Modulation

The modulation system lets you animate any parameter over time using modulation sources routed through the modulation matrix.

Open the modulation matrix panel via View > Show Modulation Matrix or press it in the toolbar.

MODULATION SOURCES

Add a source by clicking "Add Source" in the modulation panel and choosing a type:

LFO (Low Frequency Oscillator)

• Shapes: Sine, Triangle, Square, Saw, Reverse Saw, Random
• Frequency: Rate in Hz (free-running) or synced to tempo
• Phase: Initial phase offset (0-1)
• Unipolar: Toggle between 0-1 and -1 to +1 output
• Sync Mode: Free or tempo-synced
• Note Division (synced): Whole, Half, Dotted Quarter, Quarter, Dotted Eighth,
• Quarter Triplet, Eighth, Dotted Sixteenth, Eighth Triplet, Sixteenth,
• Sixteenth Triplet, Thirty-Second

Envelope (ADSR)

• Attack: Rise time in seconds
• Decay: Fall time to sustain level
• Sustain: Hold level (0-1)
• Release: Fade time after note off
• Trigger: Select which node's note events trigger the envelope

Step Sequencer

• Steps: Number of steps (default 8)
• Values: Per-step level (0-1), click and drag to draw
• Rate: Steps per beat
• Smooth: Toggle interpolation between steps

Random (Sample & Hold)

• Mode: Sample & Hold, Smooth, or Noise
• Rate: Triggers per beat
• Smoothness: Interpolation amount (0-1)
• Seed: Random seed for reproducibility

Envelope Follower

• Tracks the amplitude of an audio source and outputs it as a modulation signal. Select which audio track to follow.

Audio Sidechain

• Triggers an envelope or gate from an audio input. Select the source track and configure threshold and response.

Macro Knobs

• User-defined knobs that map to multiple targets with individual scaling. Macro sources appear in the modulation panel and can be assigned to MIDI CC for hardware control.

• In plugin builds, the first 8 macro sources are also exposed to the host DAW as automatable parameters named Macro 1 through Macro 8. Automate them from your DAW, or MIDI-learn them in the host, to drive whole banks of Noemi parameters from a single automation lane. The bridge is bidirectional -- twisting a macro card in Noemi writes automation back to the host, and host automation moves the card.

ROUTING

To create a modulation route:

1. 1Add a modulation source
2. 2Click "Add Route" on the source
3. 3Choose a target parameter from the dropdown
4. 4Adjust the depth knob

DEPTH

The depth control (-1.0 to +1.0) sets how strongly the source affects the target. Negative depth inverts the modulation. Multiple sources can modulate the same target (their effects are added together).

ADVANCED FEATURES

• Rate Multiplication - Double or halve modulation speed relative to tempo
• Response Curves — Custom curves (exp, log, S-curve) per route
• Cross-Modulation — Modulation sources can modulate other modulation parameters (e.g., LFO rate -> another LFO)
• MIDI-to-Modulation — Map incoming MIDI CC, velocity, or aftertouch as modulation sources