|this is where SOME info is worse than NO info.|
dude think about it.
u have a wave at 1/2 the sample frequency. think about it like connect-the-dots.
the only ones u can plot are the max(positive) and min(negative) points of the wave. NOW connect the dots and what do u have. thats right a sawtooth wave. even if the original was a sine.
but at least u have the frequency. forget about phase what about shape or tone?
even if u sampled at a frequency high enough to give u three or even 4 points to connect, its STILL approximate, very far from the shape of the original and certainly not "all the information of the original signal".
On Dec 20, 2005, at 1:53 AM, Bill Fox wrote: