On Sun, 16 Mar 2008 23:34:19 -0400, Marty wrote:

Larry wrote:
Marty wrote in
:

Larry, at what bit rate do you encode your MP3s?



Whatever bit rate they're in when I download them from
alt.binaries.sounds.mp3.(many genres here) off usenet. Tonight I'm
stripping alt.binaries.sounds.mp3.jazz for a while.

Most are 128Kbps, but sometimes they go crazy with variable bit rates far
above that. As the bit rate for the CDs was 44.1K to begin with, it's all
over kill above 64Kbps, anyways. Human ears aren't near that good....no
matter what the hypers say. Sceptics only need see an audiologist to get
their own personal bandwidth tests to confirm it....

FLAC, while really cool, is crazy.



Gawd almighty Larry, your ears must really suck, you can use whatever
piece of crap speakers you like. CDs are 44.1Ksamples/sec, usually at
16 bits per sample, corresponds to 1.044Mb/s. Your 128Kbs sample, even
at 8 bits per sample corresponds to 8ksamples for each channel, Nyquist
theorem tells us that the highest frequency that will be recorded with
this is a mere 4Khz.

No cigar :-( Nyquist theorem not applicable in this way to non-linear
processes such as compressed audio signals, particularly lossy
perceptual audio coding.
http://en.wikipedia.org/wiki/Perceptual_Audio_Coding


If you can't hear the problem with this, either
your hearing is seriously impaired or your reproduction system is
seriously substandard. I occasionally download stuff from
alt.binaries.sounds.mp3.xxx, but I won't bother with anything less than
256kbs, even they are not great. FLAC, is not only cool, but if one has
a decent sound system and decent ears, the only way to go.

I've yet to hear a blue tooth system worth the trouble, for music anyway.

Cheers
Marty