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Eiron June 24th 07 02:26 PM

How can I tell music has been an MP3? Quantitative Measurementof Fidelity
 
Ty Ford wrote:
On Sat, 23 Jun 2007 16:39:06 -0400, Karl Uppiano wrote
(in article Kxffi.2684$XH5.1402@trndny02):

Former Beatle, George Harrison said that every generation has its own

"sound",

George left the Beatles? Ah, another euphemism for "dead."

Fascinating. I'm collecting them.


Here are a couple of which you may not have heard.
http://www.phespirit.info/derekandclive/live_12.htm

--
Eiron.

Richard Crowley June 24th 07 05:52 PM

How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 
"Dave Plowman (News)" wrote ...
I've got pretty well every Beatles LP and CD, the CDs bought as they
came
out, same as the LPs, and in every case (IMHO) the CD sounds miles
better
than the LP. Many of which weren't the best of pressings anyway. EMI
weren't *that* careful with their pop stuff. Perhaps the most instant
comparison I could make if you have both is 'Michelle', the last track
on
side one of Rubber Soul. On every combination of pressing and playing
equipment I've heard it is quite heavily distorted - but not so on the
CD.
I've not had the opportunity to compare the single.


Of course, the closer you get to the center of the LP,
the "slower" the "writing speed" and the poorer the
reproduction. LPs are "CAV" constant angular velocity,
they rotate at 33 1/3 RPM regardless of where you are
reading.

OTOH, CDs are CLV, constant linear velocity. CDs
rotate at ~500 RPM at the begining of the track (in the
center) and only ~200 RPM at the end (the outer edge).


Dave Plowman (News) June 24th 07 11:41 PM

How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 
In article ,
Richard Crowley wrote:
"Dave Plowman (News)" wrote ...
I've got pretty well every Beatles LP and CD, the CDs bought as they
came out, same as the LPs, and in every case (IMHO) the CD sounds
miles better than the LP. Many of which weren't the best of pressings
anyway. EMI weren't *that* careful with their pop stuff. Perhaps the
most instant comparison I could make if you have both is 'Michelle',
the last track on side one of Rubber Soul. On every combination of
pressing and playing equipment I've heard it is quite heavily
distorted - but not so on the CD. I've not had the opportunity to
compare the single.


Of course, the closer you get to the center of the LP,
the "slower" the "writing speed" and the poorer the
reproduction. LPs are "CAV" constant angular velocity,
they rotate at 33 1/3 RPM regardless of where you are
reading.


OTOH, CDs are CLV, constant linear velocity. CDs
rotate at ~500 RPM at the begining of the track (in the
center) and only ~200 RPM at the end (the outer edge).


Absolutely. Which shows the lie that LP sounds 'better' than CD. It's not
even consistent over itself. It's also a design fault given that many
classical pieces have the most demanding audio at the finish - exactly the
point where vinyl is at its worst.

--
*I can see your point, but I still think you're full of ****.

Dave Plowman London SW
To e-mail, change noise into sound.

Serge Auckland June 25th 07 10:19 AM

How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 


"Dave Plowman (News)" wrote in message
...
In article ,
Richard Crowley wrote:
"Dave Plowman (News)" wrote ...
I've got pretty well every Beatles LP and CD, the CDs bought as they
came out, same as the LPs, and in every case (IMHO) the CD sounds
miles better than the LP. Many of which weren't the best of pressings
anyway. EMI weren't *that* careful with their pop stuff. Perhaps the
most instant comparison I could make if you have both is 'Michelle',
the last track on side one of Rubber Soul. On every combination of
pressing and playing equipment I've heard it is quite heavily
distorted - but not so on the CD. I've not had the opportunity to
compare the single.


Of course, the closer you get to the center of the LP,
the "slower" the "writing speed" and the poorer the
reproduction. LPs are "CAV" constant angular velocity,
they rotate at 33 1/3 RPM regardless of where you are
reading.


OTOH, CDs are CLV, constant linear velocity. CDs
rotate at ~500 RPM at the begining of the track (in the
center) and only ~200 RPM at the end (the outer edge).


Absolutely. Which shows the lie that LP sounds 'better' than CD. It's not
even consistent over itself. It's also a design fault given that many
classical pieces have the most demanding audio at the finish - exactly the
point where vinyl is at its worst.

--
*I can see your point, but I still think you're full of ****.

Dave Plowman London SW
To e-mail, change noise into sound.


I've always wondered why first 78s then LPs evolved with the recording from
outside in. It must have been noticed right at the beginning that the
loudest parts of classical music are often at the end, so it would have made
no difference to the operation to have the start at the inner grooves. The
possible problem of the stylus falling off the outside of the record could
easily be solved with a locked groove, or a lip on the outer edge. Even the
even earlier cylinders had a constant velocity.

Funny how some things get done.....

S.

--
http://audiopages.googlepages.com



Dave Plowman (News) June 25th 07 12:05 PM

How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 
In article ,
Serge Auckland wrote:
Absolutely. Which shows the lie that LP sounds 'better' than CD. It's
not even consistent over itself. It's also a design fault given that
many classical pieces have the most demanding audio at the finish -
exactly the point where vinyl is at its worst.


