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<div class="moz-cite-prefix">On 2/23/22 6:38 AM, Ian Shepherd wrote:<br>
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cite="mid:29336B02-F42B-4DFA-B271-99557CE7EA1B@mastering-media.co.uk">
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Hi All,
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<div class="">Just a heads-up about this. We’re planning an update
to Loudness Penalty to reflect the news that iTunes is going to
use LUFS for Sound Check, but I wanted to warn you that in our
tests it doesn’t seem to be working as intended, even on a brand
new M1 Mac with the latest software updates and recently
released material.</div>
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<div class="">I have other examples but specifically Bob drew my
attention to this song:</div>
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<div class="">
<div class=""><a
href="https://music.apple.com/gb/album/the-joker-and-the-queen-feat-taylor-swift/1608894948?i=1608894952"
class="moz-txt-link-freetext" moz-do-not-send="true">https://music.apple.com/gb/album/the-joker-and-the-queen-feat-taylor-swift/1608894948?i=1608894952</a></div>
<div class=""><br class="">
</div>
<div class="">Using the afinfo command in Terminal it reports
the following results:</div>
<div class=""><br class="">
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<blockquote type="cite" class="">
<div class="">aa itu loudness: -8.5</div>
<div class="">sound check volume normalization gain: -7.50 dB</div>
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<div class="">This would result in a playback loudness of -16
LUFS, but measuring the actual value gives a result of -15.1
LUFS, which is a normalization change of only -6.6 dB</div>
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<p>Oy vey. <br>
</p>
<p>Well, I agree, this means that the legacy SoundCheck is being
used. We need some clarification from Buddy Judge. <br>
</p>
<p>Let's compile this information and alert Buddy Judge. At the
least he will have an explanation. <br>
</p>
<p><br>
</p>
<blockquote type="cite"
cite="mid:29336B02-F42B-4DFA-B271-99557CE7EA1B@mastering-media.co.uk">
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<div class="">Whereas the "Song Info>File>Volume" value in
iTunes reports -6.7, which is obviously a very close match to
the measured result. Since this is the “Legacy” Sound Check
value, this song and other examples like it make me think that
LUFS values aren’t being used yet, on Mac OS at least.</div>
<div class=""><br class="">
</div>
<div class="">Testing the results from iOS is tricky because of
Apple’s copy protection, but if we make any progress with this
I’ll let you know.</div>
<div class=""><br class="">
</div>
<div class="">I’ve emailed Buddy to ask about this, and will let
you know if I get a reply - perhaps it’s just a glitch!</div>
<div class=""><br class="">
</div>
<div class="">Either way I wanted to make you aware so that we
don’t jump the gun announcing the change.</div>
<div class=""><br class="">
</div>
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<p>I'm glad you wrote him!</p>
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<p>Best,</p>
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</p>
<p><br>
</p>
<p>Bob</p>
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<blockquote type="cite"
cite="mid:29336B02-F42B-4DFA-B271-99557CE7EA1B@mastering-media.co.uk">
<div class="">
<div class="">Cheers,</div>
<div class=""><br class="">
</div>
<div class="">Ian</div>
<div class=""><br class="">
</div>
<div class="">
<div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);
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<div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);
font-family: Helvetica; font-size: 12px; font-style: normal;
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widows: auto; word-spacing: 0px; -webkit-text-size-adjust:
auto; -webkit-text-stroke-width: 0px; text-decoration:
none;">***<br class="">
Ian Shepherd<br class="">
<a href="http://mastering-media.co.uk/" class=""
moz-do-not-send="true">Mastering Media Ltd</a> - Audio
Mastering, Blu-ray and DVD Excellence<br class="">
<a href="http://twitter.com/ianshepherd"
class="moz-txt-link-freetext" moz-do-not-send="true">http://twitter.com/ianshepherd</a></div>
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widows: auto; word-spacing: 0px; -webkit-text-size-adjust:
auto; -webkit-text-stroke-width: 0px; text-decoration:
none;"><a href="http://twitter.com/ianshepherd" class=""
moz-do-not-send="true"><br class="">
</a><span style="font-size: 11px;" class="">Mastering Media
Ltd,</span><br style="font-size: 11px;" class="">
<span style="font-size: 11px;" class="">Kemp House, 152 City
Road, London, EC1V 2NX</span><br style="font-size: 11px;"
class="">
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England and Wales </span><br style="font-size: 11px;"
class="">
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<span style="font-size: 11px;" class="">Tel. +44(0)1487
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</blockquote>
<div class="moz-signature">-- <br>
<pre><font class="3D""" face="3D"Courier"">
If you want good sound on your album, come to
Bob Katz 407-831-0233 DIGITAL DOMAIN MASTERING STUDIO
Author: <b>Mastering Audio</b>
<a href="https://www.digido.com/">Digital Domain Website</a>
No trees were killed in the sending of this message. However a large number
of electrons were terribly inconvenienced.</font>
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