A comparison of various lossy compression formats at highest quality
August 24th, 2007 by 
ScottyP
This was to settle an argument, but you might find it useful
Click on the thumbnail for the full resolution version.
The verdict: OGG wins again. at 1.0 quality, it is roughly 1/3 the original file size, yet maintains pretty much all the spectral information intact. I used default settings for everything, with no special options, and always highest quality settings. I included 128 kbit MP3 as a comparison. The vertical runs from 0hz to 22khz. Except for the 128kbit mp3, most of the audio information missing is not in the human audible range (it is mostly past 18khz).
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4 Comments »
August 24th, 2007 at 7:53 pm
What do the x and y axis represent?
August 29th, 2007 at 6:43 pm
time on the horizontal, frequency response on the vertical.
October 20th, 2007 at 12:50 pm
what about flac?
October 23rd, 2007 at 10:28 am
.FLAC remains pretty much lossless, it’s the way to go for digital storage of CDs. Though certainly not for streaming or distributing, heh.
These results don’t surprise me one bit really. More companies should use .OGG these days, we live in the megacorp age and more people and companies should reject the patents on the MP3 format. It’s long been superseded.