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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 2005-05-10, 09:17 PM
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Question Just MD - or MP3 as well?

Hey experts! I've been reading through a lot of the "is this lossy?"-posts, and the tips and tricks for detecting mp3 compression & such, and i've read about that before as well, and know a fair bit about it, but i lack the experience in detecting mp3s etc. So I would be glad if you could help me out a little.

OK, I have this show, and at first listen i suspected it being lossy, since it does indeed sound bad, and lossy. The one I traded it from had "AUD MD?" as the source, and he was unable to get contact with the guy he originally received the show from. So I had a look around, and found that it has probably at least been through a MD, quite possibly it was recorded onto one in the first place. There's a cutoff at 13 khz (or rather, it looks to me as if everything around 13 khz was abducted by aliens...), and in the SA you will see all those little blocks at the top, with "horns" :/

On the other hand: that tauanalyzer prog claims "MPEG" compression has been used (although i've read here that that prog isn't very reliable?)?

It seems to me only MD compression has been used, but what say you? Also, I tried compressing the wav to mp3 (160 kbps), and back to wav, which made the SA become a lot smoother (ie. the "horns" disappeared, and overall it looked more blurry), and in the FA there was even more loss around 13 khz, and above 17 khz...

Attached are some screenshots (FA & SA, one 2 sec) I hope will be enough to determine the compression used, or formulate a theory at least.

Thanks
Attached Images
File Type: jpg ce_sa_2sec.jpg
( 253.1 KB, 66 views)
 
File Type: jpg ce_fa.jpg
( 119.1 KB, 46 views)
 
File Type: jpg ce_fa_2sec.jpg
( 138.1 KB, 49 views)
 
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  #2  
Old 2005-05-11, 12:58 AM
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Re: Just MD - or MP3 as well?

this looks like just md to me. what show is this?
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  #3  
Old 2005-05-11, 09:16 AM
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Re: Just MD - or MP3 as well?

Quote:
Originally Posted by Five
this looks like just md to me.
Yep, what he said.


This TAUsomethingortheother is not to be trusted.
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Old 2005-05-11, 09:18 AM
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darkstarjunkie darkstarjunkie is offline
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Re: Just MD - or MP3 as well?

a norwegian band called Seigmen, they started out as a kind of heavy dark rock band, but this show is from the end of their career, when they had incorporated a lot of electronic sounds into their music...

it's probably recorded on MD in the first place, since it's from a small venue in 1997, and the MD is/was the most popular device for taping shows here in norway, at least during the 90s.
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