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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<title>OSS Audio Digitization Workflow</title>
<link rel="stylesheet" href="css/reveal.css">
<link rel="stylesheet" href="css/theme/black.css">
<!-- Theme used for syntax highlighting of code -->
<link rel="stylesheet" href="lib/css/zenburn.css">
<!-- Printing and PDF exports -->
<script>
var link = document.createElement( 'link' );
link.rel = 'stylesheet';
link.type = 'text/css';
link.href = window.location.search.match( /print-pdf/gi ) ? 'css/print/pdf.css' : 'css/print/paper.css';
document.getElementsByTagName( 'head' )[0].appendChild( link );
</script>
</head>
<body>
<div class="reveal">
<div class="slides">
<section data-background-image=Resources/uturn.jpg>
<br>
<br>
<br>
<br>
<br>
<br>
<div class="contrast">
<p>Audio Digitization Workflow using Open Tools</p>
</div>
<img alt="WSU Logo" src="Resources/mipopscoug.png"/>
<aside class="notes">
</aside>
</section>
<section data-markdown>
<textarea data-template>
#### Available at: pugetsoundandvision.github.io/nwa2019
<a rel="license" href="http://creativecommons.org/licenses/by/4.0/"><img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by/4.0/80x15.png" /></a><br />This work is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by/4.0/">CC-BY-4.0 International License</a>.
Note:
Presentation is available as a website - samples/resources available for later use.
</textarea>
</section>
<section data-markdown>
<textarea data-template>
#### Steps
* Calibration & Inspection
* Capture
* Metadata Embedding
* Batch QC
</textarea>
</section>
<section data-background-image=Resources/r2r.jpg data-background-size="contain">
<div class="contrast">
<p>Calibration & Inspection</p>
<li>Audiorecorder</li>
</div>
</section>
<section data-markdown>
<textarea data-template>
#### A focus on high frequencies
* Dirty Heads
* Misaligned Azimuth
* Wrong Noise Reduction Settings
</textarea>
</section>
<section data-markdown>
<textarea data-template>
Note:
Kinda speaks for itself, really
</textarea>
</section>
<section data-background-image=Resources/azimuth.jpg data-background-size="contain">
<aside class="notes">
Taken from an old Scotch 3M release
</aside>
</section>
<section data-background-image=Resources/exploded-sony.jpg data-background-size="contain">
</section>
<section>
<video src="Resources/azimuth-example-dual-mono.mp4" controls/>
</section>
<section>
<video src="Resources/azimuth-example-stereo-dtttc.mp4" controls/>
</section>
<section data-background-image=Resources/art-cassette.jpg data-background-size="contain">
<p>Capture</p>
<li>Audacity</li>
<li>Audiorecorder</li>
</section>
<section data-background-image=Resources/art-cassette.jpg data-background-size="contain">
<p>Target Specs</p>
<li>24 Bit PCM</li>
<li>96 kHz</li>
<li>-20 dB to -5 dB</li>
<aside class="notes">
96 kHz: Number of samples per second - 44.8 kHz roughly represents human audible specrum, this doubles that!
24 Bit: Level of detail in each sample. 24 bit lowers 'noise floor'
-20 is gives lots of headroom, requires normalization of access copies to be useful! -5 is pushing close to the limit! (clipping at zero)
</aside>
</section>
<section data-background-image=Resources/art-cassette.jpg data-background-size="contain">
<p>Capture</p>
<li>Audiorecorder</li>
<aside class="notes">
Fire up audiorecorder capture here!
</aside>
</section>
<section data-background-image=Resources/art-cassette.jpg data-background-size="contain">
<p>Metadata Embedding</p>
<li><a href="https://mediaarea.net/BWFMetaEdit" target="_blank">BWF Metaedit</a></li>
<aside class="notes">
Remind people to download from MediaArea, not FADGI or AVP!
Fire up BWF Metaedit GUI here!
</aside>
</section>
<section data-background-image=Resources/art-cassette.jpg data-background-size="contain">
<p>Metadata Embedding</p>
<li><a href="https://github.com/pugetsoundandvision/audiotools/blob/master/README.md" target="_blank">UW Metaedit</a>/<a href="https://github.com/WSU-CDSC/microservices/tree/master/wsumetaedit" target="_blank">WSU Metaedit</a></li>
<li><a href="https://github.com/pugetsoundandvision/audiotools/blob/master/supplemental/bwfmetadataexamples.md" target="_blank">BWF Metadata Examples</a></li>
<aside class="notes">
Show Broadcast Wave metadata examples here!
</aside>
</section>
<section data-background-image=Resources/fab-sounds-pnw.jpg data-background-size="contain">
<div class="contrast">
<p>Batch QC</p>
<li><a href="https://github.com/privatezero/audioqc/blob/master/README.md" target="_blank">QC script</a> using FFprobe and Mediaconch</li>
</div>
<aside class="notes">
Testing/Applying at WSU. Incorporates MediaConch compliance check with warnings for phase and high audio levels.
</aside>
</section>
<section data-background-image=Resources/audio-qc-out.png data-background-size="contain">
</section>
<section data-background-image=Resources/fab-sounds-pnw.jpg data-background-size="contain">
<div class="contrast">
<p>Questions?</p>
</div>
</section>
</div>
</div>
<script src="lib/js/head.min.js"></script>
<script src="js/reveal.js"></script>
<script>
// More info about config & dependencies:
// - https://github.com/hakimel/reveal.js#configuration
// - https://github.com/hakimel/reveal.js#dependencies
Reveal.initialize({
dependencies: [
{ src: 'plugin/markdown/marked.js' },
{ src: 'plugin/markdown/markdown.js' },
{ src: 'plugin/notes/notes.js', async: true },
{ src: 'plugin/highlight/highlight.js', async: true, callback: function() { hljs.initHighlightingOnLoad(); } }
]
});
</script>
</body>
</html>