First off, it's obvious you are only here to flame.
>I CAN tell the difference between LPs and CD's, and the LP's have much
>better sound. despite the scratches.
LPs have what's known as even-ordered harmonic distortion. In other words,
distortions and colorations to the audio which actually make the music sound
pleasant.
However, these distortions are distortions, regardless to what they do to the
sound. Therefore, an LP is not an accurate rendition of the master tape.
>Maybe we heard a few scratches,
>but the rest of the recording was as REAL as REAL can be. Digital is
>only a sampling, and not everything is there.
Bullshit. If anything, CD captures audio in ranges with accuracy that is
simply not possible with LP due to practical considerations.
Your quote pretty much shows your lack of understanding of digital audio. In
the ranges that a 44.1 KHz sampling rate can capture at 16-bits, it can
**accurately and consistently** record the ranges from 22,050 cycles all the
way down to the 5 cycle range with 65,536 possible levels of voltage
(translates into approximately 96 dB of dynamic range with close to equal SNR
after dithering, which is FAR superior to even the best LP rigs) with a uniform
response under full digitization. CD can easily reproduce audio with accuracy
and with little effort that would otherwise be very difficult, if not
impossible, to achieve with LPs.
If you want a most accurate analogy to sampling rate in analogue terms: then
sampling rate is merely the equivalent of linear tape speed on something like a
reel-to-reel deck. The higher the tape speed, the better the high frequency
response. Likewise, the higher the sampling rate, the better the high
frequency response. To make it more interesting, if you were to play a 44.1
KHz recording at 22.05 KHz rate, the sound will play **twice as slow**!
Fascinating at how digital seems to mimic analogue tapes concerning frequency
response.
Anyways, records cannot be recorded with frequencies exceeding 15-16 KHz
because that is beyond the capacity of the record lathe, or cutter if you
aren't familiar with the word. Attempts to record at frequencies exceeding the
recommended roll-off will cause the cutter head to overheat and, therefore,
damage the lathe during the cutting of the mother, among other things.
Gabe M. Weiner, who was a professional recording engineer for PGM recordings
until his death in the late 1990s, had done a test where he records an LP
playback onto his DAT deck. When someone comes in, usually critical of digital
audio, Gabe plays an LP record, to which the critic sometimes replies with
something to the effect of "you can't do that kind of sound with digital."
Then, Gabe goes to the turntable and lifts the stylus off the record with the
music **still playing** with all of its LP quality ... preserved **digitally**
using Digital Audio Tape.
Similar experiments were done by curious people using high quality audio CD
recorder decks with similar results. Those results are not published, of
course, because they were done by audio enthusiasts under their own time. What
helps to prove their point is that there is consistency in the results: as long
as everything being used to make the recording is good and the whole process is
done without exceeding the limits of the system (like playing the souce too
loudly and then wondering why there is clipping in the recording), then the
results will remain relatively consistent.
Now what does that say about digital audio?
This pretty much proves, at least to me, that the so-called "magic" of LP sound
is due to what the format does to the sound in the process of playback. While
they are pleasing to the ear, it is, time and again, distortion artifacts that
are inherent to LP, period. Inaccuracies in an interpretation of a master tape
need not be unpleasant to be inaccurate, just plain inaccurate. To bolster the
fact that digital is accurate, it can even record an LP playback, "warmth and
airiness" qualities along with it, without a hitch.
To be on the level, digital is nothing more than another way to deal with
storing and replaying perceivable information. The ideas, regardless of
process, are the same: you convert information into a form for storage to
retrieve later, which is the whole idea of reproduction. With digital, you
turn a sound wave into a numerical representation. With LPs, you turn a sound
wave into a mechanical interpretation. With magnetic analogue audio tapes, you
turn a sound wave into magnetic print patterns.
With any process, you lose information that the process cannot store for
reproduction, due to design, configuration, or both. But, contrary to your
beliefs, digital encoding (as long as no lossy compression algorithms are used,
like MP3 or ATRAC and as long as the encoding equipment is properly dithered)
is LEAST DETRIMENTAL because it's interpreting the entire sound wave in the
complete frequency range that the sampling rate will allow as an accurate
mathematical model with parity checks to account for the ocassional error that
could occur as opposed to an LP making a dynamic physical approximation of a
sound wave through relatively inaccurate mechanical means which cannot be
corrected if this interpretation is altered in any way for any reason (usually
because of normal wear-n-tear, abuse, or a defect in manufacturing).
