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SOUND DESIGN WITH LATTICE

Deep techniques for feedback networks. Parameter ranges, filter strategies, and the thinking behind effective patches.

DESIGN PHILOSOPHY

Lattice rewards boldness. Conservative settings hide its unique capabilities.

Lean into feedback

Lattice is a feedback network synthesizer. Its defining characteristic is the complex interaction between delay nodes through the feedback matrix. Low feedback makes it behave like a conventional multi-tap delay. High feedback reveals what makes it different.

Start with feedback at 85% or higher. Reduce only if the sound becomes uncontrollable. You'll discover more interesting territory by pulling back from the edge than by cautiously approaching it.

Immediate impact

Every sound you create should produce audible, interesting output immediately. For effects, the dry signal should transform noticeably. For instruments, a single MIDI note should produce a complete, engaging sound.

If you find yourself thinking "this will sound better when I add more," stop and reconsider. The core sound should work now. Additional layers enhance what's already compelling.

Distinctive character

Generic reverb-like settings waste the potential of a feedback network. Push toward sounds that would be difficult or impossible to achieve with conventional effects. Metallic resonances. Self-oscillating drones. Rhythmic patterns that emerge from interference. Frozen textures that evolve without input.

If your sound could be approximated by a regular delay plugin, you haven't gone far enough.

FEEDBACK

The global feedback parameter controls how much signal recirculates through the network.

Feedback determines whether energy dissipates or accumulates. Below about 70%, sounds decay naturally. Above 85%, the network reaches equilibrium where energy circulates indefinitely. The network becomes selective: frequencies that align with delay times get reinforced, others cancel out.

Feedback ranges
  • Below 70%: Conventional delay behavior, natural decay
  • 70-85%: Extended sustain, sounds linger but eventually fade
  • 85-98%: Rich, complex textures that sustain indefinitely
  • Above 100%: Controlled instability, self-oscillation, chaotic behavior
Volume warning
Presets with feedback above 100% are marked with [!] in the name. These can produce sudden volume spikes. Start with your monitors at a reasonable level.
Damping interaction

Damping controls high-frequency rolloff in the feedback path. It interacts significantly with feedback. High feedback with low damping can create harsh, runaway highs. High feedback with high damping produces rumbling, bass-heavy textures.

Damping ranges
  • 0-15%: Bright, crystalline, metallic textures
  • 15-35%: Warmer, more natural sounds
  • 40%+: Dark, muffled, subterranean atmospheres
Try this:
Set feedback to 95% and damping to 0%. Feed in a bright sound and listen to how the highs build up. Then slowly increase damping to 40% and hear the character shift from metallic to warm to dark.

NODE CONFIGURATION

The number of nodes and their delay times define the network's fundamental character.

Node count

More nodes means more complexity. Two or three nodes create simple, predictable patterns with clear rhythmic relationships. Four to six nodes produce rich, evolving textures. Seven or eight nodes create maximum complexity where individual delays blur into continuous texture.

Node count guidelines
  • 2-3 nodes: Clear rhythmic delays, pitched resonances, simple metallic tones
  • 4-5 nodes: Complex but still structured, good balance of clarity and richness
  • 6-8 nodes: Dense textures, ambient washes, maximum harmonic complexity
Delay time relationships

The relationship between delay times matters more than absolute values. Simple integer ratios (100ms, 200ms, 300ms) create regular, predictable patterns. Prime number ratios (23ms, 47ms, 73ms, 101ms) prevent alignment and create more organic movement.

Avoid round numbers and simple multiples. The slight irregularity of prime relationships produces patterns that never quite repeat, which the ear perceives as natural and evolving.

Try this:
Set up 4 nodes at 100ms, 200ms, 300ms, 400ms with high feedback. Listen to the mechanical regularity. Then change to 97ms, 151ms, 223ms, 347ms and notice how the pattern becomes more alive.
Delay time ranges

Very short delays (2-20ms) create pitched resonances and metallic tones, similar to physical modeling synthesis. Medium delays (50-200ms) produce rhythmic echoes and comb filtering. Long delays (500ms+) build atmospheric washes and ambient textures.

Mixing delay ranges within a single patch creates evolving, unpredictable movement. A patch might use short delays for pitch and long delays for atmosphere simultaneously.

FILTER SETTINGS

Each node's filter shapes its frequency contribution to the network.

Filters in a feedback network behave differently than in a synthesizer. Because signal passes through them repeatedly, even subtle filtering compounds with each cycle. A gentle lowpass rolloff becomes aggressive over time. A resonant peak becomes a dominant frequency.

Filter types
  • Lowpass: Warm, focused tones. High cutoff (4-8kHz) for subtle darkening, low cutoff (500-2kHz) for lo-fi character
  • Highpass: Air and presence. Removes mud without affecting brightness. Good for keeping long delays from becoming boomy
  • Bandpass: Formant-like peaks that give sounds a voice-like quality. Essential for metallic and vocal textures
  • Notch: Carves out specific frequencies. Useful for preventing buildup at problematic frequencies
Resonance

Filter resonance between 50% and 90% produces the most useful results. Below 50%, the filter effect is subtle. Above 90%, resonance can dominate the sound or cause instability at high feedback values.

High resonance bandpass filters create the formant peaks that give Lattice its distinctive "singing" quality. Place several bandpass filters at different frequencies to build complex vocal-like timbres.

Try this:
Set up 4 nodes with bandpass filters at 500Hz, 1200Hz, 2400Hz, and 3600Hz, each with 80% resonance. Feed in any sound. The network will emphasize these frequencies, creating a spectral fingerprint.
Varying filter types

Using different filter types across nodes creates complex spectral shapes. A patch might use lowpass on nodes 1 and 4, bandpass on nodes 2 and 5, and highpass on nodes 3 and 6. This distribution prevents frequency buildup while maintaining tonal interest.

