Beyond ‘67 SMPTE timecode: YaLTC and TicTacSync

Want to sync dual-system sound without breaking the bank? Doing multicam? Multisound? Need clock drift correction? tictacsync does it all!

  • YaLTC is the audio track format. Stands for Yet another Linear TimeCode

  • TicTacSync is the hardware dongle generating YaLTC (one for each recording device). Low cost, essentially off the shelve components (as low as 26USD). At these links you can find cabling instruction for Adafruit boards (nicest but costlier) and the Arduino code. photo

  • tictacsync is the postproduction CLI program that processes recordings shot with the dongle(s). See repo.

Yes, it’s a Tentacle Sync alternative but it’s open source and this project goes back to 2011, well before their 2015 Indiegogo campaign. Anyway, this isn’t rocket science… on every forum each year someone pitches this idea of a portable GPS disciplined LTC generator, I just made one. There’s a catch: it is not SMPTE LTC (more on that later).

I’m progressively migrating content here, from its Hackaday page.