A wax cylinder recording in progress

NFSA technician Gerry O'Neill supervises the wax cylinder recording of Keith Potger's song 'Guardian Angel, Guiding Light'
https://www.nfsa.gov.au/sites/default/files/09-2016/recording_process2.jpg
Title:
A wax cylinder recording in progress
Year
2013

NFSA Senior Disc Preservationist, Gerry O'Neill, closely supervises the recording of Keith Potger's Guardian Angel, Guiding Light.

Recording on wax cylinder is a purely mechanical process, whereby the performer sings down a metal horn and the energy of that sound is concentrated onto a thin circular mica disc in the recorder head. The vibrations of the disc move a thin glass rod which cuts the spiral groove in the cylinder.