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	<title>Comments on: Device Shuts Off Radio Advertising; Tunes in Music</title>
	<atom:link href="http://blog.modernmechanix.com/2007/10/22/device-shuts-off-radio-advertising-tunes-in-music/feed/" rel="self" type="application/rss+xml" />
	<link>http://blog.modernmechanix.com/2007/10/22/device-shuts-off-radio-advertising-tunes-in-music/</link>
	<description>Yesterday's tomorrow, today.</description>
	<pubDate>Sun, 20 Jul 2008 17:45:22 +0000</pubDate>
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		<title>By: Mike</title>
		<link>http://blog.modernmechanix.com/2007/10/22/device-shuts-off-radio-advertising-tunes-in-music/#comment-1057987</link>
		<dc:creator>Mike</dc:creator>
		<pubDate>Fri, 11 Jul 2008 01:54:42 +0000</pubDate>
		<guid isPermaLink="false">http://blog.modernmechanix.com/2007/10/22/device-shuts-off-radio-advertising-tunes-in-music/#comment-1057987</guid>
		<description>Do radio stations still use tones to signal network and local breaks?  Did they use them to automate at the time this article was written?</description>
		<content:encoded><![CDATA[<p>Do radio stations still use tones to signal network and local breaks?  Did they use them to automate at the time this article was written?</p>
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		<title>By: jmyint</title>
		<link>http://blog.modernmechanix.com/2007/10/22/device-shuts-off-radio-advertising-tunes-in-music/#comment-1046453</link>
		<dc:creator>jmyint</dc:creator>
		<pubDate>Sun, 10 Feb 2008 16:48:24 +0000</pubDate>
		<guid isPermaLink="false">http://blog.modernmechanix.com/2007/10/22/device-shuts-off-radio-advertising-tunes-in-music/#comment-1046453</guid>
		<description>Radio "Commercial Killer" circuit schemes have been around almost since radio commercials. Most work by detecting the audio clipping in the signal.  When the Audio signal 'clips' (exceeds the max amplitude of the circuit) the killer circuit shuts off the output.  Generally there is like a three second delay before it can come back on.</description>
		<content:encoded><![CDATA[<p>Radio &#8220;Commercial Killer&#8221; circuit schemes have been around almost since radio commercials. Most work by detecting the audio clipping in the signal.  When the Audio signal &#8216;clips&#8217; (exceeds the max amplitude of the circuit) the killer circuit shuts off the output.  Generally there is like a three second delay before it can come back on.</p>
]]></content:encoded>
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		<title>By: captain flummox</title>
		<link>http://blog.modernmechanix.com/2007/10/22/device-shuts-off-radio-advertising-tunes-in-music/#comment-1046446</link>
		<dc:creator>captain flummox</dc:creator>
		<pubDate>Sun, 10 Feb 2008 15:25:19 +0000</pubDate>
		<guid isPermaLink="false">http://blog.modernmechanix.com/2007/10/22/device-shuts-off-radio-advertising-tunes-in-music/#comment-1046446</guid>
		<description>If wonder if Dr. Kenrick was sued into oblivion in the same way media lawyers went after ReplayTV for their "commercial advance" feature.</description>
		<content:encoded><![CDATA[<p>If wonder if Dr. Kenrick was sued into oblivion in the same way media lawyers went after ReplayTV for their &#8220;commercial advance&#8221; feature.</p>
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	<item>
		<title>By: nlpnt</title>
		<link>http://blog.modernmechanix.com/2007/10/22/device-shuts-off-radio-advertising-tunes-in-music/#comment-632668</link>
		<dc:creator>nlpnt</dc:creator>
		<pubDate>Tue, 23 Oct 2007 01:15:35 +0000</pubDate>
		<guid isPermaLink="false">http://blog.modernmechanix.com/2007/10/22/device-shuts-off-radio-advertising-tunes-in-music/#comment-632668</guid>
		<description>I don't mind manually hitting the mute button, but an automatic device to kick the radio or TV OUT of mute at the end of the commercials would be nice.</description>
		<content:encoded><![CDATA[<p>I don&#8217;t mind manually hitting the mute button, but an automatic device to kick the radio or TV OUT of mute at the end of the commercials would be nice.</p>
]]></content:encoded>
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	<item>
		<title>By: Dee</title>
		<link>http://blog.modernmechanix.com/2007/10/22/device-shuts-off-radio-advertising-tunes-in-music/#comment-631318</link>
		<dc:creator>Dee</dc:creator>
		<pubDate>Mon, 22 Oct 2007 16:17:10 +0000</pubDate>
		<guid isPermaLink="false">http://blog.modernmechanix.com/2007/10/22/device-shuts-off-radio-advertising-tunes-in-music/#comment-631318</guid>
		<description>I want one !</description>
		<content:encoded><![CDATA[<p>I want one !</p>
]]></content:encoded>
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	<item>
		<title>By: mrchurchill109</title>
		<link>http://blog.modernmechanix.com/2007/10/22/device-shuts-off-radio-advertising-tunes-in-music/#comment-631236</link>
		<dc:creator>mrchurchill109</dc:creator>
		<pubDate>Mon, 22 Oct 2007 15:48:43 +0000</pubDate>
		<guid isPermaLink="false">http://blog.modernmechanix.com/2007/10/22/device-shuts-off-radio-advertising-tunes-in-music/#comment-631236</guid>
		<description>Actually, It's more or less doable. More than going after a certain frequency I'd be more inclined to believe it went after a certain average amplitude in the incoming signal - commercials would be "louder" than the typical programming, so it would sense that and off it went.

I've seen similar circuits used for automatic level controls back in the Dark Ages...8)

         Alan</description>
		<content:encoded><![CDATA[<p>Actually, It&#8217;s more or less doable. More than going after a certain frequency I&#8217;d be more inclined to believe it went after a certain average amplitude in the incoming signal - commercials would be &#8220;louder&#8221; than the typical programming, so it would sense that and off it went.</p>
<p>I&#8217;ve seen similar circuits used for automatic level controls back in the Dark Ages&#8230;8)</p>
<p>         Alan</p>
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