Exciter parameters

83 parameters on this page.

Exciter

exciter

Options: Hand Strike · Felt Mallet · Hard Mallet · Drumstick · Wire Brush · Metal Pipe · Metal Chain · Bow · Stiff Point Scrape · Heavy Grinding · Corrugated Drag · Tension Rise · Pneumatic Jet · Electromagnetic Hum · Tension Snap · Particle Rain
Default: Hand Strike

Hand Strike: Fleshy Kelvin-Voigt impact with heavy damping and an explicit mute tail.
Felt Mallet: Soft non-linear mallet with a compressive felt layer over a harder core.
Hard Mallet: Rigid Hertzian strike tuned around mass, brightness, and bounce suppression.
Drumstick: Light rigid impact with explicit rebound energy and micro-bounce count.
Wire Brush: Impulse-cloud brush model with density, spread, stiffness, and stochastic variance.
Metal Pipe: Bi-directional pipe impact with a ringing exciter body feeding back into the collision.
Metal Chain: Clustered heavy-link impacts with separate timing spread and high-frequency rattle coloration.
Bow: Smooth stick-slip bow friction with pressure, speed, grip, and slip controls from the documented bow model.
Stiff Point Scrape: Rigid point scrape where chatter pitch and damping define the squeal character.
Heavy Grinding: Heavy rough drag with separate baseline force, tearing grit, and noise color.
Corrugated Drag: Drag motion across ridges with explicit spacing, depth, and moving contact mass.
Tension Rise: Integrate-and-fire creak model driven by pull speed, threshold, randomness, and crack sharpness.
Pneumatic Jet: Band-limited turbulence exciter shaped by nozzle focus and overload chaos.
Electromagnetic Hum: Continuous Lorentz-force injection with direct control of mains pitch, proximity, and sag.
Tension Snap: Hook-and-release mechanism with explicit pull distance, stiffness, and break force.
Particle Rain: Continuous debris cloud controlled by flow density, particle weight, and variance.

Pressure

exciter_pressure

How hard the exciter presses on the object. Higher drives the object harder: louder and more strained.

Range: -12.0 dB – +12.0 dB
Default: +0.0 dB

Speed

exciter_speed

How fast the exciter moves across or against the object. Higher sounds brighter and more agitated.

Range: ×0.50 – ×2.00
Default: ×1.00

Roughness

exciter_roughness

Irregularity of the contact. Higher adds grit, noise and jitter to the excitation.

Range: ×0.00 – ×3.33
Default: ×1.00

Model controls

Hand Mass

hand_mass

Range: 0.4 – 3
Default: 1.7

Per model
Model	Label	Range	What it does
Hand Strike	Hand Mass	0.4 – 3	Weight of the striking hand. Heavier hands push more low end into the object.

Flesh Stiffness

flesh_stiffness

Range: 0.05 – 0.8
Default: 0.425

Per model
Model	Label	Range	What it does
Hand Strike	Flesh Stiffness	0.05 – 0.8	Stiffness of the hand's flesh at contact. Higher gives a shorter, brighter slap.

Flesh Damping

flesh_damping

Range: 0.3 – 1.8
Default: 0.75

Per model
Model	Label	Range	What it does
Hand Strike	Flesh Damping	0.3 – 1.8	How much the flesh absorbs the impact. Higher softens the attack.

Mute Decay

mute_decay

Range: 0.85 – 0.999
Default: 0.9245

Per model
Model	Label	Range	What it does
Hand Strike	Mute Decay	0.85 – 0.999	How long the hand rests on the object after the strike. Lower mutes the ring sooner.

Mallet Mass

mallet_mass

Range: 0.4 – 3.5
Default: 1.5

Per model
Model	Label	Range	What it does
Felt Mallet	Mallet Mass	0.4 – 3.5	Weight of the mallet head. Heavier mallets stay in contact longer and bring out the low modes.
Hard Mallet	Mallet Mass	0.4 – 3.5	Weight of the mallet head. Heavier mallets stay in contact longer and bring out the low modes.

Felt Softness

felt_softness

Range: 0.1 – 1.3
Default: 0.94

Per model
Model	Label	Range	What it does
Felt Mallet	Felt Softness	0.1 – 1.3	Softness of the felt covering. Higher gives a rounder, darker strike.

