- files: ["doorknob_1.ogg"]
  license: "CC-BY-3.0"
  copyright: 'by Leady.'
  source: "https://freesound.org/people/Leady/sounds/12739/"

- files: ["doorknob_2.ogg"]
  license: "CC0-1.0"
  copyright: 'by BenjaminNelan.'
  source: "https://freesound.org/people/BenjaminNelan/sounds/321087/"