See... I don't want to be rude, so excuse my being blunt. I really don't think that Technobabble is meant to hold endless upon endless requests for frequency analysis. There are a number of threads devoted to the fine points. Five has gathered them HERE:
http://www.thetradersden.org/forums/...ead.php?t=4288
It would be really cool if everyone could AT A MINIMUM, make an effort to determine what they have to start. If you get stuck, or have no clue at all after reading the educational material TTD offers... then I think that you'll find a bunch of help and opinions here.
You've posted 2 Frequency Response curves that tell someone very little about the audio content. You need to analyze the waveform in SPECTRAL ANALYSIS view in order to see the effects of lossy coding. Again.. check out Five's consolidated thread, and then report on the SPECTRAL's that you post.
Thanks...
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