• Nomecks@lemmy.ca
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      3 days ago

      Ultra audio and video compression for dialup internet. 250x compression with predictable results. You could speed up/slow down audio without changing the pitch, which was kind of cool in 1995.

      • Eldritch@piefed.world
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        3 days ago

        Oh the adpcm codec used with a lot of the old POTS. I was thinking you were talking a more like for like. Image to image. Having studied telcom in college in the mid 90s. Yes I know that vox 😀