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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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  #16  
Old 2005-10-07, 05:27 PM
alchemy71085
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Re: FM compression or .mp3 ?

Gee thanks for look into this...

Here is a sample from Money for Nothing. That was the original song I sent the screenshots in of.



Quote:
Originally Posted by ffooky
That makes the difference between the screenshots one and the sample even wierder. Any chance of a sample of the first track ?
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  #17  
Old 2005-10-07, 06:33 PM
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Re: FM compression or .mp3 ?

Hi guys.

I think what he has here is FM broadcast, with the tape possibly running slow during playback. FM stereo pilot is 19kHz and this is lower, so I'm thinking the playback is slowed, resulting in a lower freq?

The odd thing is, FM's high range is 15kHz (unless it's IBOC digital "HD Radio" which is 20-20k) and this cuts off mostly at 15kHz... so the slower tape thing doesn't make any sense there.
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  #18  
Old 2005-10-07, 06:42 PM
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Re: FM compression or .mp3 ?

Quote:
Originally Posted by alchemy71085
Gee thanks for look into this...

Here is a sample from Money for Nothing. That was the original song I sent the screenshots in of.
Well that looks exactly the same as the other sample but, in Audacity at least, it looks nothing like the original screenshots, though there is a barely perceptible spike at 17KHz. The differences between the way analyses appear in the different programs really does seem terribly confusing.
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  #19  
Old 2005-10-07, 07:22 PM
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Re: FM compression or .mp3 ?

Quote:
Originally Posted by alchemy71085
Gee thanks for look into this...

Here is a sample from Money for Nothing. That was the original song I sent the screenshots in of.
You sure you didn't mess something up when initially posting pics? The clips you made available are definitely from a completely different source than the pics in your original post.
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  #20  
Old 2005-10-07, 10:26 PM
alchemy71085
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Re: FM compression or .mp3 ?

Nope, I'm positive...it's all from the same thing. I took the two spectral views with Adobe Audition. The first shots at the beginning of this thread are from MFN, and the samples are the samples as marked.

Quote:
Originally Posted by ssamadhi97
You sure you didn't mess something up when initially posting pics? The clips you made available are definitely from a completely different source than the pics in your original post.
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