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<p>Dear Eelco:</p>
<p>Apple has been reporting 1770 loudness in afinfo for more than a
year. Ever since Eric Allamanche came on board from Fraunhofer. He
told me it's a precursor of possible things to come, but no
promises!</p>
<p>sc is of course "sound check". I don't know what aa means!<br>
</p>
<p><br>
</p>
<p>Bob</p>
<p><br>
</p>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">On 6/5/17 3:49 AM, Grimm | Eelco wrote:<br>
</div>
<blockquote type="cite"
cite="mid:74D2152F-52F6-4BF7-80F6-7A05FB9C7962@grimmaudio.com">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
This is very encouraging news:<br>
<div><br>
</div>
<div>I had found a "Rite of Spring" album on Apple Music that
clipped when using album normalization. It turned out that
during some limited time there had been an error in the peak
calculation algorithm and a couple of hundred albums had been
affected by that when they were ingested. Please keep this
confidential. But my presentation of last year should have
mentioned this.</div>
<div><br>
</div>
<div>The really interesting part is this: Buddy just sent me the
afinfo data of the recalculated album. And look: they now
include 1770-style loudness!!! I am really becoming optimistic
that my -14 LUFS album normalization recommendation will be
adopted by Apple Music...</div>
<div><br>
</div>
<div>I wonder what "aa" means...</div>
<div><br>
</div>
<div>Cheers,</div>
<div>Eelco</div>
<div><br>
</div>
<div><br>
<blockquote type="cite">
<div style="word-wrap: break-word; -webkit-nbsp-mode: space;
-webkit-line-break: after-white-space;" class="">
<div class="">Here’s the old data (from afinfo in Terminal):</div>
<div class=""><br class="">
</div>
<blockquote style="margin: 0 0 0 40px; border: none;
padding: 0px;" class="">
<div class="">
<div style="margin: 0px; font-size: 11px; line-height:
normal; font-family: Menlo; background-color: rgb(255,
255, 255);" class=""><span
style="font-variant-ligatures: no-common-ligatures"
class="">Loudness Info:</span></div>
</div>
<div class="">
<div style="margin: 0px; font-size: 11px; line-height:
normal; font-family: Menlo; background-color: rgb(255,
255, 255);" class=""><span
style="font-variant-ligatures: no-common-ligatures"
class=""> sound check info :</span></div>
</div>
<div class="">
<div style="margin: 0px; font-size: 11px; line-height:
normal; font-family: Menlo; background-color: rgb(255,
255, 255);" class=""><span
style="font-variant-ligatures: no-common-ligatures"
class=""> sc ave perceived power coeff :
"705 775"</span></div>
</div>
<div class="">
<div style="margin: 0px; font-size: 11px; line-height:
normal; font-family: Menlo; background-color: rgb(255,
255, 255);" class=""><span
style="font-variant-ligatures: no-common-ligatures"
class=""> sc max perceived power coeff :
"3978 4854"</span></div>
</div>
<div class="">
<div style="margin: 0px; font-size: 11px; line-height:
normal; font-family: Menlo; background-color: rgb(255,
255, 255);" class=""><span
style="font-variant-ligatures: no-common-ligatures"
class=""> sc peak amplitude msec :
"72075 69846"</span></div>
</div>
<div class="">
<div style="margin: 0px; font-size: 11px; line-height:
normal; font-family: Menlo; background-color: rgb(255,
255, 255);" class=""><span
style="font-variant-ligatures: no-common-ligatures"
class=""> sc max perceived power msec :
"69846 69846"</span></div>
</div>
<div class="">
<div style="margin: 0px; font-size: 11px; line-height:
normal; font-family: Menlo; background-color: rgb(255,
255, 255);" class=""><span
style="font-variant-ligatures: no-common-ligatures"
class=""> sc peak amplitude :
"25902 26583"</span></div>
</div>
<div class="">
<div style="margin: 0px; font-size: 11px; line-height:
normal; font-family: Menlo; background-color: rgb(255,
255, 255); min-height: 13px;" class=""><br class="">
</div>
</div>
<div class="">
<div style="margin: 0px; font-size: 11px; line-height:
normal; font-family: Menlo; background-color: rgb(255,
255, 255); min-height: 13px;" class=""><br class="">
</div>
</div>
<div class="">
<div style="margin: 0px; font-size: 11px; line-height:
normal; font-family: Menlo; background-color: rgb(255,
255, 255);" class=""><span
style="font-variant-ligatures: no-common-ligatures"
class="">sound check volume normalization gain: 1.00
dB</span></div>
</div>
</blockquote>
<div class="">
<div style="margin: 0px; font-size: 11px; line-height:
normal; font-family: Menlo; background-color: rgb(255,
255, 255); min-height: 13px;" class=""><span
style="font-variant-ligatures: no-common-ligatures"
class=""></span></div>
</div>
<div class="">
<div style="margin: 0px; line-height: normal;
background-color: rgb(255, 255, 255); min-height: 13px;"
class="">and here’s the new data (which includes
1770-style loudness info too):<font style="font-size:
