AndreasKrebsBlog

This is an improvisation on a rather complex patch. (This patch ate up around 80 cables…) I use six VCOs here, together with 7 VCFs, a tapped BBD, both Wave multipliers A-137-1 & 2, A-126 Frequency Shifter, etc. The result of this cable mess is some acoustic mess (what else), but quite some fun with all its happy-go-lucky-sequences.

We start with some percussion from EZdrummer in Ableton Live. There’s simple midi sequence through Live’s arpeggiators that controls some of the A-100 voices. The most “fat” one consists of three A-110 VCO through two A-108 Ladder Filters. The filter outputss (used in 6dB and in 24dB mode here) are mixed with inverse polarisations (A-138c), so we have a nice 6dB/24dB highpass as well. Filters and VCA are controlled by an A-140, there is also a slow triangle LFO on the filters.

Then thre’s a high sequence which consists of a single A-110 VCO: sawtooth into an A-137-II Wave Multiplier and then into two A-106-1 Xtreme filters (serial connection - highpass first, then lowpass). The Wave Multiplier is controlled by an A-143-3 Quad LFO (four triangle waves). The Square output of this A-110 goes into an A-136 VC Frequency Divider which is controlled by a sawtooth LFO (creating a glissando of minor chord “undertones”) - the glissando is fed into one of the A-106-1s as well. After this, everything is put into an A-188-2 Tapped BBD. Another A-140 controlls VCA and filters, and in some places I use an A-143-1 Complex Envelope (all four ADs in LFO mode) to modulate the BBD frequency.

We also have an A-111 for a slightly more “atonal” high sequence: it is synced and frequency modulated by another A-110, fed into an A-137-I Wave multiplier and then into an A-126 VC Frequency Shifter. The Frequency Shifter is controlled by an A-155 Sequencer. The result (original A-137-I output and A-126 output into an A-138 mixer) is put into an A-106-5 SEM Filter. Envelope is another A-140.

Finally, I use some background electronic percussion: coloured noise put into an A-127 Triple Resonance Filter and (with some parallel A-117 noise) an A-124 Wasp Filter. VCA and filter envelopes are controlled by a final A-140.

Triggers and gate signals have been treated in various ways with A-162 Trigger Delay, A-160 Clock Divider, A-161 Clock Sequencer, A-165 Trigger Modifier and A-186-1 Trigger Combiner.

Here we go:

http://www.andreaskrebs.de/assets/media/improvisation-20100524a.mp3

As usual, everything has been improvised (apart from basic patch creation) and no overdubs have been made.

Track length is 14:29.

Have fun,

Andreas

The A-101-1 is a Multitype input filter, i.e. we have separate LP, BP and HP inputs and a common output. The inputs are normalised so we can use the LP input and three potentiometers to mix the type of filter we want. More details can be found at Doepfer’s homepage:

 http://www.doepfer.de/a1011.htm

We use three mixed A-110 VCOs as input, controlled by an A-155 Sequencer. The filter is controlled by the VCO CV from the sequencer, an A-140 ADSR and a LFO (very slow triangle wave). There are two outputs on the A-101-1, the second one decreases volume when filter emphasis (resonance) gehts higher. That’s the one I use here. I start with only LP input, blend over to BP and then HP. Resonance is increased manually and we can hear the rather sudden and quite intense resonance of this filter - this is quite useful for special effects, bassdrums, etc. Later on, I increase the LFO frequency up to audio (around 4-5 kHz): since the filter uses vactrols, it will not follow too high modulation frequencies (no audio filter fm).

Here we go:

http://www.andreaskrebs.de/assets/media/A-101-1.mp3

Quite an interesting filter! Very creamy and bold sound characteristics, but resonance will come quite screaming and suddenly. The three inputs can be used by different audio sources and may offer very special sound capabilities not found elsewhere.

Andreas

Emotion was created 01/2009-02/2009.

Emotion

Instruments used:

Native Instruments Absynth, 4Front TruePianos, Arturia Moog Modular V, Native Instruments Kontakte 3, Korg Legacy MS-20, Toontrack EZdrummer, Steinberg Cubase 4.5.

Andreas

BlueSequence was  created 08/2008-11/2008.

BlueSequence

Instruments used:

Native Instruments FM8, Korg Polysix, GForce Minimonsta, Korg Monopoly, Korg MS20, Korg Wavestation, Arturia CS-80V, Toontrack Ezdrummer, Native Instruments Kontakt, Korg M1, Native Instruments B4, GForce M-Tron, Native Instruments Absynth, Native Instruments Reaktor, Steinberg Cubase 4.5.
Andreas