<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class=""><br class="webkit-block-placeholder"></div><div class="">Hi All,</div><div class=""><br class=""></div><div class="">Buddy got back to me quickly - he says there is a known issue with the macOS Music app where songs bought and downloaded still use the old Sound Check value, which they’re working on. This explains the strange M1 Mac result.</div><div class=""><br class=""></div><div class="">I also tested from my iPhone this morning which is normalising to -16 LUFS, even with older files like Death Magnetic, which is great news.</div><div class=""><br class=""></div><div class="">However my Mojave iTunes is still using the Legacy Sound Check setting, I’ve asked Buddy if there will be an update to fix this and will let you know what he says.</div><div class=""><br class=""></div><div class="">So, basically good news - hopefully they’ll fix that bug fairly quickly, and hopefully also roll LUFS back to older Mac OS versions. Lots of musicians and engineers use these old versions, so it will be a source of plenty of confusion if they don’t...</div><div class=""><br class=""></div><div class="">Ian</div><div class=""><br class="webkit-block-placeholder"></div><div class=""><br class=""></div>
<div><br class=""><blockquote type="cite" class=""><div class="">On 23 Feb 2022, at 16:18, Bob Katz <<a href="mailto:bobkatz@digido.com" class="">bobkatz@digido.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
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<div class="moz-cite-prefix">On 2/23/22 6:38 AM, Ian Shepherd wrote:<br class="">
</div>
<blockquote type="cite" cite="mid:29336B02-F42B-4DFA-B271-99557CE7EA1B@mastering-media.co.uk" class="">
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Hi All,
<div class=""><br class="">
</div>
<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>
<div class=""><br class="">
</div>
<div class="">I have other examples but specifically Bob drew my
attention to this song:</div>
<div class=""><br class="">
</div>
<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="">
</div>
<blockquote type="cite" class="">
<div class="">aa itu loudness: -8.5</div>
<div class="">sound check volume normalization gain: -7.50 dB</div>
</blockquote>
<div class=""><br class="">
</div>
<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>
</div>
</blockquote><p class=""><br class="">
</p><p class="">Oy vey. <br class="">
</p><p class="">Well, I agree, this means that the legacy SoundCheck is being
used. We need some clarification from Buddy Judge. <br class="">
</p><p class="">Let's compile this information and alert Buddy Judge. At the
least he will have an explanation. <br class="">
</p><p class=""><br class="">
</p>
<blockquote type="cite" cite="mid:29336B02-F42B-4DFA-B271-99557CE7EA1B@mastering-media.co.uk" class="">
<div class="">
<div class=""><br class="">
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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>
</div>
</blockquote><p class=""><br class="">
</p><p class="">I'm glad you wrote him!</p><p class=""><br class="">
</p><p class="">Best,</p><p class=""><br class="">
</p><p class=""><br class="">
</p><p class="">Bob</p><p class=""><br class="">
</p><p class=""><br class="">
</p><p class=""><br class="">
</p><p class=""><br class="">
</p>
<blockquote type="cite" cite="mid:29336B02-F42B-4DFA-B271-99557CE7EA1B@mastering-media.co.uk" class="">
<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); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><br class="Apple-interchange-newline">
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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="">
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If you want good sound on your album, come to
Bob Katz 407-831-0233 DIGITAL DOMAIN MASTERING STUDIO
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