11px;" class="" face="Menlo"><span
style="font-variant-ligatures: no-common-ligatures"
class=""></span></font></div>
</div>
<div style="margin: 0px; font-size: 11px; line-height:
normal; font-family: Menlo; background-color: rgb(255,
255, 255); min-height: 13px;" class=""><br class="">
</div>
<div style="margin: 0px; font-size: 11px; line-height:
normal; font-family: Menlo; background-color: rgb(255,
255, 255); min-height: 13px;" class=""><br class="">
</div>
<blockquote style="margin: 0 0 0 40px; border: none;
padding: 0px;" class="">
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255);" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class="">Loudness Info:</span></div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255);" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class=""> sound check
info :</span></div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255);" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class=""> sc ave
perceived power coeff : "754 691"</span></div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255);" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class=""> sc max
perceived power coeff : "7607 8119"</span></div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255);" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class=""> sc peak
amplitude msec : "71866 71843"</span></div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255);" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class=""> sc max
perceived power msec : "71912 71935"</span></div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255);" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class=""> sc peak
amplitude : "31906 28628"</span></div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255); min-height:
13px;" class=""><br class="">
</div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255);" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class=""> main loudness
parameters :</span></div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255);" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class=""> aa ebu max
momentary loudness : -8</span></div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255);" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class=""> aa ebu top
of loudness range : -12</span></div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255);" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class=""> aa itu
sample peak : -0.21875</span></div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255);" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class=""> aa itu
true peak : -0.1875</span></div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255);" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class=""> aa ebu max
short-term loudness : -10</span></div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255);" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class=""> aa itu
loudness : -16</span></div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255);" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class=""> aa ebu
loudness range : 15.5</span></div>
</span></div>
</div>
</blockquote>
<blockquote style="margin: 0 0 0 40px; border: none;
padding: 0px;" class="">
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255); min-height:
13px;" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class=""></span></div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255); min-height:
13px;" class=""><br class="">
</div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255); min-height:
13px;" class=""><br class="">
</div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px;
line-height: normal; font-family: Menlo;
background-color: rgb(255, 255, 255);" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class="">sound check volume
normalization gain: -0.81 dB</span></div>
</span></div>
</div>
</blockquote>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px; line-height:
normal; font-family: Menlo; background-color:
rgb(255, 255, 255); min-height: 13px;" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class=""></span></div>
</span></div>
</div>
<div class="">
<div class=""><span style="font-variant-ligatures:
no-common-ligatures" class="">
<div style="margin: 0px; font-size: 11px; line-height:
normal; font-family: Menlo; background-color:
rgb(255, 255, 255); min-height: 13px;" class=""><span
style="font-variant-ligatures:
no-common-ligatures" class=""></span></div>
</span></div>
</div>
</div>
</blockquote>
</div>
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<pre class="moz-signature" cols="80"><font face="Courier">
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">
<a href="http://www.digido.com/">Digital Domain Website</a>
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