https://www.nfsa.gov.au/sites/default/files/2025-02/Colour%20TV%20Mega%20Menu%203%20TVs_1000x745%20px.jpg
Synchroniser
A mechanism employing a common rotary shaft that has sprockets which, by engaging perforations in the film, pass corresponding lengths of picture and sound films simultaneously. This effectively keeps two (or more) films in synchronism during the editing process.
https://www.nfsa.gov.au/sites/default/files/uploads/2010/08/31/ganger.jpg
The National Film and Sound Archive of Australia acknowledges Australia’s Aboriginal and Torres Strait Islander peoples as the Traditional Custodians of the land on which we work and live and gives respect to their Elders both past and present.