# Sound sources

All current WAVs are forged (pitch/layer/trim via ffmpeg — see repo history)
from these CC0 packs, no attribution required:

- The Free Firearm Sound Library (Ben Jaszczak et al.) — CC0,
  https://opengameart.org/content/the-free-firearm-sound-library
  → all ballistic weapon fire sounds (AK-47/AR-15/PPSh/Mosin/Savage/
  Mossberg/Nova/Ruger/Carl Gustav recordings) + reload (Model 1894 lever)

- Kenney Impact Sounds — https://kenney.nl/assets/impact-sounds (CC0)
- Kenney Sci-Fi Sounds — https://kenney.nl/assets/sci-fi-sounds (CC0)
- Kenney Interface Sounds — https://kenney.nl/assets/interface-sounds (CC0)
- Kenney Music Jingles — https://kenney.nl/assets/music-jingles (CC0)

Runtime masters are built by `tools/build_audio_assets.py`. It retains the
recorded transient, layers a filtered body and short reflection tail, controls
peaks, and constructs seamless movement beds from pinned source recordings.

The industrial movement/UI pass uses:

- "Wind Loop" — field recording by Jonathan Shaw (InspectorJ), loop edit by
  AntumDeluge, CC-BY 3.0,
  https://opengameart.org/content/wind-loop
- "Scrapes" by AntumDeluge — recorded cinder-block friction, CC0,
  https://opengameart.org/content/scrapes
- "Mechanical Sounds" by Brian MacIntosh — clunks, ratchets and impacts, CC0,
  https://opengameart.org/content/mechanical-sounds
- "Steam boiler sound loop" by bart — metallic generator source, CC0,
  https://opengameart.org/content/steam-boiler-sound-loop
- "Mech Stomp / Step Sound" by hc/qubodup — low mechanical body, CC0,
  https://opengameart.org/content/mech-stomp-step-sound
- "Mechanical Explosion" by Spring Spring — industrial debris layer, CC0,
  https://opengameart.org/content/mechanical-explosion
- "Air whoosh" by pyranostudios — movement/thrust air layer, CC0,
  https://opengameart.org/content/air-whoosh
- "Rocket Engine" by theMinesAreShakin — low jump/dash thruster body, CC0,
  https://opengameart.org/content/rocket-engine

Every remote input is SHA-256 pinned in the builder. No continuous runtime cue
is made from generated random noise.

Current menu music: "PYNCHON" by James Gargette/cinameng, CC0,
https://opengameart.org/content/pynchon

Legacy menu music retained as `music_menu.ogg`: "Menu Music" by mrpoly, CC0,
https://opengameart.org/content/menu-music