File: audio/72312dd3.mp3
Author: StickInTheMud
URL: http://soundbible.com/1446-Bike-Horn.html
License: Creative Commons Sampling Plus 1.0 (https://creativecommons.org/licenses/sampling+/1.0/)

File: audio/6a215611.mp3
Author: Mike Koenig
URL: http://soundbible.com/1695-Train-Honk-Horn-2x.html
License: Creative Commons Attribution 3.0 (https://creativecommons.org/licenses/by/3.0/us/)

File: audio/28d6b5be.mp3
Author: KevanGC
URL: http://soundbible.com/1598-Electronic-Chime.html
License: Public Domain

File: audio/8bce59b5.mp3
Author: Dianakc
URL: http://soundbible.com/2062-Metal-Gong-1.html
License: Creative Commons Attribution 3.0 (https://creativecommons.org/licenses/by/3.0/us/)

File: audio/9404f598.mp3
Author: Mike Koenig
URL: http://soundbible.com/1746-Ship-Bell.html
License: Creative Commons Attribution 3.0 (https://creativecommons.org/licenses/by/3.0/us/)

File: audio/5cf807ce.mp3
Author: Microsift
URL: http://soundbible.com/1630-Computer-Magic.html
License: Public Domain

File: audio/ebe7deb8.mp3
Author: Big Daddy
URL: http://soundbible.com/1619-Music-Box.html
License: Public Domain

File: audio/2ed9509e.mp3
Author: Go445
URL: http://soundbible.com/2084-Glass-Ping.html
License: Creative Commons Attribution-NonCommercial (https://creativecommons.org/licenses/by-nc/3.0/us/)

File: audio/2e13802a.mp3
Author: Brian Rocca
URL: http://soundbible.com/1992-Pin-Dropping.html
License: Creative Commons Attribution 3.0 (https://creativecommons.org/licenses/by/3.0/us/)

File: audio/bd50add0.mp3
Author: Marianne Gagnon
URL: http://soundbible.com/1682-Robot-Blip.html
License: Creative Commons Attribution 3.0 (https://creativecommons.org/licenses/by/3.0/us/)

File: audio/36e93c27.mp3
Author: Marianne Gagnon
URL: http://soundbible.com/1669-Robot-Blip-2.html
License: Creative Commons Attribution 3.0 (https://creativecommons.org/licenses/by/3.0/us/)

File: audio/b38e515f.mp3
Author: jason
URL: http://soundbible.com/1766-Fire-Pager.html
License: Public Domain

File: audio/f62b45bc.mp3
Author: His Self
URL: http://soundbible.com/1815-A-Tone.html
License: Public Domain

File: audio/54b867f9.mp3
Author: cdrk
URL: https://www.freesound.org/people/cdrk/sounds/264594/
License: Creative Commons Attribution 3.0 Unported (http://creativecommons.org/licenses/by/3.0/)

File: audio/1a5066bd.mp3
Author: Aiwha
URL: https://www.freesound.org/people/Aiwha/sounds/196106/
License: Creative Commons Attribution 3.0 Unported (http://creativecommons.org/licenses/by/3.0/)

File: audio/a258e906.mp3
Author: sethlind
URL: https://www.freesound.org/people/sethlind/sounds/265012/
License: Creative Commons Public Domain Dedication (http://creativecommons.org/publicdomain/zero/1.0/)

File: audio/72cb1b7f.mp3
Author: Daenn
URL: https://www.freesound.org/people/Daenn/sounds/159158/
License: Creative Commons Public Domain Dedication (http://creativecommons.org/publicdomain/zero/1.0/)

File: audio/85cab25d.mp3
Author: GowlerMusic
URL: https://www.freesound.org/people/GowlerMusic/sounds/266566/
License: Creative Commons Attribution 3.0 Unported (http://creativecommons.org/licenses/by/3.0/)

File: audio/88736c22.mp3
Author: freefire66
URL: https://www.freesound.org/people/freefire66/sounds/175946/
License: Creative Commons Public Domain Dedication (http://creativecommons.org/publicdomain/zero/1.0/)

File: audio/5e122cee.mp3
Author: Roentgine
URL: https://www.freesound.org/people/Roentgine/sounds/74710/
License: Creative Commons Attribution 3.0 Unported (http://creativecommons.org/licenses/by/3.0/)

File: audio/92ff2a8a.mp3
Author: jacobsteel
URL: https://www.freesound.org/people/jacobsteel/sounds/243607/
License: Creative Commons Attribution 3.0 Unported (http://creativecommons.org/licenses/by/3.0/)

File: audio/0f034826.mp3
Author: bone666138
URL: http://freesound.org/people/bone666138/sounds/198841/
License: Creative Commons Attribution 3.0 Unported (http://creativecommons.org/licenses/by/3.0/)

File: audio/be75f155.mp3
Author: Koyber
URL: http://freesound.org/people/Koyber/sounds/160484/
License: Creative Commons 0 1.0 Universal Public Domain Dedication (https://creativecommons.org/publicdomain/zero/1.0/)

File: audio/fee369b7.mp3
Author: AlaskaRobotics
URL: http://freesound.org/people/AlaskaRobotics/sounds/221085/
License: Creative Commons 0 1.0 Universal Public Domain Dedication (https://creativecommons.org/publicdomain/zero/1.0/)

Files: audio/4cf03078.mp3, audio/edab7b0d.mp3
Author: FoolBoyMedia
URL: http://freesound.org/people/FoolBoyMedia/sounds/264498/
License: Creative Commons Attribution-NonCommercial (https://creativecommons.org/licenses/by-nc/3.0/us/)
Notes: The original audio was split into separate tick/tock sounds and converted to mp3.

