He filmed and recorded the sound on his own, using no artificial light.
Tool created a progressive sound using alternative metal elements and odd rhythms.
The resulting analysis data is then used in a second stage to resynthesize the sound using a band of oscillators.
When you record vocals, you'll capture the sound using a microphone.
What you'll need to do is record brief snippets to represent each sound using any means you like.
"He says he just can't get the same kind of sounds using the new digital equipment."
Another, more common example which produces sound using stick-slip friction is the grasshopper.
I can reproduce any human sound using my mimicry integrals.
Sometimes electronic music artists create special sounds using tape recorders too.
Other artists released that sound using songs we'd written.