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What happened to
dynamic range? That's a question that should be
asked of record labels, producers, artists, and last but not least, recording and mastering engineers.
The question needs to be asked because we're the ones
responsible for what's happened to our music. Much
of the music we listen to
today is nothing more than distortion with a beat (see the
sine wave reference in the chart below).
It's not because the music is inferior. Great
music is suffering because
it lacks dynamic range. When music lacks dynamic
range, it lacks punch, emotion, and clarity. The
record labels blame digital downloads, MP3s, CD burners, and
others for the lack of CD sales. While there is
some truth to their constant whining, they only have
themselves to blame for the steady decline in CD sales.
The record labels need to reevaluate what they consider to
be good music.
Much of the music being produced today isn't music at all. It's
best described as anti-music. It's anti-music
because the life is being squashed out of it through over
compression during the tracking, mixing, and mastering
stages. It's simply, non musical. It's no wonder
that consumers don't want to pay for the CDs being
produced today. They're over priced and they sound
bad.
In 2005, CD music sales in the U.S. slid
to their lowest level since 1996, ending all hopes that
the music industry's downward sales trend may have
bottomed out. This is according to sales data
released by Nielsen
SoundScan, a tracking firm that measures point
of sale purchases across the U.S. Although there was
a slight upturn in sales in 2004, total CD sales fell 7.2
percent from 2004 to 618.9 million units in 2005, the
lowest since 1996, when they were 616.6 million.
It's time for all of us in the music industry to wake
up! Our musical heritage is being threatened by this
wave of anti-music.
What is dynamic range anyway? Dynamic range is the
difference between the softest and loudest sounds we can
hear. Or, to put it another way, the difference between
the softest and loudest sounds in a recording.
Dynamic range is measured in decibels (dB). For
comparison, the
typical dynamic range for a cassette recording is around
60 dB, while CDs can reach a
dynamic range of 96dB.
For years we've tried to recreate the excitement of a live
performance by trying to maintain as wide a dynamic range
as possible. This has always been difficult with
analog recording. We had to keep the softest signals
above the noise floor while keeping the loudest signals
below the level of distortion. To keep the soft
signals from being buried in tape hiss, we had to record
with as high a level as possible. To keep our loud
signals from distorting, we had to compress the signal
which resulted in a restricted dynamic range. As the
years went by, many improvements were made in recorder and
tape technology. This, along with various types of
tape noise reduction systems, helped to improve the
dynamic range of our recordings, but it was still
limiting.
Then one day we awoke to a new technology, "digital recording." Wow, now with
a dynamic range of over 90 dB, our recordings could almost
rival a live performance. Well, in theory, yes.
However, the music industry had other ideas.
Rather than use this new technology to take advantage of
it's wide dynamic range, the music industry went in the
opposite direction. They decided that louder is
better. Suddenly, we found ourselves in a race to
see whose CD was the loudest. The only way to make
CDs louder was to keep compressing the signal more and
more. That's where we are today. Everyone's
trying to make their CD sound louder than everyone else's.
The term that is used for this process is called, hot.
Yes, most of today's music is recorded hot. The net
result, distortion with a beat.
In December, 2001, several prominent individuals in the
recording industry served on a panel to judge the best
engineered CD for the Grammy's. After listening to
over 200 CDs, they couldn't find a single CD worthy of a
Grammy based on the criteria they were given.
Everything they listened to was squashed to death with
heavy amounts compression. What they wound up doing
was selecting the CD that had the least amount of
engineering. In reality, the winner didn't win
because of great engineering, he won simply because he had
messed with the signal the least. On second thought,
maybe that was great engineering. For the record,
the winner that year was Norah Jones' CD, "Come Away
With Me."
Here's a quote from Roger
Nichols, one of the participants
on that panel. "Last month, I listened to all
the CDs submitted
to NARAS for consideration in the 'Best Engineered
Non-Classical' Grammy category. We listened to about
3 to 4 cuts
from the 267 albums that were submitted. Every
single CD was squashed to death with no dynamic range.
The Finalizers
and plug-ins were cranked to 'eleven' so that their CD
would be the loudest. Not one attempted to take
advantage of the
dynamic range or cleanliness of digital recording."
- Roger Nichols Grammy winning engineer for Steely
Dan, Beach Boys and
more. EQ
Magazine January, 2002,
issue.
The Myth Of Radio-Ready CDs. (mastering
specifically for radio)
Radio ready is an ambiguous term created by marketing
professionals whose goal is to sell a product or service.
It's in your best interest to be an informed artist or
producer. Radio is the great leveler. It takes
songs that are soft and dynamic, and brings them up in
level to compete with the so called loud songs. In
doing so, the dynamics of these songs are greatly reduced.
But that's not all. Radio compressors are designed
to drive peaks down. They will view a loud song as
one huge peak and will
reduce it's overall level. This can make a loud song
lower in level than a properly mastered recording.
Loud songs don't sound louder on the radio. They sound
softer and distorted. The exact opposite of what was intended.
So, why do many still believe their CD needs to be mastered loud to sound
good on the radio? It's because of misinformation.
Recordings need no special processing to sound good on the
radio. Radio limits peaks and raises the level on
its own. Mastering music specifically for radio (making it loud)
only serves to make it sound worse. Also see: What
Happens To My Song When It's Played On The Radio?.
There's no excitement in today's music. There's no
texture, and certainly no reason to buy it. Many people today accept this hot
sound because that's all they know. They weren't
brought up on music that sounds "musical." I can't
believe what we've done to our music. We've somehow
allowed radio, with it's limited dynamic range and frequency response, to become
the standard for what sounds good. We want the CDs
we buy to sound like they do on the radio. What happened to
recreating the excitement of a live performance?
Does any of this make sense? Is it possible that
we've moved forward with our technology, but backward in
our thinking? The loudness wars have been with us
for a long time. With analog, there was a
"loudness" limit. With digital technology,
however, there is no limit. The music
industry now has the ability to destroy it's own product
Don't Fall For The Loud CD Trap
Below is a chart that traces the increase in CD levels.
It clearly shows how the average level of CDs has changed
over the years due to the "Level Wars" engaged
in by the music industry. CDs produced in 1985 had
an average (RMS) level of -18dB. This left plenty of room for musical peaks,
or to put it another way, punch. It's the average
level, not the peak level, that gives music it's perceived
loudness. As we move into the 90's we can see the
slow change taking place as the music industry enters into
the "Level Wars" and begins to destroy our
music. The average level of CDs in 1990 was -12dB.
Then, as our chart shows, the level was raised to -6dB in
1995. In 2000, CDs reached an average level of -3dB.
Since 2000, many CDs have been produced at an average
level that's between digital zero and -3db. As the
average level of CDs was raised, dynamic range was
reduced. By 2002, this raise in average level was so
severe, it caused a big loss in clarity and reduced the
overall quality of commercial CDs. By 2005, it
became even worse. |