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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 2005-02-06, 09:20 AM
vicsbitz vicsbitz is offline
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MP3 OR NOT

Hi ,i have just received this disc in a trade,and i was wondering if anyone would like to pass an opinion on the source,this was supposedly recorded on mini disc.

thanks
[IMG][/IMG]


[IMG][/IMG]
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  #2  
Old 2005-02-06, 06:56 PM
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Re: MP3 OR NOT

can you zoom in on just 2 seconds and post a screenshot, please?
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  #3  
Old 2005-02-06, 07:46 PM
vicsbitz vicsbitz is offline
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Re: MP3 OR NOT

ok mate here it is

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  #4  
Old 2005-02-06, 08:14 PM
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Re: MP3 OR NOT

ack

sorry, I meant spectral view. post something like this and I can tell better:
Attached Images
File Type: gif lzag1.gif
( 228.1 KB, 216 views)
 
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  #5  
Old 2005-02-06, 08:53 PM
vicsbitz vicsbitz is offline
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Re: MP3 OR NOT

sorry mate a bit thick [IMG][/IMG]
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  #6  
Old 2005-02-06, 09:48 PM
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Re: MP3 OR NOT

that's great... we're almost there.

can you post another 2-second spectral clip, but using CEP/Adobe Audition this time? EAC is tricky to read...
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  #7  
Old 2005-02-07, 05:06 AM
vicsbitz vicsbitz is offline
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Re: MP3 OR NOT



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  #8  
Old 2005-02-07, 05:43 AM
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Smile Re: MP3 OR NOT

Quote:
Originally Posted by vicsbitz


If it went to Mini Disc at any point, you've lost data you'll never retrieve. MDs use compression by definition. It's called ATRAC and it's much better than MP3, but it IS lossy.

Now, if there is no master recording on a lossless medium, then it would be best to first ' freeze ' the recording into a losssless format first, from your master, hopefully... then the loss will only be from your Master>lossless-format-copy generation.

Minidisc cannot be copied without generational loss... including audible artifacts like pops buzzes, dropouts... you may not notice it on the first generation or more... but it's there, lossy trading pollutes the gene pool.


I'd have to say - since you have *some* energy over 15-16kHz, I'd say this hasn't seen an MP3 compressor. BUT - being MiniDisc, it's lossy by definition.
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Last edited by paddington; 2005-02-07 at 05:53 AM.
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  #9  
Old 2005-02-07, 05:56 AM
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Re: MP3 OR NOT

that's correct...

altho MD is lossy and we all know it we do allow it on this site so long as it's the format the show was taped in. This looks like like MD to me.
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  #10  
Old 2005-02-07, 06:50 AM
vicsbitz vicsbitz is offline
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Re: MP3 OR NOT

thanks very much for the informative answers and your time

cheers

Last edited by vicsbitz; 2005-02-07 at 06:51 AM. Reason: spelling error
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  #11  
Old 2005-02-07, 12:28 PM
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Re: MP3 OR NOT

Quote:
Originally Posted by Five
that's great... we're almost there.

can you post another 2-second spectral clip, but using CEP/Adobe Audition this time? EAC is tricky to read...
Just out of curiosity, what is wrong with the tools in EAC? Also, are there any good freeware/open source spectral analysis programs out there? I don't do any actual taping or audio remastering (nor do I know anything about it!), so I don't feel the need to shell out $$$ for CEP or Audition. Thanks!

-Phil
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  #12  
Old 2005-02-07, 05:48 PM
vicsbitz vicsbitz is offline
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Re: MP3 OR NOT

Hi Phil; try this program called AUDACITY almost certain it's freeware

http://audacity.sourceforge.net/

cheers
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  #13  
Old 2005-02-07, 07:08 PM
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Re: MP3 OR NOT

Quote:
Originally Posted by irishcrazy2005
Just out of curiosity, what is wrong with the tools in EAC? Also, are there any good freeware/open source spectral analysis programs out there? I don't do any actual taping or audio remastering (nor do I know anything about it!), so I don't feel the need to shell out $$$ for CEP or Audition. Thanks!

-Phil
I got the opinion that EAC's analytical tools are unreliable for our purposes from this thread:

http://www.thetradersden.org/forums/...ead.php?t=1331

there's some links in there. for freeware the old analyfreq and audacity are the best options I know of.
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  #14  
Old 2005-02-07, 09:51 PM
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Re: MP3 OR NOT

ehrm. 1) I see nothing above 16kHz and 2) looks like mp3 to me.
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  #15  
Old 2005-02-07, 10:03 PM
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Re: MP3 OR NOT

ssamadhi, you would know better than me.

vicsbitz, can you send me a private message? I can give you my email you can send a short sample to and I can get up some clearer pics for everyone to look at.
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