Stream Over Stones

How it's made

Source

shallow water shearing over submerged stones; independent pink-noise currents occupy 180 Hz–4.8 kHz, with softer white-noise ripples above 1.6 kHz rather than a falling jet's spray.

Body

entrained 0.8–3.5 mm bubbles ring near 0.9–4 kHz with upward pitch drift; larger air pockets between stones add damped 450–1500 Hz gurgles, not ringing stone impacts or a basin resonance.

Events

65–200 tiny bubbles/s overlap; 12–30 pocket releases/s have 3 ms rounded attacks and 35–110 ms decays. Sparse 12–50 ms noise ripples soften the individual water contacts.

Envelope

continuous 10 s loop; independent 0.2–1.7 Hz random flow fluctuations move the level, bubble density and broad spectral colour. The renderer crossfades the steady-state loop seam.

Layers

a quiet low-mid current supports foreground gurgles and a restrained high ripple bed; high-pass filtering removes subsonic pressure, and a 6.5 kHz low-pass keeps the surface soft.

Variation

seeded radius, pitch rise, damping, strength and position change per event. Flow, pocket depth, aeration, surface brightness and width create shallow, pooled, brisk and distant views.

Space

dry outdoor stereo, with independent left/right currents and bounded event positions.

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