Credits

Where the sounds and other content in the mods come from.

The mods themselves

Sounds

Ambient Sounds (`AmbientSounds/data/`)

All eight sounds are from Pixabay and are used under the Pixabay Content License. They were trimmed, loudness-matched, looped and converted to OGG Vorbis with AmbientSounds/tools/prepare_sounds.sh.

File	Used for	Source
`crickets.ogg`	Crickets at night	Pixabay
`ocean_waves.ogg`	Waves on the coast	Pixabay
`nature_day.ogg`	Countryside birds by day	Pixabay
`boat_horn.ogg`	Ship horns	Pixabay
`city_noise.ogg`	City noise	Pixabay
`distant_storm.ogg`	Distant storm	Pixabay
`airport_outside.ogg`	Airport noise	Pixabay
`seagull.ogg`	Seagulls	Pixabay

Engine, ship and weather sounds

Also from Pixabay under the Pixabay Content License, trimmed, loudness-matched, looped and converted to OGG Vorbis by each mod's tools/prepare_sounds.sh.

Mod	Files	Used for
Air Traffic (`AirTraffic/data/sounds/`)	airliner, bizjet (made from the airliner recording), smallprop, turboprop, helicopter, blimp	Engines of the AI aircraft
Sea Traffic (`SeaTraffic/data/sounds/`)	cargoship, small_outboard, jetski, bow_wave	Ship and boat engines, bow wave
Extreme Weather (`ExtremeWeather/data/sounds/`)	blizzard_wind, tornado_wind, hurricane_wind, thunder_near/mid/far (nine clips cut from the thunder recordings), rain_on_glass	Storm winds, thunder, rain on the canopy
Ambient Sounds (`AmbientSounds/data/`)	wind	Wind and rushing air

Pixabay does not require attribution; the files are credited here anyway.

Sound Barrier (`SoundBarrier/data/sonicboom.wav`)

Source: Pixabay.
Licence: Pixabay Content License.

Game files

The mods don't include any of the game's files. The game's DLLs are only referenced at build time and are not included in the repo or the release pack.

Libraries

BepInEx (LGPL-2.1) and Harmony (MIT) are referenced at build time but not included. Players install BepInEx themselves.

Trademarks

Not affiliated with or endorsed by Jundroo. SimplePlanes is a trademark of Jundroo, LLC.

Air Traffic

Airliner craft by the Gravy Mods authors. Sounds from Pixabay (Pixabay Content License).

Extreme Weather

Sounds from Pixabay (Pixabay Content License). tools/prepare_sounds.sh shows how the original files were trimmed, loudness-matched, looped and (for the thunder) cut into separate claps.

Sea Traffic

Sounds from Pixabay (Pixabay Content License). They have been trimmed, downmixed to mono, loudness-matched, crossfaded into seamless loops and converted to OGG Vorbis (tools/prepare_sounds.sh).

File	Used for
`data/sounds/cargoship.ogg`	Cargo ships, carriers, destroyers and ferries
`data/sounds/small_outboard.ogg`	Tugs, fishing boats, motor yachts, speedboats, attack boats, sailboats under motor
`data/sounds/jetski.ogg`	Jet skis
`data/sounds/bow_wave.ogg`	Bow wave and hull wash of every vessel under way

Ambient Sounds

All sounds are from Pixabay and are used under the Pixabay Content License. They have been trimmed, loudness-matched, crossfaded into seamless loops and converted to OGG Vorbis (tools/prepare_sounds.sh).

File	Used for
`ocean_waves.ogg`	Waves on the coast
`seagull.ogg`	Seagulls
`boat_horn.ogg`	Ship horns
`city_noise.ogg`	City noise
`airport_outside.ogg`	Airport noise
`nature_day.ogg`	Countryside birds by day
`crickets.ogg`	Crickets at night
`distant_storm.ogg`	Distant storm
`wind.ogg`	Wind and rushing air