CRATHES AUDIOPLATE / IXACCOUNT
FIG. IX / SENSOR FIELDCONSTRUCTION / LIVEH 0.120 / V 0.270
COORD / 0.000, 0.000SCAN RETURNS / 0000NO TARGET / STANDBY

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EXPERIMENTAL AUDIO SYSTEMS / PLATE IX
CRATHESAUDIO

TOOLS FOR UNNATURAL SOUND

NONLINEAR DSP / FEEDBACK / INSTABILITY
DESCEND
02 / FIRST RELEASE

OCTAVIUM CORE

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FOCUSED ANALOGUE-STYLE FILTERING AND MOVEMENT

MAKE THE
FILTER MOVE.

A compact effect combining selectable drive, a resonant four-pole low-pass ladder filter, a continuous cutoff LFO and an input envelope follower with detector-only Low Focus.

  • WINDOWS X64 / VST3
  • MACOS UNIVERSAL / VST3 + AU
The complete Octavium Core plug-in interface
FIG. 01 / COMPLETE SIGNAL PATH
SHAPE / PRE-FILTER COLOUR

COLOUR, THEN
FILTER.

Select either drive character, then shape the result with a resonant four-pole low-pass ladder filter. The fixed single-band path stays immediate and predictable.

  • Two selectable drive models
  • Resonant four-pole low-pass ladder filter
  • Direct blend and output control
FIG. 02 / DRIVE + FILTER
SCOPE / DETECTOR INPUT

SEE WHAT
DRIVES IT.

Read the incoming signal against the modulation cycle, then focus the detector on the part of the spectrum that should create movement.

  • Live modulation relationship
  • Selectable detector input bands
  • One-cycle synchronisation view
FIG. 03 / MODULATION SCOPE
MOVE / TWO MODULATION SOURCES

SYNCED OR
SIGNAL-LED.

Run the cutoff LFO in tempo-synchronised or free mode, or let the input envelope shape the filter with adjustable sensitivity, attack and release.

  • Sync or free-running cutoff LFO
  • Adjustable envelope follower
  • Optional detector-only Low Focus
FIG. 04 / LFO + ENVELOPE FOLLOWER
01 / 04
SWIPE / SELECT
03 / FIELD NOTES
CRATHES AUDIO / METHOD

SIGNAL PROCESSING
AS AN UNSTABLE
MATERIAL.

Crathes Audio builds experimental software effects around nonlinear response, audio-driven movement and deliberate imperfection.

Octavium Core is the first expression of that approach: compact enough to understand, open enough to produce useful accidents.

01 / SHAPE

NONLINEAR

Colour and filtering are part of the signal path, not decoration added afterwards.

02 / RESPOND

SIGNAL-LED

The source itself can become a control signal and participate in the result.

03 / MOVE

IN MOTION

Continuous modulation turns a static setting into a system that keeps evolving.

ILLUSTRATIVE SIGNAL STUDIES Not live audio analysis.

04 / ACCOUNT

OCTAVIUM CORE / INTERFACE

Enlarged Octavium Core plug-in interface