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this song isn't very impressive, but at
0:50-0:54 there is an effect that makes the sample gradually go lo-fi in an 8bit sound kind of way, what might this effect be or how could i reproduce this particular sound?

Sounds like BIT-crushing!!

Yeah, it's called Bitcrushing. It's slowly raising the amount of bitcrushing.

Just google and download CMT Bitcrusher and you'll figure it out.

Bit crusher as above. Automate the wet/dry control so that it very quickly increases wet level on the sample over a very small space of time.

technically it's downsampling, a function which all bitcrusher plugins have right? because i know a bunch of distortion plugins that have stuff labeled bitcrushing which is something else entirely (camelphat for example)

Massive's bitcrusher's different too

Yeah, it's downsampling, it's more commonly called bitcrushing though I guess. I think that's actually what it is, like Bitcrushing is just a nick name for Downsampling. Because on CMT Bitcrusher, the slider that effects the amount of "crushing" it does is labeled "Downsampling".

there's a few differences that if you compare, there is bit crushing, downsampling and fold back distortion which all offer different flavors, but yea cmt is generally the go to for that classic crushing
if i can dig it up again i had a standalone app that made samples compatible with the c64 4bit sid chip and saved me having to do it via sending files via midi to my mssiah cart and then replaying on c64 and recording
gave a def diff flavor to it aka for those old enough to remember ghostbusters on the c64 vox

spot on
many thanks guys