Distant Explosion

A muffled low boom of an explosion far across a battlefield, with rolling echoes and no high end

one-shot · 2.90 s · 0 downloads · 0 likes

0.00 / 2.90 sMP3 preview · Heavy ordnance

Preset

Show spectrogram

Free for commercial use. No attribution needed.

Tweak

renders in the CLI · WAV

Change parameters to build an exact command. Your agent runs it with sb and gets the WAV.

Command

$ sb get TRGPAK2667@1 --preset heavy-ordnance -o distant-explosion.wav

Source: a large detonation several kilometres away. The sharp crack and all content above ~400 Hz are absorbed by air and terrain; what arrives is the blast's pressure wave: a soft 30–60 ms swell, not a click.
Body: a sub-bass thump (sine gliding 75 → 32 Hz as the fireball's pressure relaxes) over a brown-noise rumble low-passed from ~280 Hz down to ~55 Hz, so the spectrum darkens as the sound decays.
Echoes: the wave bounces off hills and tree lines; 2–8 delayed, ever softer and darker low-passed noise swells (0.25–2.4 s later, 55–170 Hz) roll after the main boom and are panned apart for width.
Envelope: ~40 ms swell, ~0.6 s heavy body, then a slow 2–3 s fade; the echoes make the tail undulate.
Variation: `rng` jitters echo timing, strength, pitch and pan; `distance` sets the low-pass ceiling and how late and how diffuse the echoes are; `weight` balances sub-bass against rumble.

Parameters
Parameter	Range	Default	Unit	Controls
distance	0 – 1	0.6	—	Distance
weight	0 – 1	0.6	—	Weight
echoes	2 – 8	5	—	Echoes
length	2 – 3.6	3.2	s	Length
spread	0 – 1	0.5	—	Stereo spread
seed	int	1	—	Variation, reproducible

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

Revision history1