Core Hardness

core_hardness

Range: 0.5 – 4.5
Default: 2.5

Per model
Model	Label	Range	What it does
Felt Mallet	Core Hardness	0.5 – 4.5	Hardness of the mallet's core under the felt. Higher adds a brighter click to loud hits.

Compression Curve

compression_curve

Range: 2 – 5
Default: 2.9

Per model
Model	Label	Range	What it does
Felt Mallet	Compression Curve	2 – 5	How quickly the felt stiffens as it is squeezed. Higher makes hard hits much brighter than soft ones.

Material Stiffness

material_stiffness

Range: 0.5 – 5
Default: 2.75

Per model
Model	Label	Range	What it does
Hard Mallet	Material Stiffness	0.5 – 5	Stiffness of the mallet head. Higher gives a sharper, brighter strike.

Impact Damping

impact_damping

Range: 0.1 – 1.3
Default: 0.46

Per model
Model	Label	Range	What it does
Hard Mallet	Impact Damping	0.1 – 1.3	Energy lost in the contact itself. Higher softens and shortens the attack.

Stick Mass

stick_mass

Range: 0.05 – 1.25
Default: 0.65

Per model
Model	Label	Range	What it does
Drumstick	Stick Mass	0.05 – 1.25	Weight of the drumstick. Heavier sticks drive the object harder and darker.

Tip Stiffness

tip_stiffness

Range: 0.8 – 6.8
Default: 3.8

Per model
Model	Label	Range	What it does
Drumstick	Tip Stiffness	0.8 – 6.8	Stiffness of the stick's tip. Higher gives a sharper, brighter tick.

Restitution Bounciness

restitution_bounciness

Range: 0.2 – 0.9
Default: 0.41

Per model
Model	Label	Range	What it does
Drumstick	Restitution Bounciness	0.2 – 0.9	How much the stick bounces back after contact. Higher gives livelier, more rebound-rich hits.

Micro Bounce Limit

micro_bounce_limit

Range: 2 – 8
Default: 4

Per model
Model	Label	Range	What it does
Drumstick	Micro Bounce Limit	2 – 8	Maximum number of small rebounds after a strike. Higher allows a buzzier, rattling attack.

Wire Density

wire_density

Range: 10 – 130
Default: 46

Per model
Model	Label	Range	What it does
Wire Brush	Wire Density	10 – 130	Number of wires in the brush. Higher gives a denser, smoother swish.

Spread Duration

spread_duration

Range: 10 – 250
Default: 130

Per model
Model	Label	Range	What it does
Wire Brush	Spread Duration	10 – 250	How long the brush's wires take to land, in milliseconds. Higher smears the hit into a sweep.

Brush Wire Stiffness

brush_wire_stiffness

Range: 0 – 1
Default: 0.3

Per model
Model	Label	Range	What it does
Wire Brush	Wire Stiffness	0 – 1	Stiffness of the wires (brush wires or spring coils, by model). Higher sounds brighter and tighter.

Amplitude Randomization

amplitude_randomization

Range: 0 – 1
Default: 0.3

Per model
Model	Label	Range	What it does
Wire Brush	Amplitude Randomization	0 – 1	Random level variation between wires or hits. Higher sounds looser and more organic.

Pipe Mass

pipe_mass

Range: 0.4 – 2.6
Default: 1.5

Per model
Model	Label	Range	What it does
Metal Pipe	Pipe Mass	0.4 – 2.6	Weight of the striking pipe. Heavier pipes hit harder and darker.

Metal Stiffness

metal_stiffness

Range: 0.5 – 5.5
Default: 3

Per model
Model	Label	Range	What it does
Metal Pipe	Metal Stiffness	0.5 – 5.5	Stiffness of the striking metal. Higher gives a harder, brighter clang.

Pipe Pitch

pipe_pitch

Range: 0.5 – 2.5
Default: 1.1

Per model
Model	Label	Range	What it does
Metal Pipe	Pipe Pitch	0.5 – 2.5	Tuning of the striking pipe's own ring. Higher raises its overtone.