Files: audio/af607ff1.mp3, audio/fd23aaf3.mp3
Author: AntumDeluge
URL: http://freesound.org/people/AntumDeluge/sounds/188033/
License: Creative Commons 0 1.0 Universal Public Domain Dedication (https://creativecommons.org/publicdomain/zero/1.0/)
Notes: The original audio was split into separate tick/tock sounds and converted to mp3.

File: audio/ad6eac9e.mp3
Author: Druminfected
URL: http://freesound.org/people/Druminfected/sounds/250552/
License: Creative Commons 0 1.0 Universal Public Domain Dedication (https://creativecommons.org/publicdomain/zero/1.0/)
Notes: The original audio was cropped and converted to mp3.

File: fe5d2a62.mp3
Author: Tobiasz 'unfa' Karoń
URL: http://freesound.org/people/unfa/sounds/243749/
License: Creative Commons 0 1.0 Universal Public Domain Dedication (https://creativecommons.org/publicdomain/zero/1.0/)
Notes: The original audio was converted to mp3.

Files: audio/bc4e3db2.mp3, audio/f9efd11b.mp3
Author: FlashTrauma
URL: http://freesound.org/people/FlashTrauma/sounds/398275/
License: Creative Commons 0 1.0 Universal Public Domain Dedication (https://creativecommons.org/publicdomain/zero/1.0/)
Notes: The original audio was denoised, split into separate tick/tock sounds, and converted to mp3.

Files: audio/bced7c21.mp3, audio/9bd67f7e.mp3
Author: HollowRiku
URL: http://freesound.org/people/HollowRiku/sounds/146781/
License: Creative Commons Attribution 3.0 Unported (https://creativecommons.org/licenses/by/3.0/)
Notes: The original audio was split into separate tick/tock sounds and converted to mp3.

Files: audio/875326f9.mp3, audio/cba5f173.mp3
Author: differentieel
URL: http://freesound.org/people/differentieel/sounds/245455/
License: Creative Commons Attribution-NonCommercial (https://creativecommons.org/licenses/by-nc/3.0/us/)
Notes: The original audio was split into separate tick/tock sounds and converted to mp3.

Files: audio/6a981bfc.mp3, audio/fd64de98.mp3
Author: InspectorJ
URL: http://freesound.org/people/InspectorJ/sounds/343130/
License: Creative Commons Attribution 3.0 Unported (https://creativecommons.org/licenses/by/3.0/)
Notes: The original audio was split into separate tick/tock sounds and converted to mp3.

Files: audio/8dc834f8.mp3, audio/831a5549.mp3
Author: andychristen
URL: http://freesound.org/people/andychristen/sounds/268185/
License: Creative Commons 0 1.0 Universal Public Domain Dedication (https://creativecommons.org/publicdomain/zero/1.0/)
Notes: The original audio was split into separate tick/tock sounds and converted to mp3.

Files: audio/2122d2a4.mp3, audio/a273ba0c.mp3
Author: Rollo145
URL: http://freesound.org/people/Rollo145/sounds/256477/
License: Creative Commons Attribution 3.0 Unported (https://creativecommons.org/licenses/by/3.0/)
Notes: The original audio was split into separate tick/tock sounds and converted to mp3.

Files: audio/6103cd58.mp3, audio/cad167ea.mp3
Author: atka187
URL: http://freesound.org/people/atka187/sounds/409091/
License: Creative Commons 0 1.0 Universal Public Domain Dedication (https://creativecommons.org/publicdomain/zero/1.0/)
Notes: The original audio was split into separate tick/tock sounds and converted to mp3.

File: images/settings.svg
Author: Freepik
URL: https://www.flaticon.com/free-icon/settings_263100
License: Flaticon Basic License (https://file000.flaticon.com/downloads/license/license.pdf)

File: images/history.svg
Author: Lucy G
URL: https://www.flaticon.com/free-icon/stats_118798
License: Creative Commons Attribution 3.0 Unported (https://creativecommons.org/licenses/by/3.0/)

File: images/pause.svg
Author: Chanut
URL: https://www.flaticon.com/free-icon/pause_151859
License: Flaticon Basic License (https://file000.flaticon.com/downloads/license/license.pdf)

File: images/play.svg
Author: Chanut
URL: https://www.flaticon.com/free-icon/play-button_151860
License: Flaticon Basic License (https://file000.flaticon.com/downloads/license/license.pdf)

File: images/restart.svg
Author: Freepik
URL: https://www.flaticon.com/free-icon/undo-circular-arrow_44426
License: Flaticon Basic License (https://file000.flaticon.com/downloads/license/license.pdf)