Impact of data compression (mp3 & wma) on frequency content
I did some screenshots of the spectral charts of a couple pieces of music to show what gets cut out (on a gross level) when you compress music. It's pretty interesting to see side-by-sides of a few different files.
http://www.bradjudy.com/audioblog/20...uency-content/
Has the original and six different compressions for pieces of two different songs. I had previously played with using Audition to selectively cut out high frequencies to see how it sounded and the different was audible through my ER-6s once I got down into the 15kHz range.
It just occured to me that I should add the relative file sizes for reference. I'll do that.