Pipe Ring Decay

pipe_ring_decay

Range: 0.96 – 0.999
Default: 0.9795

Per model
Model	Label	Range	What it does
Metal Pipe	Pipe Ring Decay	0.96 – 0.999	How long the striking pipe's own ring lasts. Higher adds a longer metallic tail to each hit.

Link Count

link_count

Range: 3 – 15
Default: 9

Per model
Model	Label	Range	What it does
Metal Chain	Link Count	3 – 15	Number of links in the dropped chain. Higher gives a longer, busier rattle.

Chain Mass

chain_mass

Range: 0.2 – 1.4
Default: 0.8

Per model
Model	Label	Range	What it does
Metal Chain	Chain Mass	0.2 – 1.4	Weight of the dropped chain. Heavier chains hit harder and darker.

Drop Envelope Spread

drop_envelope_spread

Range: 40 – 400
Default: 220

Per model
Model	Label	Range	What it does
Metal Chain	Drop Envelope Spread	40 – 400	How spread out in time the links land, in milliseconds. Higher stretches the cascade.

Internal Rattle

internal_rattle

Range: 0 – 1
Default: 0.3

Per model
Model	Label	Range	What it does
Metal Chain	Internal Rattle	0 – 1	Rattling between the links. Higher adds more clatter to the strike.

Rattle Color

rattle_color

Range: 0 – 1
Default: 0.3

Per model
Model	Label	Range	What it does
Metal Chain	Rattle Color	0 – 1	Tone of the rattle. Higher is brighter.

Bow Pressure

bow_pressure

Range: 0.2 – 2
Default: 1.1

Per model
Model	Label	Range	What it does
Bow	Bow Pressure	0.2 – 2	How hard the bow presses on the object. Higher is louder and grittier, and too much makes it crunch.

Bow Speed

bow_speed

Range: 0.1 – 2
Default: 1.05

Per model
Model	Label	Range	What it does
Bow	Bow Speed	0.1 – 2	How fast the bow moves. Higher gives a brighter, more stable tone.

Rosin Grip

rosin_grip

Range: 0.05 – 1.5
Default: 0.485

Per model
Model	Label	Range	What it does
Bow	Rosin Grip	0.05 – 1.5	Static friction of the rosin. Higher grips harder, giving a stronger, rougher stick-slip.

Slip Curve

slip_curve

Range: 0.05 – 1.5
Default: 0.485

Per model
Model	Label	Range	What it does
Bow	Slip Curve	0.05 – 1.5	How quickly friction falls once the bow slips. Higher gives a sharper, more aggressive tone.

Scrape Speed

scrape_speed

Range: 0.1 – 2.5
Default: 0.82

Per model
Model	Label	Range	What it does
Stiff Point Scrape	Scrape Speed	0.1 – 2.5	How fast the point scrapes along the surface. Higher raises the chatter's pitch and density.

Point Pressure

point_pressure

Range: 0.1 – 1.5
Default: 0.8

Per model
Model	Label	Range	What it does
Stiff Point Scrape	Point Pressure	0.1 – 1.5	How hard the point presses into the surface. Higher is louder and harsher.

Chatter Pitch

chatter_pitch

Range: 0.1 – 1.5
Default: 0.52

Per model
Model	Label	Range	What it does
Stiff Point Scrape	Chatter Pitch	0.1 – 1.5	Pitch of the stick-slip chatter. Higher sounds squealier.

Chatter Damping

chatter_damping

Range: 0.1 – 0.9
Default: 0.66

Per model
Model	Label	Range	What it does
Stiff Point Scrape	Chatter Damping	0.1 – 0.9	How quickly each chatter burst dies away. Higher sounds drier and tighter.

Grind Speed

grind_speed

Range: 0.1 – 2.5
Default: 0.82

Per model
Model	Label	Range	What it does
Heavy Grinding	Grind Speed	0.1 – 2.5	Speed of the grinding wheel. Higher gives a brighter, denser roar.

Grind Pressure

grind_pressure

Range: 0.1 – 1.9
Default: 1

Per model
Model	Label	Range	What it does
Heavy Grinding	Grind Pressure	0.1 – 1.9	How hard the grinder presses on the object. Higher is louder and more aggressive.

Surface Grit

surface_grit

Range: 0 – 1
Default: 0.3

Per model
Model	Label	Range	What it does
Heavy Grinding	Surface Grit	0 – 1	Coarseness of the ground surface. Higher adds noise and crackle.