>Now for digital. I had someone burn all my photos onto a CD. Luckily
>I kept a copy on a spare harddrive, because the CD would not work.
>NOTHING could be gotten off the thing.
Irrelevant in the discussion of audio CD.
Besides, your situation may be explainable by possibilities that the individual
recorded the disc using too fast a speed which could have allowed excessive
BLER (BLock Error Rate), didn't close the session on the disc, or recorded it
using proprietary formatting like Roxio DirectCD instead of writing it as an
ISO compliant format.
Also, if the disc was a CD-RW, as opposed to a CD-R, if you use a rather
ancient CD-ROM drive, then that's also why you may not have been able to read
the disc. CD-RW discs do not have a refraction index of 1.55, so the optics in
an obsolete CD-ROM drive will not read the disc. A current CD-ROM drive is
configured to deal with discs having a different refraction rating to allow
CD-RW discs to be read, so an upgrade is in order to resolve this issue if it
is the case.
>My windows 98 CD got stepped
>on by one of the kids. I was unable to install windows at all after
>that.
And what do you think you can do with an LP that was stepped on, huh? Try to
weld the record together and hope that it will play like it did before the
break? Also, what do you think you can do with a floppy that someone bent in
half?
>I'd rather lose a few seconds of a song, or one photo out of 1000,
>than lose EVERYTHING. I do not trust digital media in the least.
Shows you do not understand digital at all and, therefore, should not post a
serious crticism.
>I
>wont even own a cd burner, because I would still keep everything
>stored on spare harddrives, so what is the sense of the cd at all
>then.
Storage that is more permanent than a hard disk and can be transported anywhere
and read by any data reader as long as the information is written in a standard
ISO format.
Besides, how in the hell do you think hard disks store data on their platters,
huh? Do they do it with analogue magic? NO! They do it DIGITALLY! It
doesn't have to be optical to be digital.
Likewise, it doesn't have to be digital to be optical. The LaserVision
videodisc system, also known as LaserDisc, is FM analogue. Although there are
LaserDiscs that contain digital audio tracks, they are stored within frequency
modulated subcarriers multiplexed to the analogue FM composite video signal.
Anyways, older hard drives used MFM, or modified frequency modulation, to store
data. This recorded an FM signal that contained digital information on the
platters. However, MFM hasn't been in use for hard disks in YEARS! I guess
you also think that new hard disks still use stepper motors for moving the
heads when drives produced beyond the past decade all the way up to today use
voice coil actuators for that job.
>To backup my utmost ultimate important data, I use floppies.
Again, how do you think information is written in those things? Floppies write
**digital** data in MFM formatting.
>They are
>much more reliable than any cds.
Bullshit.
>If one floppy goes bad, I lose 10
>pictures, not all 1000 of them.
Bad argument. Under proper care, as in CDs handled with care and put away in
their cases when not in use will have a theoretically infinite shelf life. For
CD-R media, depending on the quality of the disc itself, the shelf life can
range anywhere from 10 to 100 years. Fingerprints cannot damage the disc and
dust is easily cleaned. Optical discs, recordable rewritable and permanent,
cannot be erased by stray magnetic fields. Permanent discs because the pits
are permanently inscribed in the polycarbonate. Recordable and rewritable
discs because those rely on temperature changes to affect changes to the dye
layer, not magnetism.
In the case of magneto-optical, the area to be recorded as to be heated to its
curie point first before external magnetism can alter the track pattern.
Simply leaving the disc to be exposed by the sun for extended periods won't
heat the disc sufficiently enough to its curie point, but popping it in an oven
set to BROIL may, except who in their right mind would ever put any data
storage medium in an oven at any temperature, much less one that's set to
broil? As for the recorder, the heating is done under highly controlled
circumstances using a precision instrument to perform the actual heating.
After heating, a magnetic head above the disc pulses and inscribes data on the
disc. Instantly after heating and inscribing, the section of disc cools down
and the data inscription is permanent until it is heated to be altered again.
That's how MiniDiscs work.
Now, with floppies, they are susceptible to erasure or corruption from stray
magnetic fields. They will suffer physical wear as you do have a head
contacting the flexible magnetic diskette inside the floppy casing. They have
a shelf life of around 20-30 years, tops. Magnetic floppies are made using a
binder to bind the magnetic particles to the flexible plastic disc. Binders
will deteriorate and flake off after a number of years and is more susceptible
to damage from prolonged exposure to heat and light than decent CD-R discs.
Magnetic media isn't so superior when compared to laser optical discs after all
when you know the facts about them. - Reinhart