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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 2005-08-07, 07:44 PM
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a few new ones...

alright experts...here's two more shows i'm curious about

SHOW #1
this one has a band ~15-16kHZ...? radio broadcast?
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  #2  
Old 2005-08-07, 07:50 PM
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Re: a few new ones...

Show #2
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  #3  
Old 2005-08-08, 07:59 AM
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Re: a few new ones...

As for the first one, it has no serious lowpass, so I'd say it's likely pre-broadcast. I've seen prefm material that looks like this, too.

Second one looks like post-broadcast and might or might not be lossy sourced. Something like "mp2 or not > fm/tv (> ana?) > digi" for example. Can't tell at all at this resolution, please try increasing the window size for the spectral view from 64 to 256
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Old 2005-08-08, 09:50 AM
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Re: a few new ones...

werd, forgot to change the settings after reinstalling...here's show #2's SAs
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  #5  
Old 2005-08-08, 06:39 PM
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Re: a few new ones...

the "bs1983-11-04" (sabbath?) looks like 1) an FM (red stripe aka carrier) and 2) like it has been speed-corrected (perfect black at the top). Doesn't look like prebroadcast since it has the stripe, but ssamadhi97 says he's seen them look like this before... I can't say I have. Can't really say much more, would like to see a better SA zoomed to 2 seconds. if you wanna yousendit a clip to five at ttd dot com feel free.

"ther93-04-03" I'm not sure about... could be lossy, could be 32k DAT likewise, I would love to check a sample of this that I could zoom around on and listen to.
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Old 2005-08-09, 07:16 AM
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Re: a few new ones...

Quote:
Originally Posted by Five
the "bs1983-11-04" (sabbath?) looks like 1) an FM (red stripe aka carrier) and 2) like it has been speed-corrected (perfect black at the top). Doesn't look like prebroadcast since it has the stripe, but ssamadhi97 says he's seen them look like this before... I can't say I have.
Toad The Wet Sprocket 1990-04-11 on archive.org for example.

And this bs show looks like it still has some signal going on above 16kHz, that's what makes me think it might be pre-broadcast.

btw iirc ~16kHz tone indicates tv, not fm.
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Old 2005-08-10, 09:13 AM
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Re: a few new ones...

thanks for the help ssamadhi and five
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