Grain Discharge

What it is

Grain Discharge is a granular effect where grains are driven by a fluid simulation instead of a static trigger model. Incoming audio excites the simulation, cavitation events appear, and those events spawn grains from a rolling history of your source signal.

Because the simulation is the event driver, it shapes timing, impact, movement, and character of the grain cloud. The same loop does not repeat in exactly the same micro-pattern every pass, so you get recurring identity without rigid repetition. You can steer behavior with Burst, Density, Friction, Speed, Size, Fade In, Linger, and pitch-family controls, while the visual field stays tightly linked to what the engine is actually doing.

At lower Linger and moderate Burst, it can do reactive rhythmic sprays and articulated textures. Push Density and Linger with softer Fade In, and it shifts into smeared grain clouds and reverb-like atmospheres. It also works beautifully as a motion layer before downstream effects when you want controlled unpredictability that still feels musical.

Slot sequencer

Grain Discharge is fairly slow by nature, so the slot sequencer is not really about fast stepped tricks. It works better as a way of moving between different grain-cloud states: denser and lighter textures, softer and sharper onset behaviour, or changes in how long the cloud hangs in the air after each event.

Because the granular engine reacts over time, longer slews usually give the nicest results. Instead of hearing obvious sequence steps, you get evolving sprays, smeared transitions, and gradual changes in how the cloud remembers the source material. It feels more like steering a weather system than clocking a traditional modulation lane.

Highlights

How producers use it

• Reactive rhythmic grain sprays from drums and percussion loops
• Smeared, cloud-like atmospheres from sustained synth or guitar input
• Reverb-adjacent texture layers with more motion and edge
• Creative transitions where controlled instability feels musical, not random

Fit and focus

Great fit for:

• granular effects with movement and personality
• science-inspired DSP concepts
• playable unpredictability in production workflows

Probably not for:

• fully deterministic grain repetition every pass
• transparent utility-only processing
• very large sessions on older CPUs without freezing, bouncing, or closing inactive plugin windows

Questions people ask

Compatibility

macOS 12+, Windows 10/11
macOS: AU/VST3, Windows: VST3

These plugins use detailed real-time processing and are happiest on reasonably recent CPUs, especially when several instances are running at once.

The science-native interface simulations are beautiful to watch and interact with, but in larger sessions, closing plugin windows you are not actively editing can free up resources for other hungry plugins. Audio processing continues normally.