Bamboo Grove

How it's made

Source

living bamboo culms collide with 3-7 ms rounded noise contacts; rubbing nodes generate intermittent stick-slip friction, while leaves scatter broadband turbulence in the same gusts.

Body

untuned culms have bending modes at 180-600 Hz and ratios 1:2.76:5.4 with 45-220 ms decays; a separate 260-850 Hz air cavity gives a hollow tok rather than the sustained ring of a wind chime.

Envelope

5-20 s gusts drive leaf level and contact density; a loose 3-6 s sway adds clustered knocks. Friction swells for 0.6-1.7 s with smooth 90 ms attacks and 300 ms releases, never a continuous whistle.

Layers

low air at 140-900 Hz, stereo leaf noise at 1.4-7 kHz, short modal knocks and moving friction bands at 250-1800 Hz; friction pulses accelerate and relax as the contact slides under changing load.

Variation

independent seeded streams vary culm size, strength, pan and friction speed per event. Wind controls shared movement; size lowers modes; contacts, creak and leaves set physical layer balance.

Presets

sparse sheltered foliage, exposed gust-driven collisions, close dry culm friction, and deep mature culms offer distinct densities, spectral balances and body scales without musical tuning.

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