Since downloading and listening to various MP3 files from the net over
the last 2-3 years, I can say that I have 2 complaints about their quality:

1) Sometimes, and I may have only imagined this, the pitch seems off. I
don't know why but I understand that the actual physical (and
psycho-acoustical) understanding of pitch is not complete. Since MP3
compression is a lossy process, perhaps information which a human being can
use to determine pitch is being omitted in the encoding process.

2) Stereo imaging is poor or non-existent. I have listened to MP3's through
headphones and speaker setups. Stereo information, which essentially
consists of the temporal relationships that exist between the signals in the
left and right channels of the sound, and produces a sense of spaciousness
and reverberation, seems to be totally missing!

If you agree with either of the points that I've made, I'd like to know
to whom should we address these concerns? No doubt, the authors of these
encoding processes are interested in any deficiencies that these standards
have.



Here's looking at you kid,
John Leonard

(Mr./ Mrs. Fictitious) "John Leonard" <jleonard2.butnospam@si.rr.com>
wrote in news:QprKa.6428$DF1.2496412@twister.nyc.rr.com:

downloading it is free, so chill out!!!!!!!!!!!!!!

there are lots of lousy copy out there.

for HIFI products with a warranty go 2 sites such as
amazon.com
cdnow.com



c.u.

Hey "PMS Chick" (I doubt that's your *real* name), "blah" is spelled
B-L-A-H. I'm not saying that these probs occur because of "lousy copy". I
think that they are the result of limitations in the MP3 standard. If
they're corrected, which can only occur when we complain, we will all
benefit.

Okay!!!!!!!!

So, chill out!!!!

John Leonard,
Myself,
Yours Truly


"PMS chick" <ngpetra-mue@gmx.de> wrote in message
news:Xns93A61E6288DC41x9s87q@130.133.1.4...

(Mr./ Mrs. Fictitious) CQ <cappynospamcue@yahoo.com> wrote in
news:MPG.19641bd73fc1b4d1989732@news.cis.dfn.de:


CQ thanks for sticking up for me.
Even better for having a sense of humor.
Who's to say that "John Leonard" is who he claims to be.


Well what can I say, I'm blond, and I didn't think it was necessary to
run a fun line through the spellchecker.


Currently playing:
Que bonita Chaparrita (Los Relampagos del Norte)

(Mr./ Mrs. Fictitious) "John Leonard" <jleonard2.butnospam@si.rr.com>
wrote in news:CrsKa.10928$IA3.2513838@twister.nyc.rr.com:

IMHO you are lacking 2 key ingredients:

1. Sense of humor
2. Technical knowledge

Study and train with intelligence. Best of luck.


Currently playing:
Andamos borrchos Todos (El Chapo de Sinola)

In article <CrsKa.10928$IA3.2513838@twister.nyc.rr.com>,
jleonard2.butnospam@si.rr.com says...

and had in fact come right out and suggested that we do the same.

No thanks.

I then suggested a place you could go and learn something.

You are welcome.
--
CQ

Now had a chance to do this a little more scientifically - presuming the
rips were of the same original Grease CD issue and that was derived from the
same masters as the vinyl, which seemed to be the case - by comparing two
rips at different brs and the vinyl.

Conclusion: the 160Kb/s rip lost some stereo image compared with the
490Kb/s rip and the vinyl, ie: depending on what was happening in the
music, it was often more difficult to 'locate' an instrument or voice
within the stereo image because the overall effect was 'mushier' (technical
term).

"Java Jive" <java@evij.com> wrote in message
news:3efaefff$0$45173$65c69314@mercury.nildram.net ...
[snipped]

I did say *a little* more scientifically. I've already mentioned one reason
why I'm not prepared to do a full pukka scientific test, another reason is
the time.

If you want pukka, you do the work :-)

"Jim Higgins" <UseAddressBelow@pandora.orbl.org> wrote in message
news:ldf1gvg3r5jhrk9mea9phfeqa71rpotcou@4ax.com...
Quite possibly, yes, and yes. However, since we have millions of CDs
around the world derived from analogue master tapes which have perfectly
good stereo images digitally editing is unlikely to have destroyed it, and
if it had then both rips would have showed the effect, which was not the
case. And the vinyl having been played before only introduces vinyl noise
such as wear and scratches, to lose its stereo information thereby a record
would have to be so worn that it would be just about unplayable anyway. It
also seems a reasonable bet that the same masters were used, because I
couldn't detect any musical or sound-engineering differences in the tracks I
listened to.

The brs were what happened to be available on the web at the time, and I
wasn't aware of any additional information.

Strange, I seem to have heard something like this before somewhere, oh yes
I remember now, this was in my original post: "What one would need to do
to check this would be to take a sample of tracks from differing types of
music, encode a series of MP3s of each one with different parameters,
particularly different bit-rates, and then compare each in turn with the
original uncompressed source."

Not to mention the fact that you're ineveitably sitting on one side or other
of the car, and are therefore much nearer to one set of speakers than the
other. My brief tests can't enable me to say at what point the loss of
stereo image begins to cut in, so unless and until I have more information,
I'm happy to take your word for that.

However I do now feel able to say, whereas before I could only guess, that
over-compression does weaken the stereo image, thus answering the OP's
second point.