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Rising Tension Drone

A slow climbing ensemble drone that gains layers, bow air and brightness throughout a long crescendo.

kind
texture
length
15 s
downloads
0
id
EN7YVMZFX2

texture · 15 s · 0 downloads · 0 likes

0.00 / 15 sMP3 preview · Strained cluster
Preset
Spectrogram of “Rising Tension Drone”, Strained cluster preset
Spectrogram of “Rising Tension Drone”, Strained cluster preset: time left to right, frequency bottom to top.
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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 EN7YVMZFX2@1 --preset strained-cluster -o rising-tension-drone.wav

How it's made

Source
an imagined bowed string ensemble under increasing tension; continuous friction excites twelve detuned sinusoidal partials, with independent pink-noise bow air on each side.
Body
partial ratios 1, 2, 3, 4, 6 and 8 model the string spectrum; paired pitches differ by 3-12 cents. Broad air bands (Q 0.65) and a 240 Hz opening low-pass model increasing bow pressure and brightness.
Envelope
over the requested duration (default 30 s), pitch climbs 5-19 semitones without resetting. Upper pairs enter with smooth overlapping ramps from 8-78 percent; gain rises from 0.16 to 1.
Modulation
independent 0.07-0.19 Hz amplitude breathing and sub-cent pitch drift avoid frozen tones; beating speeds up as the fundamental rises. The centred low pair preserves weight in mono.
Ending
0.6 s onset and a 0.75 s cosine release remove clicks; there is no impact or pulse sequence.
Variation
seeded phases, bow noise and drift; presets offer low restrained suspense, broad string pressure, airy high ascent, and a close dissonant cluster with stretched upper partials.
Parameters
ParameterRangeDefaultUnitControls
root42 – 11065HzStarting pitch
rise5 – 1912semitonesPitch climb
brightness0 – 10.6—Final brightness
density0 – 10.65—Upper layer weight
air0 – 10.4—Bow air
strain0 – 10.25—Tuning strain
seedint1—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.

Credits and creation history (JSON)
Revision history1
  1. r12026-10-25engine 1.0.1use('EN7YVMZFX2@1')