open source bandwidth extrapolation

DSP, Plug-in and Host development discussion.
Mr Entertainment
12208 posts since 30 Apr, 2002 from i might peeramid

Post Sun Feb 21, 2021 2:31 pm

i haven't kept up with what people are doing for quite some time. my search term guesses and product description searches missed so let's ask.

what's going on with consumer awareness and expectations for bandwidth extension in sampling? eg. the lack of high frequencies when sample pitch is lowered. method doesn't seem to be an advertised function of samplers. one would guess sota products use some proprietary neural net already, but maybe not at all.

and if not, it seems like some parametric AI function would be worth pushing.
you come and go, you come and go. amitabha neither a follower nor a leader be tagore "where roads are made i lose my way" where there is certainty, consideration is absent.

Mr Entertainment

Topic Starter

12208 posts since 30 Apr, 2002 from i might peeramid

Post Sun Feb 21, 2021 4:40 pm

LPC or other autoregression models i suppose
http://paulbourke.net/miscellaneous/ar/

more for the creative purpose of playing spectrally rich samples several octaves lower and procedural timbre generation.
you come and go, you come and go. amitabha neither a follower nor a leader be tagore "where roads are made i lose my way" where there is certainty, consideration is absent.

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KVRian
865 posts since 2 Jul, 2018

Post Mon Feb 22, 2021 11:08 pm

An exciter does such things. However this doesn't work well with any kind of material.
You also need to consider the spectral slope of the content and the harmonic content.
Tone2 Audiosoftware https://www.tone2.com

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