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So what are some facts about the
quality of sound from vinyl versus digital? LP adherents claim that
something is “lost” in digital recordings that degrades their
sound quality. While technically a wee bit true, the fact is
that the human ear cannot tell the difference. First, the sampling
rates of most all digital recordings are sufficiently fast to provide sound
to the ear that cannot be distinguished from a fully analog LP. There
is, in fact, nothing lost that the human ear can detect. In
other words, the actual frequency range that the ears deliver to the brain
from each source of sound is indistinguishable. Now, how the brain
perceives different forms of recorded music is another
matter—especially if one allows one's biases to creep in. But
that's a feeling issue—not a fact.
Second fact: the qualities and
capabilities of different types of recording and playback equipment
matters... and are crucial. There is often a significant difference
in how well one recording is made, compared to another—regardless
of what medium is used to listen. Modern recording equipment and
procedures are very different from a few decades ago, in several
ways. Older recordings will thus sound different from new ones. There
is a factual quality issue here (new techniques are more
sophisticated and realistic), but there's also a feeling issue. Some
people simply like the retro sound of an analog LP—regardless of its
relative quality.
Then there's the playback
equipment. A good recording will never sound great on an inferior
sound system, just as a high-priced system will never be able to make
a poor recording sound good.
Third fact: the acoustics of the
listening environment plays a central role. Is one listening through
headphones or maybe earbuds? If so, the room acoustics are
irrelevant. But the acoustic qualities of the listening space will
strongly influence the quality of the sound from speakers, and thus
the listening experience. Some people listen primarily through
earbuds or headphones or from speakers in their car. Their experience
will be very different from someone who has a superb sound system set
up in a room with excellent acoustics. Finally, any interfering
background noise will alter the experience. Listening to earbuds in
traffic is not the same as sitting before good speakers in a quiet
room.
Fourth fact: the quality of a
recorded music session depends heavily on the skill and quality of
the engineer who did the recording. The number, capability, and
placement of microphones is also crucial. The number of recorded
tracks and how they are later electronically altered and mixed is
critical. The skills of these engineers can be even more important
than the talent of the musicians or the quality of the playback
equipment. An engineer/mixer today has dozens of options to play with
and enhance the signal, that did not exist a decade or so ago.
The bottom line—what causes a
listener to prefer one form of recorded music over another—is very
much a personal matter. One's idiosyncrasies, biases, and past
experiences play as much a role as the factual quality of the music.
And our personal listening experience is what it all comes down to. I
think it would help make controversies and disagreements less
contentious if there wasn't so much misinformation floating around.
It's tough enough to make a decision of what you feel is best (and
the end feeling is what matters), even when you know the facts. We
have access to many kinds of listening experiences. Most of us will
make a choice and pick what we think is best for us. That choice can
be negatively impacted when the advice we get is in error.
There are various debates raging in
recent years over which provides a better listening experience: (1)
vinyl records or CDs, (2) different sampling rates for digital sound,
and (3) streaming or recorded music. I have weighed in on this debate
in a previous blog (“Authentic Audio,” January 2014), in which I
reviewed the technical facts of vinyl vs digital recording. There is
a lot of misinformation floating in the air and on the internet—most
of it not intentionally wrong (unlike the deliberate spread of false
news and information that is a current problem).
The debate that becomes most
strident is about which is superior, LP records or CDs; but also
between various forms of digitally-recorded music. Vinyl is currently
enjoying a retro popularity. Record companies are scrambling to
provide the public the number of LPs they want. Old machines that
press vinyl LPs—that were mothballed when CDs came along—are
being rescued and refurbished. Old engineers and technicians who once
operated these machines suddenly find themselves being coaxed out of
retirement with bundles of money. Old jukeboxes are also in demand.
The price of old LPs mushrooms. Is this an example of retro
fetishism?
How much of this demand is driven
by facts and how much by feelings? That's a difficult question to
answer. Nostalgia and retro beliefs play a strong—if not
dominant—role in people's opinions. Sentimentality and beliefs
both lead to feelings about the best sound, and those who are influenced
by the LP trend tend to think, “Damn the facts, I go with my
feelings.” Like global warming, there is a strong tendency to be
suspicious of engineers or technicians who purport to present the
facts—particularly when they conflict with one's beliefs and
sentiments.
So what is the truth about the best
sound? Which of the options—LPs or various digital
alternatives—offers the best listening experience? Well, since
one's experience is relative, there is no straightforward answer. Let
me address the issue by making a distinction between facts and
feelings. Unlike when judging some forms of art—the resolution of
this issue is not just a case of “beauty is in the eye of the
beholder.” Preferring one painting to another, for example, is very
much a subjective process. Who's to say which painter is better?
But there are some facts about the
quality of a music recording; facts that refute what some proponents
of LP music are saying. Next time I'll cover a few of them.
More on recorded music next time...