1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.

    Dismiss Notice

The importance of Components?

Discussion in 'Sound Science' started by gregorio, Mar 5, 2009.
First
 
Back
1 2 3 4 5 6 7 8
  1. Publius
    Quote:

    Originally Posted by gregorio /img/forum/go_quote.gif
    BTW, when the reconstruction is done, it's a little more sophisticated than just drawing a line between the dots (sampling points). The values between the sampling points are interpolated with some fancy maths which apply dither algorithms. This results in a perfectly linear (without error) recreation of the original waveform, plus a little un-correlated noise down at the LSB level.



    There isn't anything particularly sophisticated about the reconstruction - CoolEdit just does spline interpolation IIRC, but a more technically accurate solution is sinc interpolation. They're both easy-peasy. Dither is rarely if ever used.

    BTW, I have been made aware that some modern, inexpensive sound cards are out there whose DACs, in fact, lack a reconstruction filter. Doesn't really affect this conversation much but it's worth noting that such beasts do exist and require slightly more work to dismiss out of hand.
     
First
 
Back
1 2 3 4 5 6 7 8

Share This Page