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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 2005-03-29, 09:19 AM
spontabmark
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is this MiniDisc?

sorry to ask about another show i'm understanding most things now. to me this looked MD, mainly from the FA result. am i right? is that what MD looks like on FA? thanks again
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  #2  
Old 2005-03-29, 11:27 AM
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Re: is this MiniDisc?

feel free to start threads like this. the topic of the signature characteristics of MD needs much more discussion.

Going by the SA this certainly resembles MD so far as I can tell. This would be a digital transfer (as evidenced by the almost pure black showing in the higher frequencies). I would love to see a couple more 2-second screencaps like this one from other parts of the show.

There's three quality settings for MD recording, and they have slightly different cutoffs.

When I get a chance I'll dig up some known MD sources I have at home and perhaps we can get to the bottom of this.
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  #3  
Old 2005-03-29, 11:54 AM
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Re: is this MiniDisc?

heres 2nd and last track (1st was 13th i think)
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File Type: jpg track20SA.JPG
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  #4  
Old 2005-03-29, 12:05 PM
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Re: is this MiniDisc?

really low levels on this recording.

If you'd like to send me a 5 or 10 second sample of this, I'd love to give a listen as well. drop me a pm.

If anybody else has opinions on this, please post away.
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  #5  
Old 2005-03-29, 12:30 PM
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Re: is this MiniDisc?

Quote:
Originally Posted by Five
really low levels on this recording.

If you'd like to send me a 5 or 10 second sample of this, I'd love to give a listen as well. drop me a pm.

If anybody else has opinions on this, please post away.
lol i haven't even listened to it yet as was part of big trade, but yeah i was told before hand its a quiet source

i'll PM
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  #6  
Old 2005-03-29, 02:40 PM
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Re: is this MiniDisc?

Why anyone would record to MD using this narrow a bandwidth doesn't make sense to me. A 12khz brickwall is just insane.

Also, I think you see a more natural falloff in the frequency response from MD, not anything like the brickwall you see in MP3.
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  #7  
Old 2005-03-30, 11:46 AM
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Re: is this MiniDisc?

Okay, I got an 8-second sample of this from spontabmark. Here's what it looks like zoomed in to 2 seconds SA, zoomed out to 8 seconds SA, and FA by Audacity:
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File Type: gif spontabmark2sec.gif
( 210.6 KB, 22 views)
 
File Type: gif spontabmark8sec.gif
( 210.7 KB, 19 views)
 
File Type: gif spontabmark_fa.gif
( 10.7 KB, 25 views)
 
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  #8  
Old 2005-03-30, 11:50 AM
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Re: is this MiniDisc?

After speding some time with this, I've got to agree with wazoo2u. Upon closer examination, this doesn't resemble any MD source I've ever seen. It's lower quality and lossy as well.

For comparison purposes, here's some screencaps from known MD sources.

Blue Rodeo 2005-01-14:
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File Type: gif br2005-01-14d2t15_2sec.gif
( 212.6 KB, 29 views)
 
File Type: gif br2005-01-14d2t15_8sec.gif
( 221.3 KB, 22 views)
 
File Type: gif br2005-01-14d2t15_fa.gif
( 10.9 KB, 20 views)
 
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  #9  
Old 2005-03-30, 11:51 AM
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Re: is this MiniDisc?

Bush 2002-07-05:
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( 218.2 KB, 17 views)
 
File Type: gif bush2002-07-05d1t08_8sec.gif
( 218.1 KB, 12 views)
 
File Type: gif bush2002-07-05d1t08_fa.gif
( 10.7 KB, 15 views)
 
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  #10  
Old 2005-03-30, 11:54 AM
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Re: is this MiniDisc?

Judas Priest 2004-08-18:
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File Type: gif jp2004-08-18d1t07_8sec.gif
( 215.8 KB, 12 views)
 
File Type: gif jp2004-08-18d1t07_fa.gif
( 10.5 KB, 10 views)
 
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  #11  
Old 2005-03-30, 12:34 PM
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Re: is this MiniDisc?

thanks. hmm well its a recent show so i'll ask around about lineage, i'll post some analysis shots of two megadeth london shows from thsi year i know are minidisc aswell
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  #12  
Old 2005-03-30, 12:47 PM
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Re: is this MiniDisc?

Megadeth 2005-02-08 minidisc
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File Type: jpg md8thspec.JPG
( 71.0 KB, 10 views)
 
File Type: jpg md8thzoomspec.JPG
( 55.3 KB, 10 views)
 
File Type: jpg md8thFA.JPG
( 34.7 KB, 10 views)
 
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  #13  
Old 2005-03-30, 12:47 PM
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Re: is this MiniDisc?

FA in audacity
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  #14  
Old 2005-03-30, 12:52 PM
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Re: is this MiniDisc?

The Bush show I made screencaps from was recorded in the highest quality setting possible for MD. I wish everyone would record in this mode!

please do bring on the MD screenshots.
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  #15  
Old 2005-03-30, 02:01 PM
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Re: is this MiniDisc?

the pics you just posted look much more like minidisc than the ones in the 1st post... there is much more frequency response in the highs, as would be expected. Also, there's that certain "shape" to the lego when zoomed to 2 seconds.
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