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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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Old 2011-12-19, 05:05 AM
vold911 vold911 is offline
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Join Date: Oct 2011
another lossy/loss request

this is supposedly from a PREFM version of a show from 1978 that was later broadcasted
and yes i see the line just below 16k but theres also a secondary segment between 16k and 19k and i cant see obvious lego skyline

zoomed in spectral from cep

same with this one. taken from a different show. 1971. no obvious lego skyline and the dark part starts very low, though it seems more of a natural decline than abrupt change
any natural reason why a recording would seem to be so absent in the higher parts?

is this lossy?

this is from an audience recorded show in 1986. 2 versions. 1st lossless and second lossy?(distinct lego skyline)

and version 2 (lossy one?)

Last edited by vold911; 2011-12-19 at 05:30 AM.
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Old 2011-12-19, 10:04 AM
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co9ol co9ol is offline
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Join Date: Nov 2006
Location: GTA Ontario, Canada
Re: another lossy/loss request

don't know for sure about the first three, but that last one is lossy.
The second spectral don't look lossy, but it is missing a fair bit of top end.
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Old 2011-12-19, 12:00 PM
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rspencer rspencer is offline
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Re: another lossy/loss request

Microphones may have had an upper range only up to 16K. Not very uncommon, some mini-microphones being used today top out at 16-18K.
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Old 2012-01-26, 12:01 AM
bertrand bertrand is offline
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Re: another lossy/loss request

First and last look bad, other two hard to tell without better info.
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The Traders' Den > Where we go to learn ..... > Technobabble > Lossy or Lossless?

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