Grit Color

grit_color

Range: 0 – 1
Default: 0.3

Per model
Model	Label	Range	What it does
Heavy Grinding	Grit Color	0 – 1	Tone of the grit noise. Higher is brighter.

Drag Speed

drag_speed

Range: 0.1 – 2.5
Default: 0.82

Per model
Model	Label	Range	What it does
Corrugated Drag	Drag Speed	0.1 – 2.5	How fast the exciter drags across the ridges. Higher raises the ridge rate.

Ridge Spacing

ridge_spacing

Range: 0.01 – 0.2
Default: 0.143

Per model
Model	Label	Range	What it does
Corrugated Drag	Ridge Spacing	0.01 – 0.2	Distance between the surface's ridges. Higher spaces the ticks further apart.

Ridge Depth

ridge_depth

Range: 0 – 2
Default: 0.6

Per model
Model	Label	Range	What it does
Corrugated Drag	Ridge Depth	0 – 2	Depth of the ridges. Higher gives stronger, louder ticks.

Exciter Mass

drag_exciter_mass

Range: 0.2 – 2
Default: 1.1

Per model
Model	Label	Range	What it does
Corrugated Drag	Exciter Mass	0.2 – 2	Weight of the dragged exciter. Heavier sounds lower and heavier.

Pull Speed

pull_speed

Range: 0.05 – 1.55
Default: 0.8

Per model
Model	Label	Range	What it does
Tension Rise	Pull Speed	0.05 – 1.55	How fast the tension builds. Higher makes creaks come faster.

Break Threshold

break_threshold

Range: 0.1 – 1.6
Default: 0.85

Per model
Model	Label	Range	What it does
Tension Rise	Break Threshold	0.1 – 1.6	Tension at which the material slips. Higher builds more tension before each creak.

Slip Stochasticity

slip_stochasticity

Range: 0 – 1
Default: 0.3

Per model
Model	Label	Range	What it does
Tension Rise	Slip Stochasticity	0 – 1	Randomness of the slips. Higher sounds more irregular.

Creak Sharpness

creak_sharpness

Range: 0.2 – 1.4
Default: 0.56

Per model
Model	Label	Range	What it does
Tension Rise	Creak Sharpness	0.2 – 1.4	Sharpness of each creak. Higher sounds brighter and more percussive.

Air Pressure

air_pressure

Range: 0.1 – 2.1
Default: 1.1

Per model
Model	Label	Range	What it does
Pneumatic Jet	Air Pressure	0.1 – 2.1	Pressure of the air jet. Higher is louder and more turbulent.

Nozzle Width

nozzle_width

Range: 0.1 – 1.6
Default: 0.85

Per model
Model	Label	Range	What it does
Pneumatic Jet	Nozzle Width	0.1 – 1.6	Width of the nozzle. Higher gives a broader, darker hiss.

Turbulence Chaos

turbulence_chaos

Range: 0 – 2
Default: 0.6

Per model
Model	Label	Range	What it does
Pneumatic Jet	Turbulence Chaos	0 – 2	Instability of the airflow. Higher sounds rougher and more chaotic.

Mains Frequency

mains_frequency

Range: 40 – 120
Default: 80

Per model
Model	Label	Range	What it does
Electromagnetic Hum	Mains Frequency	40 – 120	Frequency of the electromagnetic drive, in hertz. It sets the hum's base pitch.

Coil Proximity

coil_proximity

Range: 0 – 2
Default: 1

Per model
Model	Label	Range	What it does
Electromagnetic Hum	Coil Proximity	0 – 2	How close the coil sits to the object. Higher couples more strongly and sounds louder.

Voltage Sag

voltage_sag

Range: 0 – 2
Default: 0.6

Per model
Model	Label	Range	What it does
Electromagnetic Hum	Voltage Sag	0 – 2	Instability of the supply. Higher makes the hum waver and sag.

Pull Distance

pull_distance

Range: 0.1 – 1.5
Default: 0.8

Per model
Model	Label	Range	What it does
Tension Snap	Pull Distance	0.1 – 1.5	How far the hook pulls before releasing. Higher gives a bigger snap.

