The sound track for a screen-based production usually requires the efforts of many people working in different roles and different phases of the production.
In any style of production, from a TV magazine program to a mini series; from a minimalist documentary to a sonically complex feature film, there is always more than one of the sound crafts involved.
One person or many may fill the different sound production and post-production roles which, in Australia, usually breakdown as follows:-

	LOCATION (PRODUCTION) SOUND	- including Location Recordists, Boom Swingers, Playback Operators and FX Recordists
	SOUND EDITING	- including Dialogue Editors, FX Editors, ADR Editors and Foley Editors
	SOUND MIXERS AND ENGINEERS	- including Dubbing (Re-Recording) Mixers, Scoring Engineers, ADR Engineers and Foley Engineers
	TELEVISION PRODUCTION AUDIO	- including Audio Directors and Boom Operators
	MULTIMEDIA	- includes audio for computer games, educational software and other interactive computer and video audio

ASSG members come from all of these areas. The important contribution of Composers and Musicians to the screen soundtrack should not be forgotten. In Australia, composers are represented by the Australian Guild of Screen Composers.