* "Matthew Wall" <[EMAIL PROTECTED]> on Mon, 08 May 2000
| First off dont get all bent out of shape on the compression arguement. =
| what i was curious about is from what i've read ATRAC removes sounds =
| that are not hearable by the human ear. my question is what frequency =
| does the MD stop recording at?
The problem with this question is that it is not relevant to what ATRAC
does. ATRAC will operate on the entire frequency range fed into it. At
that point, it is more a matter of amplitude than frequency.
For example, when a jet airliner flies overhead you cannot hear crickets
chirping in the grass. The sound of the crickets is there, but are masked
by the sounds of the jet. ATRAC removes the cricket sounds, leaving the
jet sounds.
Something to try: hook up your tone generator directly to your amp and see
if there actually is a difference. Because 15Hz is well below the average
person's ability to detect. ATRAC can be cranky when it comes to steady
tones. There are no sounds being masked, so what gets removed by the bit
reduction is by definition significant.
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