Audio Book		Heavy Audio Book		Audio Theatre
	1	2	3	4	5
Source	Written word	Written word	Written word	Written word
		Movies/TV	Movies/TV
					Originals
Script	Unabridged	Unabridged
		Abridged	Abridged
			Adapted	Adapted
				Original	Original
Voice	Single	Single	Single
			Multiple	Multiple or Actors	Actors
Style	Reading	Reading
		Performance	Performance	Performance	Performance
		Characters	Characters	Characters	Characters
			Less Narration	Less Narration	Less Narration
					No Narration
Sounds	None	None	None
		Backgrounds	Backgrounds	Backgrounds	Backgrounds
			Spot Effects	Spot Effects	Spot Effects
				Location Recording	Location Recording
Effects	None	None
		Simple *1	Simple *1	Simple *1	Simple *1
			controlled accoustics and effects	controlled accoustics and effects	controlled accoustics and effects
				natural accoustics	natural accoustics
Music	None	None
		Open and Close	Open and Close	Open and Close	Open and Close
		Transitions	Transitions	Transitions	Transitions
			S and B	Stings and bridges	Stings and bridges
				Underscoring	Underscoring
					Original Score

*1 = Simpleffects like Reverb & Filters
Chart as defined by Richard Fish and Henry Howard