mp4's
Out of context: Reply #34
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- mbr0
You can tell the difference. I can hear the difference of compressed audio vs. non compressed on a quality system (I doubt you'll notice much on a computer's speakers). My father has some Martin Logan's that are exceptional, you really can hear the difference in recordings (he's got some recordings done from the master recordings).
The audible range for the human hear is 20hz to 20,000 hz, I believe this is what MP3s use to eliminate 'unheard' sound. I know Minidiscs to this. A regular recording will have information above and below this range that is not 'heard', but it does make a difference. By eliminating the data above and below, you can make a smaller file size of 'almost' the same frequency.
That's why you look at the frequency range of speakers. Those Martin Logans, while over 6' tall electrostatics with a 12" subwoofer, cannot reach down low enough to cover all the frequencies. There is a separate Velodyne 18" sub that takes care of the lowest frequencies.