Hook Stiffness

hook_stiffness

Range: 0.2 – 2.2
Default: 1.2

Per model
Model	Label	Range	What it does
Tension Snap	Hook Stiffness	0.2 – 2.2	Stiffness of the hook. Higher gives a sharper release.

Snap Force

snap_force

Range: 0.1 – 2
Default: 0.67

Per model
Model	Label	Range	What it does
Tension Snap	Snap Force	0.1 – 2	Force of the release. Higher is louder and harder.

Flow Rate

flow_rate

Range: 0.1 – 3.1
Default: 1.6

Per model
Model	Label	Range	What it does
Particle Rain	Flow Rate	0.1 – 3.1	How many particles fall per second. Higher gives a denser rain.

Particle Mass

particle_mass

Range: 0.05 – 1
Default: 0.525

Per model
Model	Label	Range	What it does
Particle Rain	Particle Mass	0.05 – 1	Weight of each particle. Heavier particles hit harder and darker.

Mass Variance

mass_variance

Range: 0 – 2
Default: 0.6

Per model
Model	Label	Range	What it does
Particle Rain	Mass Variance	0 – 2	Variation in particle weight. Higher sounds more uneven.

Gesture Modifiers

Env Amount

env_amount

How much the envelope shapes the excitation. Lower flattens it.

Range: 0 – 1
Default: 1

Velocity To Peak

velocity_to_peak

How much velocity changes the envelope's peak. Higher makes soft notes quieter.

Range: 0 – 1
Default: 0.5

Global Time Scale

global_time_scale

Scales every envelope time. Higher slows the whole envelope.

Range: 0.1 – 10
Default: 1

Velocity To Level

velocity_to_level

How much velocity changes the note's level. Higher gives more dynamic range.

Range: 0 – 1
Default: 1

Velocity To Time

velocity_to_time

How much velocity shortens the envelope. Higher makes hard notes snappier.

Range: 0 – 1
Default: 0.15

Curve Tension

curve_tension

Shape of the envelope's segments. Turning it away from the middle bends them more.

Range: -1 – 1
Default: 0

Force Envelope (AD)

Attack

env_attack

Time the note takes to reach full level. Higher fades in slower.

Range: 0.001 – 2
Default: 0.05
Shown: Attack with struck exciters (AD envelope); Attack with specialty exciters (ADSR envelope)

Release

env_release

Time to fade after the note ends. Higher fades longer.

Range: 0.01 – 5
Default: 0.5
Shown: Release with struck exciters (AD envelope); Release with specialty exciters (ADSR envelope)

Force Envelope (MSEG)

Onset Time

mseg_onset

Length of the onset stage that starts the friction envelope. Higher eases the note in slower.

Range: 0.001 – 1
Default: 0.01
Shown: Onset with friction exciters (MSEG)

Onset Level

mseg_onset_level

Level of the friction envelope's onset stage. Higher starts the note stronger.

Range: 0 – 1
Default: 0.01
Shown: Onset Lvl with friction exciters (MSEG)

MSEG Attack

mseg_attack

Time the note takes to reach full level. Higher fades in slower.

Range: 0.001 – 2
Default: 0.05
Shown: Attack with friction exciters (MSEG)

Hold

mseg_hold

Time the envelope holds at its peak before decaying. Higher holds longer.

Range: 0 – 2
Default: 0.02
Shown: Hold with friction exciters (MSEG)

MSEG Decay

mseg_decay

Time to fall from the peak to the sustain level. Higher decays slower.

Range: 0.01 – 5
Default: 0.3
Shown: Decay with friction exciters (MSEG)

MSEG Sustain

mseg_sustain

Level held while the note is down. Higher stays louder.

Range: 0 – 1
Default: 0.5
Shown: Sustain with friction exciters (MSEG)

MSEG Release

mseg_release

Time to fade after the note ends. Higher fades longer.

Range: 0.01 – 5
Default: 0.1
Shown: Release with friction exciters (MSEG)

Loop Mode

loop_mode

Options: Off · Forward · Ping-Pong
Default: 0
Shown: Loop with friction exciters (MSEG)

Off: The envelope plays once.
Forward: The envelope repeats between the Start and End stages.
Ping-Pong: The envelope runs back and forth between the Start and End stages.