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<p>Yes, Kevin. We know about the statistical dynamic variability
being conserved (LRA). As a matter of fact, between 1950 and 2010,
LRA actually increased slightly! Please see my book, third
edition, quoting the statistics garnered by Rudy.... but the key,
as Thomas Lund and I have pointed out numerous times, is that LRA
is not an arbiter of sound quality. PLR is a far more reliable
indicator of sound quality, and PLR decreased notably between 1950
and 2010. <br>
</p>
<p>So the article is a clear key of "lying with statistics" or at
least "lying with ignorance."</p>
<p><br>
</p>
<p>Bob</p>
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<div class="moz-cite-prefix">On 2/18/17 5:46 PM, Kevin Gross wrote:<br>
</div>
<blockquote
cite="mid:CALw1_Q2KQYhJLKEn-4Sg9qnc-RRr+8Pr=htBHn0Mrk+20+yCSw@mail.gmail.com"
type="cite">
<div dir="ltr">I found this part interesting, "...although music
recordings become louder, their absolute dynamic variability has
been conserved, understanding dynamic variability as the range
between higher and lower loudness passages of a recording.
However, and perhaps most importantly, one should notice that
digital media cannot output signals over 0 dBFS, which severely
restricts the possibilities for maintaining the dynamic
variability if the median continues to grow."
<div><br>
</div>
<div>Over the period studied, loudness came up but "the absolute
difference between the first and third quartiles of x remains
constant around 9.5 dB." I would suggest that the increase in
loudness is because improved digital processing allows it. In
the first paragraph I quoted, the authors <i>predicted </i>a
future loss of dynamic range due to the 0 dBFS limit. But what
appears to have happened instead in the 10 years since the
most recent data in the study is that as we hit that 0 dBFS
limit and fundamental limits of dynamics processing, the
intensity of the loudness war has abated leaving us with the
constant 9.5 dB loudness variability.</div>
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<div class="gmail_extra"><br>
<div class="gmail_quote">On Sat, Feb 18, 2017 at 2:44 AM, Grimm
| Eelco <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:eelco@grimmaudio.com" target="_blank">eelco@grimmaudio.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">I found
this interesting article in Nature about the Evolution of
Contemporary Western Popular Music. Even when skipping the
hard core statistics, it offers interesting insights...<br>
<br>
<a moz-do-not-send="true"
href="http://www.nature.com/articles/srep00521"
rel="noreferrer" target="_blank">http://www.nature.com/<wbr>articles/srep00521</a><br>
<br>
All the best,<br>
Eelco<br>
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If you want good sound on your album, come to
Bob Katz 407-831-0233 </font><font face="Courier">DIGITAL DOMAIN MASTERING STUDIO
Author: <b>Mastering Audio </b></font><font face="Courier">
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