https://www.nfsa.gov.au/sites/default/files/2025-02/Colour%20TV%20Mega%20Menu%203%20TVs_1000x745%20px.jpg
Sound
Vibrations that cause pressure variations in the air (or other elastic bodies) surrounding the source of the vibrations and which produce auditory effects that can be heard.
These vibrations can also be picked up on a microphone, which converts the pressure variations into voltage variations.
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.