Ideas of Things to Do with Audio
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A few things humans do with sound:
	Make non-linguistic vocal sounds
		(sigh, grunt, shout, sing without words, etc.)
	Encode language and symbols as vocal sounds
		(speak, sing with words, etc.)
	Make incidental sounds
		(footsteps, machine noises, etc.)
	Make "Music"
		To communicate actual meaning (codes, musical symbols)
		To communicate emotions
		To communicate temporal structure
		To accompany some other event (dance, film, etc.)
		To mark a ritual or event (wedding march, etc.)

Things to do with digital audio (or just audio in general):
	Amplify in live situation
	Mix sounds together
	Record (store)
	Playback* (with amplification or reduction or other alteration)
	*Note that recording and playback permit transportation of sound in time and space. Sound is otherwise temporally dependent and disappears into the past.
	Delay (playback in quasi-real time)
	Speed change (with accompanying pitch change)
	Reverse
	Organize (i.e., make soudn databases or musical structures)
	Edit
	Generate/synthesize electronically (MANY methods of synthesis)
	Sample
	Loop
	Filter (MANY methods of filtering/modification)
	Display (graphically or as text) the sound wave or some aspect of its content
	Analyze (sonically and musically)
	Control continuously and/or
	Impose an envelope or control function to modify
	Normalize
	Gate (remove according to some criterion)
	Limit (suppress excess amplitude)
	Compress / Expand
	Remove / Suppress noise
	Spatialize
		panning
		reverberation
		multi-channel diffusion
		delay (Haas effect)
		changing delay (Doppler effect)
		etc.
	Perform
	Make "audio art" (incorporate audio in sculpture, installation, etc.)
	Compose (organize sounds by intuition or by system)