- files:
  - "whistle_1.ogg"
  - "whistle_2.ogg"
  - "whistle_3.ogg"
  - "whistle_4.ogg"
  - "whistle_5.ogg"
  - "whistle_6.ogg"
  - "whistle_7.ogg"
  license: "CC0-1.0"
  copyright: "User strongbot on freesound.org. Modified by Fahasor on github"
  source: "https://freesound.org/people/strongbot/sounds/568995/"

- files:
  - "trench_whistle_1.ogg"
  - "trench_whistle_2.ogg"
  - "trench_whistle_3.ogg"
  license: "CC0-1.0"
  copyright: "Deleted user on freesound.org."
  source: "https://freesound.org/people/deleted_user_2104797/sounds/324539/"