I've always wondered why first 78s then LPs evolved with the recording
from outside in. It must have been noticed right at the beginning that
the loudest parts of classical music are often at the end, so it would
have made no difference to the operation to have the start at the inner
grooves. The possible problem of the stylus falling off the outside of
the record could easily be solved with a locked groove, or a lip on the
outer edge. Even the even earlier cylinders had a constant velocity.


Funny how some things get done.....


Some in house BBC 33 rpm coarse groove records were indeed cut from the
inside out.

--
*Money isn't everything, but it sure keeps the kids in touch.

Dave Plowman London SW
To e-mail, change noise into sound.

tonewheel June 25th 07 01:01 PM

How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 
On 23 Jun, 04:36, Rich wrote:

There may be another way, there is a public database of CD's, immdb
or something like that. I'm not sure how they identify the CD, perhaps
the volume name, but I suggest that any casually remastered CD, or
any made from mp3's from the net won't have the same volume name, or
whatever they use. That is, I suggest you rip the tracks from the
CD with some software that can identify the disk from immdb, if it
cannot identify the CD, there's a good chance it's as you suspect.
Unless you've for some obscure latin CD or something, the database
is not complete, but for any popular release this should work. I
think Nero will do this, I've not done it for years though.

Note, you don't have to rip the tracks, just see if the CD can
be identified.



About 5 years ago I digitised a lot of my old vinyl LP's and burned
them to audio CD-R's. I recorded the output of a turntable through a
RIAA (sp?) filter into a computer soundcard, saved as a huge WAV,
imported into SoundForge, did a bit of click/pop removal, put in
markers to separate the tracks, normalised, saved, then used CoolEdit
2000 batch mode to split the large wavs into individual wavs for each
track, then burned to disk.

Imagine my surprise when one of the resultant CD's came up with the
correct album title and track listing from gracenote....

TWJ


Anahata June 25th 07 01:09 PM

How can I tell music has been an MP3? Quantitative Measurementof Fidelity
 
Serge Auckland wrote:

I've always wondered why first 78s then LPs evolved with the recording from
outside in.


My guess: because it's easier to lower the needle accurately into the
groove that way.

Of course that all went out of the window when discs started being all
dfferent sizes, especially when we had to play 7" discs on a 12"
turntable, and I shouldn't be surprised if that's when those little
hydraulic lifting/lowering levers became popular.

Anahata

Schöön Martin June 25th 07 02:51 PM

How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 
tonewheel writes:


Imagine my surprise when one of the resultant CD's came up with the
correct album title and track listing from gracenote....

A couple of years ago I CDfied a couple of my brother-in-law's
LPs. I still have those tracks on my HD as .wav files and I played
one of them in one of the media players on my computer and it
identified the artist if not the album and track. I was very,
very surprised.

--
Martin Schöön

"Problems worthy of attack
prove their worth by hitting back"
Piet Hein

Markus Mietling June 25th 07 03:31 PM

How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 
tonewheel wrote in
.com:

About 5 years ago I digitised a lot of my old vinyl LP's and burned
them to audio CD-R's. I recorded the output of a turntable through a
RIAA (sp?) filter into a computer soundcard, saved as a huge WAV,
imported into SoundForge, did a bit of click/pop removal, put in
markers to separate the tracks, normalised, saved, then used CoolEdit
2000 batch mode to split the large wavs into individual wavs for each
track, then burned to disk.

Imagine my surprise when one of the resultant CD's came up with the
correct album title and track listing from gracenote....


I can imagine your surprise :-)

Interestingly, it was precisely the gracenote database that uncovered
the Joyce Hatto scam in spite of the tracks having been manipulated to
disguise the theft.

Pristine Audio's Andrew Rose still believes [1] that the information had
been deliberately planted. I believed that too, because I thought that
track identification works with md5sum or some similar hash.

Now that I read your story, it seems to me that the gracenote database
must implement some seriously powerful pattern matching technology.
Quite amazing, IMO.

m

[1] see http://www.pristineclassical.com/HattoHoax.html

Clifford Nelson June 25th 07 03:37 PM

How can I tell music has been an MP3? Quantitative Measurement of Fidelity
 
CBS television news played part of a Beatles song because they were
talking about Paul's divorce. It was in tune. It is slightly out of tune
on the two or three CD versions I have of it. It went through the
optical cable to a Harman Kardon AVR 240 from a cable TV box 48 Khz PCM.

John Lennon answered a question "Why is The Beatles music so popular?",
He said, "We don't know. We really don't know. If we knew we would be
managers."

The Beatles liked the movie "The Girl Can't Help It." starring Jane
Mansfield, about a couple of gangsters who controlled the jukebox
business.

I can't demonstrate how the 30 to 40 year old music was perfectly in
tune years ago to my nephews and nieces. They like the music, but they
will probable never know what all the excitement was about.

Maybe you just have to know who to bribe and how much to pay if you want
to communicate a voice or guitar note that is perfectly in tune to the
public. Maybe MP3, aiff, SACD etc. doesn't make that much difference.

Cliff Nelson

Dry your tears, there's more fun for your ears,
"Forward Into The Past" 2 PM to 5 PM, Sundays,
California time,
http://www.geocities.com/forwardintothepast/
Don't be a square or a blockhead; see:
http://bfi.org/node/574

http://library.wolfram.com/infocente...s=1;search_per
son_id=607


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