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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 2011-09-15, 01:05 PM
Wolf Wolf is offline
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is this lossy

if so, then how did you detect it's lossy, please let me know so I can get better by detecting lossy sources next time:


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  #2  
Old 2011-09-16, 12:07 AM
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Re: is this lossy

That's not very good spectral software, but you can tell it's loss by the blocky nature of the spectral. I've.seen a lot.of.spectrals in my time.
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Old 2011-12-09, 03:08 AM
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Re: is this lossy

Here's a screenshot of a file extracted from an Empress Valley Supreme Disc (EVSD) track:



This is really bad. You can see that the audio frequency takes a dive @ around 8khz. Look @ the numbers on the side of the spectral chart, as well as the graph. If you look @ the spectral (on my image), you'll note that the frequency doesn't even hit 10khz. The graph shows a drop @ 8khz. Looks like someone scribbled in the spectral... Lol...

On your image, the frequencies are cut @ around 15khz, which is typical for mp3 compression.
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Old 2011-12-10, 01:52 AM
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Re: is this lossy

Quote:
Originally Posted by P A U L View Post


On your image, the frequencies are cut @ around 15khz, which is typical for mp3 compression...........
.........but you will find more often than not the cut-off will be @ 16kHz.
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