[PD] residualism

[siggmuss]

hi, i just have read a text about residualism , or the  possibilities of
some digital tools about exploring the non-audible part of sound:
"sound is never described in what is absent, missing or overlooked:
negative space...most of the digital detritus gets noise reduced,
multi-band compressed, brickwall filtered out...but we now find
ourselves immersed in the next wave of digital audio...new tools have
emerged that are capable of exploring both the signal and what's behind
it..."


do anybody have tried that in pd?
which options do i have to explore this?


many thanks

siggmus