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

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  #1  
Old 2007-10-21, 05:18 PM
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Question Lossy or Lossless !?!?!?!?!?!?

It's me, back again with another edition of lossy or lossless. These are all AUD recordings except for the 11-25-77 show, which is a SBD. I'm fairly sure that one is fine, but need to be totally sure.
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File Type: png gr 3-11-86.PNG
( 526.1 KB, 31 views)
 
File Type: png 11-25-77.PNG
( 540.9 KB, 24 views)
 
File Type: png 6-25-77.PNG
( 583.3 KB, 21 views)
 

Last edited by tonygx30; 2007-10-21 at 05:26 PM.
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  #2  
Old 2007-10-21, 05:31 PM
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Re: Lossy or Lossless !?!?!?!?!?!?

These all exhibit flyback noise @ 16kHz from someone's CRT during transfer... and the 11-25-77 audio is lossy digital compression, I;m pretty sure - likely mp3.

could you post 3-4 sec wide SA samples for all three, please?
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Old 2007-10-21, 10:08 PM
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Re: Lossy or Lossless !?!?!?!?!?!?

Ok, I zoomed in 3 sec on them, hopefully I did it right. I left off the 11-25-77 show because I already know it's lossy. I also added a 3rd show I got, 8-23-85.
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File Type: png 3-11-86 3sec.PNG
( 542.8 KB, 17 views)
 
File Type: png 6-25-1977 3sec.PNG
( 644.1 KB, 15 views)
 
File Type: png 8-23-85 3sec.PNG
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Old 2007-10-21, 10:56 PM
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Re: Lossy or Lossless !?!?!?!?!?!?

none of those looks good to me... I'd be curious to have a listen to a FLAC sample via rapidshare/similar of the first one (3-11-86). the others look lossy to me, too abrupt of a cutoff for any other explanation that I can think of.
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Old 2007-10-22, 08:22 AM
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Re: Lossy or Lossless !?!?!?!?!?!?

yeah, it's hard to say for sure.. they don't look right, but they aren't the epitome of mp3, either... could you upload some FLACs?
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