Luis Ricardo Bras was an Argentinian cartoonist, graphic designer and filmmaker, a pioneer of animation.
Short film animated with the "scratch on film" technique, scratched directly on 16mm film and then toned with solvent inks. The soundtrack belongs to the Bongo Band.
In the meeting between Bras and Norman Mc Laren, the latter explained to him his experiments with "drawn sound", how to intervene the optical sound track of 35mm film with black and transparent marks that then become noises. In this short film Bras generated small synthetic sounds synchronised with the images.
After meeting the Scottish/Canadian animator Norman Mc Laren at a documentary and animation film festival in Cordoba in 1962, Bras experimented with the technique of "direct scratching on film" by synchronising the image with music and noises. In "TOC TOC TOC TOC" Bras recorded on the optical soundtrack of 16mm film the sound of a pencil tapping against a table. Then, seeing the drawing of the optical sound, he invented graphics that he scratched with the pick of an old phonograph on the veiled film.