Sound credits
Every sound in SnapClack is public domain (CC0) — the wooden ratchets and the camera mechanics alike. The originals were cut to a single take, trimmed to their first and last click, and normalised.
Wind-up
Ratchet (ratchet1.wav) — sgossner — CC0 — freesound.org/s/375708/
Short swell
Ratchet4.aif — blevesque4 — CC0 — freesound.org/s/333613/
Three turns
Ratchet.wav — KenRT — CC0 — freesound.org/s/319996/
Quick crank
Ratchet1.wav — orestes910 — CC0 — freesound.org/s/108849/
Long crank
Ratchet.wav — romulofs — CC0 — freesound.org/s/127533/
Clacker
Football Clacker — JarredGibb — CC0 — freesound.org/s/263887/
Clacker, slow
Football Clacker — JarredGibb — CC0 — freesound.org/s/263887/
Orchestra roll
Percussion - B4 (Ratchet1-Slow_v1_rr1_Sum.wav) — sgossner — CC0 — freesound.org/s/373461/
Fast rattle
Rattle_3_Fast — SlayJay_Sounds — CC0 — freesound.org/s/857478/
Wooden gear
Wooden Gear LQ 5 Sprocket Rattling.wav — hisoul — CC0 — freesound.org/s/461166/
Shutter burst
Burst_Shutter_Film_SLR_Camera.wav — Lumamorph — CC0 — freesound.org/s/505476/
Rangefinder
Leica_M11_Shutter_burst_dry_sound_96kHz_32bit-float — TSP-Talk — CC0 — freesound.org/s/720702/
Film camera
Bolex_Camera.wav — cartoonrob — CC0 — freesound.org/s/538345/
Motor winder
C220 camera winder.wav — adeluc4 — CC0 — freesound.org/s/125319/
CC0 asks for nothing, but the people who recorded these deserve the credit anyway, and the app carries this same list in Settings.
The files SnapClack ships are not the originals: each was cut from the CC0 preview, re-cut to its first and last detected click, peak-normalised to −1 dBFS and encoded to mono 44.1 kHz AAC.