The Traders' Den  

  The Traders' Den > Where we go to learn ..... > Technobabble > Lossy or Lossless?
 

Notices

Lossy or Lossless? Please use this forum to post spectral and frequency analysis posts about shows you have your doubts about.

Reply
 
Thread Tools
  #1  
Old 2006-01-15, 04:59 AM
taygan taygan is offline
2.65 GB/2.89 GB/1.09
 
Join Date: Dec 2005
Death Star Groove AND mp3?

Check this one out. I'm guessing a very bad resmaple (from what??) and then probably mp3? The 16kHz line looks blocky, but not like most of the other mp3s I've been looking at. It's just plain ugly.



Reply With Quote Reply with Nested Quotes
  #2  
Old 2006-01-15, 01:13 PM
Five's Avatar
Five Five is offline
TTD Staff
186.65 GB/588.32 GB/3.15
 
Join Date: Oct 2004
Location: Canada
Re: Death Star Groove AND mp3?

looks like 32kHz DAT > SB Live! imo

not too pretty, but I've seen worse!
__________________
Checksums Demystified EAC Config MakeTorrent WinAmp Config

Modern social theory casts a highly skeptical eye on any declaration that a group of persons is without conflict, and insists, on the contrary, that conflict is natural to groups, and even more, is essential to them. -Patrick Henry
Reply With Quote Reply with Nested Quotes
  #3  
Old 2006-01-15, 01:58 PM
ssamadhi97's Avatar
ssamadhi97 ssamadhi97 is offline
meow.
87.81 GB/69.41 GB/0.79
 
Join Date: Nov 2004
Location: Old Europe
Re: Death Star Groove AND mp3?

Haha, oh hell no.

Random 22.05kHz source with cutoff at 10kHz (maybe an mp3 already?) > crappy resampling to 44.1kHz > mp3 or similar lossy encoding

How the heck did that happen? Webcast maybe? I guess it sounds as ugly as it looks, too...
Reply With Quote Reply with Nested Quotes
  #4  
Old 2006-01-15, 02:30 PM
Five's Avatar
Five Five is offline
TTD Staff
186.65 GB/588.32 GB/3.15
 
Join Date: Oct 2004
Location: Canada
Re: Death Star Groove AND mp3?

I disagree... what encoder settings give that kind of a SA signature?

is it possible to get a yousendit sample of this audio? 10-20 seconds? I'd like to hear if this has that lossy sslur to it.

mp3 sources normally have a signature like this (right?):
Attached Images
File Type: gif mp3sourc2sec.gif
( 122.8 KB, 11 views)
 
File Type: gif mp3sourcefull.gif
( 138.8 KB, 10 views)
 
__________________
Checksums Demystified EAC Config MakeTorrent WinAmp Config

Modern social theory casts a highly skeptical eye on any declaration that a group of persons is without conflict, and insists, on the contrary, that conflict is natural to groups, and even more, is essential to them. -Patrick Henry
Reply With Quote Reply with Nested Quotes
  #5  
Old 2006-01-15, 05:21 PM
taygan taygan is offline
2.65 GB/2.89 GB/1.09
 
Join Date: Dec 2005
Re: Death Star Groove AND mp3?

Yes, it does have a lot of sound artifacts, definitely a web-cast sound.

here's the sample:

http://s6.yousendit.com/d.aspx?id=1V...31B99WJG4R310D
Reply With Quote Reply with Nested Quotes
  #6  
Old 2006-01-15, 05:56 PM
Five's Avatar
Five Five is offline
TTD Staff
186.65 GB/588.32 GB/3.15
 
Join Date: Oct 2004
Location: Canada
Re: Death Star Groove AND mp3?

I was wrong... this is lossy as f*ck. I can see it & hear it now.
Attached Images
File Type: gif manu-sa1.gif
( 119.8 KB, 36 views)
 
__________________
Checksums Demystified EAC Config MakeTorrent WinAmp Config

Modern social theory casts a highly skeptical eye on any declaration that a group of persons is without conflict, and insists, on the contrary, that conflict is natural to groups, and even more, is essential to them. -Patrick Henry
Reply With Quote Reply with Nested Quotes
  #7  
Old 2006-01-16, 09:41 AM
ssamadhi97's Avatar
ssamadhi97 ssamadhi97 is offline
meow.
87.81 GB/69.41 GB/0.79
 
Join Date: Nov 2004
Location: Old Europe
Re: Death Star Groove AND mp3?

Quote:
Originally Posted by Five
I disagree... what encoder settings give that kind of a SA signature?
Pretty much what I described... low bitrate encode of a 22050Hz mp3 may introduce a 10kHz lowpass for example; then mediocre resampling adds the "flipped" content above 11025Hz (and leaves the black hole between 10kHz and 12kHz); and finally another round of lossy perceptual encoding introduces the "skyline" around 16kHz.


PS: Five, I hope my "oh hell no" above didn't offend you in any way. I was actually referring to the SA of this track there, but upon rereading that post I noticed that it's very easy to misunderstand.
Reply With Quote Reply with Nested Quotes
  #8  
Old 2006-01-16, 01:38 PM
Five's Avatar
Five Five is offline
TTD Staff
186.65 GB/588.32 GB/3.15
 
Join Date: Oct 2004
Location: Canada
Re: Death Star Groove AND mp3?

no harm

good eye!
__________________
Checksums Demystified EAC Config MakeTorrent WinAmp Config

Modern social theory casts a highly skeptical eye on any declaration that a group of persons is without conflict, and insists, on the contrary, that conflict is natural to groups, and even more, is essential to them. -Patrick Henry
Reply With Quote Reply with Nested Quotes
Reply

The Traders' Den > Where we go to learn ..... > Technobabble > Lossy or Lossless?

Similar Threads
Thread Forum Replies Last Post
Death Groove, but is it lossy?? - taygan Lossy or Lossless? 1 2007-02-04 02:07 AM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forums


All times are GMT -5. The time now is 09:52 AM.


Powered by: vBulletin, Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright ©2004 - , TheTradersDen.org - All Rights Reserved - Hosted at QuickPacket
no new posts