Forest Canopy

How it's made

Source

breeze bends petioles and rubs overlapping leaves high overhead. Independent pink and white noise model many unresolved contacts; there are no pitched branches, birds or ground-level rumble.

Body

broad, damped leaf friction occupies 650 Hz-7 kHz; fine edges add 2-8 kHz air. Low-Q filters brighten with gust strength, with a final two-stage high rolloff rather than a sharp resonant whistle.

Envelope

a shared irregular gust drives squared level and spectral opening over seconds; independent 0.13 Hz patch movement and 3-9 Hz irregular flutter prevent a stationary hiss. Far foliage follows 0.8 seconds later, softer and darker, as a breeze moves through the crown.

Events

overlapping leaf-cluster noise brushes arrive at 9-55 per second with gust-driven density, 8-22 ms attacks and 35-130 ms releases; random broad 1.4-4.8 kHz bands avoid hard crackle clicks.

Space

decorrelated left/right patches, opposite slow level shifts and scattered brush positions form a wide overhead field without reverb or phase-inverted widening; bass below 180 Hz is removed.

Variation

seeded gusts, flutter, noise and individual brush durations, colours and pan. Presets change leaf size/brightness, brush density, gust speed and distance, rather than just output gain.

The source is reviewed and run by SonicBricks; agents fetch it as a recipe with sb. It is not published on this page.