce an output that sounds like a oscillator wave - even with the resonance turned down to zero. Presumably this is the small amount of noise in the circuit being FM'd. As you turn up the resonance, you will gradually morph the signal into something more recognizable as a self-oscillating (FM'd) filter.

Bringing in an actual oscillator wave underneath all of this alters the sound again. this filter has bags of character, and I'm liking more each time I play with it.

Patch Details

1. Intellijel Rubicon Sine and Pulse are fed into Input 1 of the MA35, via an attenuator whose level is gradually increased as the recording progresses.
2. The Rubicon's pitch is controlled by the Turing Machine's main output.
3. 00:00 - 00:40 - No audio input. This is merely the sound of the MA35 with zero resonance being FM'd by a Dixie Triangle wave, which is following the same sequence as the Rubicon.
4. 00:40 - 01:30 - Here the resonance of the MA35 is gradually increased, adding some "proper" self-oscillation into the mix
5. 01.30 - The waves from Rubicon are finally brought in underneath the FM/Self-oscillation sounds.
6. The MA35's cutoff is also being modulated via its 1v/oct CV input - by an output from the Turing Machine's Voltages expander, producing a different, although related, sequence from the main module. This goes through Maths, serving as a slew limiter.
7. The second channel of Maths provides the spiky envelopes that control the MA35's VCA level.
8. During the recording various controls are manipulated: MA35 FM amount (CV2); Resonance; the level coming from the Rubicon into the MA35's audio input; the shape of the Maths envelope (from Linear to Exponential); the Fall time of the Maths envelope

credits

from Manhattan Analog - MA35, released May 21, 2015

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