Ball2D sound credits

Ball Kicked, 1044 — Joseph SARDIN (BigSoundBank), CC0-1.0.
https://bigsoundbank.com/ball-kicked-s1044.html
https://creativecommons.org/publicdomain/zero/1.0/
Two short excerpts, mono conversion, gain and fades.

07 Football - Goalpost.wav — 14GPanskaValaChristoffer (Freesound).
https://freesound.org/people/14GPanskaValaChristoffer/sounds/420164/
Licensed under Creative Commons Attribution 4.0:
https://creativecommons.org/licenses/by/4.0/
Edited from the MP3 preview: short excerpt, mono conversion, filtering, gain and fades.

Referee whistle blow, gymnasium.wav — SpliceSound (Freesound), CC0-1.0.
https://freesound.org/people/SpliceSound/sounds/218318/
https://creativecommons.org/publicdomain/zero/1.0/
Edited from the high-quality MP3 preview: trimmed leading silence and long room tail,
light filtering, gain and boundary fades. Natural whistle blow retained.

OBJMisc-Samsung Galaxy Smartphone, CU_Net, Swoosh, Impact_Nicholas Judy_TDC —
designerschoice (Freesound).
https://freesound.org/people/designerschoice/sounds/852794/
Licensed under Creative Commons Attribution 4.0:
https://creativecommons.org/licenses/by/4.0/
Edited from the high-quality MP3 preview: one net impact excerpt, mono conversion,
filtering, gain and fades.

Light Body thud (on clothing) — JonasTisell (Freesound), CC0-1.0.
https://freesound.org/people/JonasTisell/sounds/496187/
https://creativecommons.org/publicdomain/zero/1.0/
Edited from the high-quality MP3 preview: mono conversion, filtering and fades.

CRWDReac-SOCCER_Millerntor Stadium Crowd Reaction General Ambience 01 —
itmightgetloud (Philipp Feit, Sound Of Sankt Pauli, Freesound), CC0-1.0.
https://freesound.org/people/itmightgetloud/sounds/829454/
https://creativecommons.org/publicdomain/zero/1.0/
Edited from the high-quality MP3 preview: one stereo excerpt made into a crossfaded loop,
filtering, gain and 24 kHz storage.

Soccer stadium Oehh.wav — Sandermotions (Freesound), CC0-1.0.
https://freesound.org/people/Sandermotions/sounds/494362/
https://creativecommons.org/publicdomain/zero/1.0/
Edited from the high-quality MP3 preview: stereo excerpt, filtering, gain, fades and
24 kHz storage.

Football-crowd-GOAL.wav — paulw2k (Freesound).
https://freesound.org/people/paulw2k/sounds/196461/
Licensed under Creative Commons Attribution 4.0:
https://creativecommons.org/licenses/by/4.0/
Edited from the high-quality MP3 preview: stereo excerpt, filtering, gain, fades and
24 kHz storage.