A 16 second seamless loop of waves on a shore: each wave rises fast, breaks, then takes its time draining back, with a hiss of foam right at the break. Use it for seaside scenes, sleep, slow reading, or a background that should feel like it has been going on for hours.
wash: white noise, low-pass 480 Hz, Q 0.55, driven by an asymmetric envelope: 18% rise, then a long 82% drain (power 2.2), floor 0.3, one wave every 8 s second wave scaled by 0.9 + 0.1 cos(2 pi t / 16), so the two are not identical foam: white noise, band-pass 2.6 kHz, Q 0.7, level 0.12 + 0.6 x a break envelope that starts at 15% of each wave (10 ms attack, 80 ms decay) grit: white noise, band-pass 900 Hz, Q 0.4, at 0.18, always present seam: 0.6 s rendered past the end and equal-power crossfaded (sin/cos) back onto the head noise seeds: 181 (wash), 182 (foam), 183 (grit)