this post was submitted on 17 Feb 2024
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Does anyone know of a local audio upscaler? Preferably Android based.

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[–] noodlejetski@lemm.ee 9 points 9 months ago (4 children)

you won't magically restore the parts that have been removed during compression.

[–] sabreW4K3@lemmy.tf 2 points 9 months ago (3 children)

Can AI or machine learning not do in the same way that it does with pictures?

[–] Atemu@lemmy.ml 9 points 9 months ago (2 children)

It cannot bring back lost data. It can hallucinate something that is statistically likely given the context but I'm not aware of any tool which can do that to a useful degree.

What's the context? Why can't you just get a better encode where the data isn't lost?

[–] sabreW4K3@lemmy.tf 5 points 9 months ago (1 children)

Things like old mixtapes are impossible to get better encodes of

[–] Zpiritual@lemm.ee 6 points 9 months ago

Old mixtapes and such can be noisy with hizzes, pops and such. It is possible to filter out those artefacts but thats removing stuff, just as digitally compressing audio is removing stuff. You can't create data from nowhere for digitally compressed files and you can't simply add back the hizz, noise, and pops to the mixtapes if you remove that.