Home Propeller Head Plaza

Technical and scientific discussion of amps, cables and other topics.

Wow, tough crowd.




As Wikipedia (and the signal processing textbook I have lying around - Signal Processing and Linear Systems by Lathi) confirm, a bandlimited signal cannot also be timelimited, and vice versa. Therefore, the Fourier spectrum of a finitely long CD track will, in fact, have nonzero energy at 30khz.

I hope Tony gets the joke. ;)

And now, as a parting shot, I give you a CD track of Ligeti piano music upsampled to 96khz and plotted in an amplitude spectrum, 1M samples, *no windowing*. BAM!


This post is made possible by the generous support of people like you and our sponsors:
  Kimber Kable  


Follow Ups Full Thread
Follow Ups

FAQ

Post a Message!

Forgot Password?
Moniker (Username):
Password (Optional):
  Remember my Moniker & Password  (What's this?)    Eat Me
E-Mail (Optional):
Subject:
Message:   (Posts are subject to Content Rules)
Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:  Automagically notify you when someone responds.