• shmerl 3 hours ago |
    A classic. I wish Xiph developed Daala into a fully functional video codec.
  • 112233 22 minutes ago |
    This is a very infuential video. I often see it referenced when digital audio gets explained.

    It is also very insiduously misleading in a way that is hard to fault it for.

    That "band limited signal" that uniquely satisfies Niquist theorem? That is an infinite, periodic signal.

    No finite (e. g. a song), aperiodic signal can be band limited. That includes any signal with transients.

    Well, how big is the difference? How much overhead/error/lookahead is needed to approach the Niquist result? It is never mentioned by people referring to this theorem when talking about audio signal sampling!

    And I wish it was mentioned and explained.