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[edit] The Power of Thy Sword
The spectrum analysis of several copies of the song
The Power of Thy Sword shows Vorbis and other lossy audio codecs discarding
masked frequencies above ~18khz.
This spectrogram is not a good illustration of lossy compression. Another editor removed it previously. I have removed it again. The spectrograms show that Vorbis removes extreme high frequencies. It does so to avoid allocating any bits to reproducing sounds that most people are unable to hear. I beleive this is across-the-board filtering is only done with specific encode settings. Auditory masking is altogether a different process. --Kvng (talk) 17:54, 16 May 2011 (UTC) Insert non-formatted text here
To-do list for Vorbis:
