Home Digital Drive

Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it.

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ Digital Drive ]
[ Alert Moderator ]

RE: All FIR filters are fatally flawed.

Get yourself a good text book on Digital Signal Processing and study it. After you have done so, then you may have a good idea of what is wrong with your post. A reference is listed below, but you may need to learn some math before you can understand it.

I will point out one thing. If the signal were 7 octaves below the Nyquist frequency, then there would be 128 cycles of ringing for each cycle of your "signal". One cycle of your signal occupies about 50 horizontal pixels in your photos. So any ringing from a filter that cuts off near the Nyquist frequency would not be visible in your pictures.

Tony Lauck

"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar

This post is made possible by the generous support of people like you and our sponsors:
  Atma-Sphere Music Systems, Inc.  

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.

[ Top Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]