mothmouth

everything is drenched in change

Sitri | 25
what if squids were gay


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in reply to @geometric's post:

in reply to @geometric's post:

while i was working on my own lil sampler i think i discovered the answer to why you might want to do this one purely accidentally

if you take something slow and speed it up, you introduce aliasing artifacts. My intuitive (and probably wrong) explanation for this: you can safely represent frequencies up to the nyquist frequency. speeding up means those frequencies jump above that limit, and produce produce artifacts. to avoid that you need to filter that stuff out in advance, or otherwise do something to compensate.

by comparison, taking the same sample and slowing it down is still perfectly legit, but you might lose some low end frequencies that are literally impossible for your speaker to make. the hardware itself acts as your high-pass filter (or DC filter or w/e)

if you're being lazy, one of these requires extra math and one doesn't. so starting as fast as you could possibly want and slowing it down is easier than the reverse

i was just thinking that, in the pursuit of the Lo-Fi Aesthetic, slowing it down would introduce aliasing and stretching artifacts that could make it sound just a little more Retro