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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 2008-03-26, 04:39 PM
quadrophenia quadrophenia is offline
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Lossy?

Thanks for your help.
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  #2  
Old 2008-03-26, 04:50 PM
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Re: Lossy?

hard to say.. it doesn't show the stark blocks you usually see with MP3, though the frequencies are rolled off (or seem to be). Could just be a recording from freq-limited mics, etc.


more info about it or an audio clip?
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  #3  
Old 2008-03-26, 05:31 PM
quadrophenia quadrophenia is offline
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Re: Lossy?

The original uploader says this is lossless sourced from soundboard. I want to upload it here. Short sound sample:

http://rapidshare.com/files/102615292/102.flac.html
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  #4  
Old 2008-03-26, 09:00 PM
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Re: Lossy?

ok.. this is a bit tough. It's obvious that some of the frquencies are missing. I do not think a SBD recording wuld have that problem - unless the SBD's master EQ was pulled down and rolling them off on purpose for PA reasons, etc...

I do not see the obvious blocky artifacts you normally see in MP3. Or AC3, for that matter (which is usually still blocky, just not as much as MP3).

Here is a 100% lossless audio slice from a studio album, 1 sec span:





and here is your audio:





The texture is very similar. It isn't as clean, but it is a live recording against a studio recording.


I really can't say if this is lossy or not. I do not think it is - but what happened to the high frequencies?

I'm going to get another staff member to come hava a look at this and see what he thinks.
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  #5  
Old 2008-03-27, 01:15 PM
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Re: Lossy?

I agree no evidence its lossy but the cutoff is supicious... viewed in black and white it comes up looking like 32kHz DAT to me. So its fine to trade imo.
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  #6  
Old 2008-03-27, 02:46 PM
quadrophenia quadrophenia is offline
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Re: Lossy?

Maybe it's noise reduced?

Thanks for helping.
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  #7  
Old 2008-04-01, 12:17 AM
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Re: Lossy?

yeah also could be nr (?) ... not certain

you're welcome
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  #8  
Old 2008-04-13, 01:47 AM
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Re: Lossy?

How about this one?
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  #9  
Old 2008-04-13, 01:58 AM
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Re: Lossy?

what about this guy? looks kinda...bad.
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  #10  
Old 2008-04-13, 10:17 PM
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Re: Lossy?

I can't even tell what I'm looking at from those, sorry.
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