DCO's, Anti-Aliasing, and Filters

[Rob]

Brian Towles wrote:
> 
> I been reading this thread for a while, but now I'm moved to words ... ;)
> 
> Rob wrote:
> 
> > ANY and ALL digital signals have aliasing...There is no way around it.
> > This is because between the samples, or dots that represent the
> > waveform, ANYTHING can happen, and we would never know about it from the
> > digital recording. This is really where aliasing occurs. Its about the
> > space between the dots.
> >
> > We say that this is a straight line, but more often, it is not. The
> > natural curve of the original analog signal is gone.
> >
Mind you, I ignored the nyquist theorem on purpose when coming up with
this analogy.. because it gives you more of a baseline to go off of and
doesnt lead you into the false thinking that the Nyquist theory will
ALWAYS work, because sometimes it doesnt... For tech types, this can be
learned the hard way.. like I learned, which gave me to forget about the
Nyquist theory, cuz sometimes things work the way they are supposed to,
and sometimes they don't, no matter how closely they follow theory..
Rob