In article ,
"Arny Krueger" wrote:
"Mats Peterson" wrote in message
...
MP3 is ok for content with severely cropped frequency range, like old
time radio, or otherwise if using sub-optimal equipment such as a
portable player and el cheapo earbuds. But I always use lossless (CD
or FLAC) at home with the hi-fi system.
I find that it is helpful to consider only the subjective impressions of
people who:
(1) Compare MP3s directly to the .wav files they are made from
(2) Have the means to make this comparison level-matched, time-synched, and
double blind
(3) Hear differences in a statistically significant percentage of the the
comparisons
(2) Turns out to be very easy using free software tools available for
download from multiple sources.
If one does that, concerns about audible differences are generally relate to
issues other than high frequencies.
Frequency response is generally not the issue here anyway. The issue is
sounds generated by the compression and expanding action that is NOT
part of the music and therefore can bee looked at as noise/distortion.
These sounds are put there by the compression algorithm, and with
certain kinds of music are easily heard.
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