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Wolf
2011-09-15, 01:05 PM
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:

http://img339.imageshack.us/img339/2896/96445238.th.png (http://img339.imageshack.us/i/96445238.png/)
http://img402.imageshack.us/img402/4290/98326698.th.png (http://img402.imageshack.us/i/98326698.png/)

dcbullet
2011-09-16, 12:07 AM
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.

P A U L
2011-12-09, 03:08 AM
Here's a screenshot of a file extracted from an Empress Valley Supreme Disc (EVSD) track:

http://i529.photobucket.com/albums/dd340/pariht/th_empressvalleycd.png (http://i529.photobucket.com/albums/dd340/pariht/empressvalleycd.png)

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

On your image, the frequencies are cut @<hidden> around 15khz, which is typical for mp3 compression.

tonebloke
2011-12-10, 01:52 AM
On your image, the frequencies are cut @<hidden> around 15khz, which is typical for mp3 compression...........

.........but you will find more often than not the cut-off will be @<hidden> 16kHz. :wave: