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	<title>EM &#187; media players</title>
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	<description>Here lies random</description>
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		<title>&#8216;Link&#8217; feature in media players</title>
		<link>http://www.ericm.ca/2008/01/11/link-feature-in-media-players/</link>
		<comments>http://www.ericm.ca/2008/01/11/link-feature-in-media-players/#comments</comments>
		<pubDate>Sat, 12 Jan 2008 04:48:24 +0000</pubDate>
		<dc:creator>Eric</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[Adobe Photoshop]]></category>
		<category><![CDATA[innovation]]></category>
		<category><![CDATA[media players]]></category>

		<guid isPermaLink="false">http://ericm.ca/2008/rant/link-feature-in-media-players</guid>
		<description><![CDATA[Most media players like Windows Media Player and Winamp allow you to assemble a custom playlist. In WMP, you can quickly compile a list by right-clicking a bunch of song names and selecting Add to Now Playing. I frequently turn on the Shuffle option when listening to playlists. But sometimes I don&#8217;t want it totally [...]]]></description>
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<p><div class="wp-caption alignleft" style="width: 183px"><img alt="A playlist in Windows Media Player" src="/images/wmp_playnext.gif" title="Windows Media Player playlist" width="173" height="320" /><p class="wp-caption-text">A playlist in Windows Media Player</p></div>Most media players like <a href="http://www.microsoft.com/windows/windowsmedia/download/">Windows Media Player</a> and <a href="http://www.winamp.com/">Winamp</a> allow you to assemble a custom playlist. In WMP, you can quickly compile a list by right-clicking a bunch of song names and selecting <strong class="location">Add to Now Playing</strong>.</p>
<p>I frequently turn on the <strong class="location">Shuffle</strong> option when listening to playlists. But sometimes I don&#8217;t want it totally randomized. I&#8217;d like it if some songs were <em>grouped</em> together &#8211; if <em>song 1</em> was played, I&#8217;d like to hear <em>song 2 </em>and <em>song 3</em> played right after. Then after this group is played, the rest of the songs would continue to be shuffled until another group is played.</p>
<p>So how do we group songs in a playlist? I believe that media players can create a feature similar to the <strong class="location">Link</strong> option found in <a href="http://www.adobe.com/products/photoshop/index.html">Adobe Photoshop</a>.<span id="more-17"></span></p>
<h2>The link option in Photoshop</h2>
<p><div class="wp-caption alignright" style="width: 222px"><img alt="Photoshop layers link option" src="http://ericm.ca/images/layers_linked.gif" title="Photoshop Layers" width="212" height="174" /><p class="wp-caption-text">Photoshop layers link option</p></div>Sometimes in Photoshop, you&#8217;d like to perform a single task on several different layers at once. Say you want to move both <em>Layer 1</em> and <em>Layer 2</em> up by 20 pixels. You don&#8217;t have to perform this task separately. Photoshop makes tasks like these more efficient with the <strong class="location">Links</strong> option &#8211; you simply check the <strong class="location">Link</strong> icon next to the layers (which groups them together). Then moving one of these layers moves the entire group.</p>
<h4>But how do we create more than one group?</h4>
<p>Again, we can turn to the brilliant engineering of Photoshop. When you press the <strong class="location">Link</strong> button next to a layer, it is <em>hidden </em>when the linked layers is <em>unselected</em>. </p>
<p>For example, if we take a look at the image above, we can see that both <em>Layer 1</em> and <em>Layer 2</em> are linked. However, the <strong class="location">Link</strong> icon would <em>not </em>be displayed if both these layers are unselected &#8211; such as by selecting Layer 3 or 4.</p>
<p>This means that if we currently have an <em>unlinked </em>layer selected (Layer 3 or 4), then<em> Layer 1 </em>and <em>Layer 2</em> from the first group would not be selected, and thus no <strong class="location">Link</strong> icons would be visible. </p>
<p>Then, if we check the <strong class="location">Link</strong> icon on any other layer (Layer 3, 4, etc.), the layers from group 1 are <em>not </em>part of this second group since their link icons are not visible.</p>
<p>You should note that a layer cannot be linked in more than one group.</p>
<h2>Application to media players</h2>
<p>Media players can adapt apply this link feature to their own playlists by allowing users to tick off songs. All the ticked songs would then be grouped together. So whenever <strong class="location">Shuffle</strong> stumbles upon a song that is part of a group, the entire group is played before the media player continues to randomly select another song to play.</p>
<p>What I&#8217;ve learned from studying business plans is that what works for one thing (company, software, etc.) can successfully work for a completely different thing. But the opposite can be true too. As an innovator, I think that media players can really use this feature if it&#8217;s implemented properly.</p>
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