Jet Flyover

How it's made

Source

continuous jet exhaust turbulence; pink broadband roar plus white 1.5-9 kHz shear-layer hiss. Independent filtered pink pressure noise supplies the 35-230 Hz rumble, not a pitched sub oscillator.

Body

broad exhaust bands near 260 and 850 Hz; weak fan partials near 740, 1487 and 2242 Hz. Low-Q bands and slight stochastic fan wander avoid a stationary whistle or metallic ringing.

Motion

a subsonic straight pass at 130-230 m/s, clearance 95-240 m. Retarded emission time gives distance, radial velocity and c/(c+radial velocity) Doppler for both noise bands and fan partials.

Envelope

inverse-distance spreading peaks near 2.5 s; aft exhaust directivity makes the roar linger after crossing. Distance closes the high-frequency cutoff; a 0.25 s entry and 0.65 s exit end at 5.9 s.

Layers

forward fan whine gives way to aft roar; coherent core moves across stereo with a quiet, decorrelated turbulent skirt. No room reverb or supersonic boom is added.

Variation

seeded fan tuning +/-1% and independent 3-13 Hz turbulent fluctuations; speed, clearance, exhaust weight, fan prominence and direction distinguish fast low, heavy, higher and turbine passes.

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