DRIVE TYPES

Drive adds harmonic content and controlled distortion that compounds through the feedback path.

Drive types
  • Soft: Warm saturation, gentle compression. Adds harmonic richness without aggression
  • Hard: Aggressive clipping, more obvious distortion. Creates edge and presence
  • Fold: Waveshaping that generates complex harmonics. Distinctive, almost metallic character
  • Bit: Digital artifacts and aliasing. Lo-fi character, crushed textures
Drive amounts

Drive amounts between 20% and 60% work well in feedback networks. Lower values add subtle warmth. Higher values create obvious distortion that compounds through the feedback path. Very high drive (70%+) can cause signal buildup and should be paired with lower feedback values.

Varying drive types

Different drive types on different nodes create complex harmonic interactions. Use soft clipping on low-frequency nodes to maintain bass clarity while adding fold or bit on high-frequency nodes for texture. The combination produces sounds that are warm at the bottom and aggressive at the top.

Try this:
Set up 4 nodes. Put Soft drive at 30% on nodes 1-2 (your low-frequency nodes) and Fold drive at 40% on nodes 3-4 (high-frequency). The bass stays solid while the highs get complex.

EXCITER SOURCES

A feedback network is passive. It shapes and sustains sound but needs energy from somewhere.

You can feed Lattice external audio, or use the built-in exciter sources. The exciter choice affects the initial character, but the network transforms everything that enters it. A simple sine wave becomes complex. A noise burst becomes pitched. The network decides what survives.

Exciter sources
  • Impulse: Short burst that excites all frequencies briefly. Creates struck and plucked tones. The network's resonances determine the resulting pitch and timbre
  • Noise: Sustained broadband energy. Works for bowed and blown sounds. White noise is bright, pink is balanced, brown is dark
  • Oscillator: Simple pitched tone that the network transforms. Sine for pure fundamentals, saw for rich harmonics, square for hollow tones
Pitch tracking

Enable pitch tracking when creating playable instruments. MIDI notes control the exciter's pitch, and the network resonates sympathetically. The result tracks the keyboard while maintaining the network's characteristic timbre.

Velocity sensitivity

Velocity sensitivity makes instruments feel responsive. Light touches produce quiet, gentle sounds. Hard strikes produce loud, energetic attacks. The exciter level scales with MIDI velocity.

Attack shaping

Short attack times (0-10ms) create percussive sounds with clear transients. Longer attacks (50-200ms) enable bowed and pad-like textures where sound fades in gradually. The attack parameter controls how quickly the exciter reaches full level.

Try this:
Set up short delay times (3-15ms), enable Impulse exciter with pitch tracking. Play the keyboard. You've created a physical modeling synthesizer where the network is the resonating body.

MODULATION

The LFO creates movement by continuously varying parameters over time.

Lattice has a single LFO that can target different parameters. This keeps the interface simple while allowing varied movement. Choose what should move based on the sound you're creating.

Modulation targets
  • Delay Times: Pitch drift, chorus effects, tape-like warble. Creates organic, detuned textures
  • Filter Cutoffs: Timbral sweeps, wah-like movement. Makes sounds breathe and evolve
  • Feedback: Swells and pulses, dynamic sustain. Creates rhythmic intensity variations
  • Exciter Decay: Varying note lengths, expressive dynamics. Changes character of each trigger
Rate and tempo sync

Slow rates (0.05-0.3 Hz) create glacial movement for ambient textures. Medium rates (0.5-2 Hz) produce noticeable but smooth variation. Fast rates (4-10 Hz) create vibrato and tremolo effects. Tempo sync locks the LFO to your DAW's tempo for rhythmic modulation.

LFO shapes

Sine and triangle shapes create smooth, continuous movement. Square creates abrupt changes, good for rhythmic effects. Sample & hold creates random stepped values, useful for glitchy textures or unpredictable variation.

Try this:
Set LFO to target Feedback with a slow triangle wave (0.1 Hz) and 30% depth. The sound swells up and fades down continuously, creating an endless breathing texture.

PRESET CATEGORIES

Factory presets are organized by use case. Each category demonstrates different Lattice capabilities.

STARTING POINTS
These presets introduce Lattice's core concepts while remaining immediately playable. Each guides you toward a specific workflow.
  • "First Contact" teaches processing external audio
  • "Signal Forge [!]" demonstrates pushing feedback toward instability
  • "Infinite Room" showcases freeze for ambient sound design
TRANSFORM
Process external audio aggressively. These presets expect signal from your DAW and reshape it through the feedback network.
  • Mix values between 70-100% to emphasize the wet signal
  • Short delays (20-100ms) create metallic textures and comb filtering
  • Medium delays (100-500ms) produce rhythmic echoes
  • Long delays (500ms+) build atmospheric washes
PLAY
Self-contained instruments using the internal exciter. Respond to MIDI input without external audio.
  • Impulse exciters create struck and plucked tones
  • Noise bursts work for bowed and blown sounds
  • Short delay times (2-20ms) create pitched resonances
  • Enable pitch tracking for melodic playing
PULSE
Tempo-synchronized patterns that lock to your DAW's tempo. Transform simple input into complex polyrhythmic textures.
  • Sync-enabled delay times create tempo-locked echoes
  • LFO modulation of feedback creates breathing rhythms
  • Different note divisions across nodes generate polyrhythmic complexity
DRIFT
Atmospheric textures and evolving soundscapes. Longer delay times, higher node counts, subtle modulation.
  • Slow LFO rates (0.05-0.3 Hz) create glacial movement
  • High stereo spread enhances sense of space
  • Lower damping sustains brightness; higher damping creates darkness