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	<description>Emacs, sketches, and life</description>
  
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		<title>Editing audio and embedding it into a MS Powerpoint file</title>
		<link>https://sachachua.com/blog/2010/06/geek-of-all-trades-editing-sounds/</link>
		<dc:creator><![CDATA[Sacha Chua]]></dc:creator>
		<pubDate>Fri, 25 Jun 2010 12:00:00 GMT</pubDate>
    <category>geek</category>
<category>ibm</category>
		<guid isPermaLink="false">https://sachachua.com/blog/?p=7228</guid>
		<description><![CDATA[<p>Jade asked me for help in converting a CEO interview from 51 MB (it was an AVI!) to something more manageable, condensing it from 00:02:09 to around 00:01:30, and embedding it into a Microsoft Powerpoint file in time for her dry-run presentation. </p>
<p>Fortunately, I’m a geek.</p>
<p>I used <a href="http://www.aoamedia.com/audioextractor.htm">AoA Audio Extractor</a> to extract the audio track and convert it into an MP3, which slimmed the 51 MB file down to 1.5 MB. Then I used <a href="http://audacity.sourceforge.net/">Audacity</a> to edit the MP3. First, I removed all the ums, ahs, repeated words, filler words, and long pauses. That got me to about 00:01:50. After that, I removed as many of the questions as I could, and trimmed other unnecessary words from the answers. Result? Clocked in at 00:01:26, four seconds under target. Woohoo!</p>
<p>I’m starting to enjoy editing audio. I used to think editing was a bit tedious, but now I see it as a way to help people sound like much better speakers.</p>
<p>As it turns out, you can’t embed an MP3 into a Microsoft Powerpoint file – at least, not directly. Microsoft Powerpoint can embed WAVs, but WAVs can be quite big. (16 MB vs 1.1 MB for our condensed file.) But you can use <a href="http://sourceforge.net/projects/cdexos">CDex</a> to add a <a href="http://www.technologytrish.co.uk/pptembedmp3.html">RIFF wav header to your MP3</a>, change your <strong>Tools &gt; Options &gt; General &gt; Link sounds with file size greater than </strong>option to something like 50000 (to embed anything smaller than 50MB), and then insert your new WAV-which-is-really-an-MP3-in-disguise.</p>
<p>I put it together and sent her the file using instant messaging. (Yay Sametime!). We confirmed that it worked at 9:59 AM, just in time for her 10 AM dry run.</p>
<p>Thank you, Internet!</p>

<p>You can <a href="https://sachachua.com/blog/2010/06/geek-of-all-trades-editing-sounds/#comment">view 3 comments</a> or <a href="mailto:sacha@sachachua.com?subject=Comment%20on%20https%3A%2F%2Fsachachua.com%2Fblog%2F2010%2F06%2Fgeek-of-all-trades-editing-sounds%2F&body=Name%20you%20want%20to%20be%20credited%20by%20(if%20any)%3A%20%0AMessage%3A%20%0ACan%20I%20share%20your%20comment%20so%20other%20people%20can%20learn%20from%20it%3F%20Yes%2FNo%0A">e-mail me at sacha@sachachua.com</a>.</p>]]></description>
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