Change parameters to build an exact command. Your agent runs it with sb and gets the WAV.
Command
$ sb get 5E9JNPXGF8@1 --preset cinematic -o sub-drop.wav
How it's made
Source
an electronic sub-bass drop. A sine oscillator whose pitch dives exponentially from a high start (about 110 Hz) down to a sub floor (about 32 Hz), the way a kick or a "bass drop" synth is built.
Body
three layers. (1) The fundamental sine carries the weight below 60 Hz. (2) A second sine one octave up with the same dive, kept quiet, gives the low end an audible shape on small speakers. (3) A short, low-passed noise thump marks the start of the drop. Light tanh saturation adds a few low harmonics without harshness.
Envelope
a 4 ms fade-in avoids a click, the level holds briefly, then decays smoothly and almost exponentially. The pitch dive is fastest in the first third and settles on the floor.
Variation
length, floor pitch, dive depth, weight (saturation) and thump amount; `rng` nudges the start pitch by a few percent.
Parameters
Parameter
Range
Default
Unit
Controls
length
0.8 – 4
2
s
Length
floor
24 – 55
32
Hz
Floor pitch
dive
0 – 1
0.6
—
How far above the floor the pitch starts
weight
0 – 1
0.35
—
Weight
thump
0 – 1
0.4
—
Thump
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.