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	<title>Comments on: Noise cancelling headphones</title>
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	<link>http://hackaday.com/2005/09/09/noise-cancelling-headphones/</link>
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	<item>
		<title>By: Angel</title>
		<link>http://hackaday.com/2005/09/09/noise-cancelling-headphones/comment-page-1/#comment-356892</link>
		<dc:creator><![CDATA[Angel]]></dc:creator>
		<pubDate>Sun, 13 Mar 2011 07:32:08 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2005/09/09/noise-cancelling-headphones/#comment-356892</guid>
		<description><![CDATA[So teach me how to make my own &quot;turtle beach&quot;
I pretty much want to know how to make my own gaming headset.
I need a diagram/blueprint/a schematic design or something.]]></description>
		<content:encoded><![CDATA[<p>So teach me how to make my own &#8220;turtle beach&#8221;<br />
I pretty much want to know how to make my own gaming headset.<br />
I need a diagram/blueprint/a schematic design or something.</p>
]]></content:encoded>
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	<item>
		<title>By: supermorph</title>
		<link>http://hackaday.com/2005/09/09/noise-cancelling-headphones/comment-page-1/#comment-196218</link>
		<dc:creator><![CDATA[supermorph]]></dc:creator>
		<pubDate>Wed, 13 Oct 2010 12:38:54 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2005/09/09/noise-cancelling-headphones/#comment-196218</guid>
		<description><![CDATA[hi, i bought a hd projector from ebay, recieved it yesterday, the fans are very noisy, can i produce some sort of kit to cancel the noise generated by the fans?

if so, i would need help.

thanks 
supermorph]]></description>
		<content:encoded><![CDATA[<p>hi, i bought a hd projector from ebay, recieved it yesterday, the fans are very noisy, can i produce some sort of kit to cancel the noise generated by the fans?</p>
<p>if so, i would need help.</p>
<p>thanks<br />
supermorph</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Adit lessai aceh</title>
		<link>http://hackaday.com/2005/09/09/noise-cancelling-headphones/comment-page-1/#comment-159299</link>
		<dc:creator><![CDATA[Adit lessai aceh]]></dc:creator>
		<pubDate>Fri, 16 Jul 2010 05:15:00 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2005/09/09/noise-cancelling-headphones/#comment-159299</guid>
		<description><![CDATA[Have you the simple headphone amp. Using just only 3v batt?
Thx much]]></description>
		<content:encoded><![CDATA[<p>Have you the simple headphone amp. Using just only 3v batt?<br />
Thx much</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Augusta Sinard</title>
		<link>http://hackaday.com/2005/09/09/noise-cancelling-headphones/comment-page-1/#comment-114824</link>
		<dc:creator><![CDATA[Augusta Sinard]]></dc:creator>
		<pubDate>Mon, 04 Jan 2010 18:35:49 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2005/09/09/noise-cancelling-headphones/#comment-114824</guid>
		<description><![CDATA[I agree with the above post. Personally I cannot understand why you would not want to make an effort in this regard anyway. Only the other day, at work we had exactly the same conversation and came to a similar decision]]></description>
		<content:encoded><![CDATA[<p>I agree with the above post. Personally I cannot understand why you would not want to make an effort in this regard anyway. Only the other day, at work we had exactly the same conversation and came to a similar decision</p>
]]></content:encoded>
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	<item>
		<title>By: dr dre headphones</title>
		<link>http://hackaday.com/2005/09/09/noise-cancelling-headphones/comment-page-1/#comment-114545</link>
		<dc:creator><![CDATA[dr dre headphones]]></dc:creator>
		<pubDate>Sat, 02 Jan 2010 21:49:41 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2005/09/09/noise-cancelling-headphones/#comment-114545</guid>
		<description><![CDATA[Thanks for the info! Right now I am really into the new Dr Dre Headphones. I was considering building some myself, but I just like the style of the dre headphones.]]></description>
		<content:encoded><![CDATA[<p>Thanks for the info! Right now I am really into the new Dr Dre Headphones. I was considering building some myself, but I just like the style of the dre headphones.</p>
]]></content:encoded>
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	<item>
		<title>By: SkullCandy Headphones</title>
		<link>http://hackaday.com/2005/09/09/noise-cancelling-headphones/comment-page-1/#comment-113309</link>
		<dc:creator><![CDATA[SkullCandy Headphones]]></dc:creator>
		<pubDate>Fri, 25 Dec 2009 13:09:45 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2005/09/09/noise-cancelling-headphones/#comment-113309</guid>
		<description><![CDATA[Thank you for sharing great tips. I love noise canceling headphones. Especially SkullCandy]]></description>
		<content:encoded><![CDATA[<p>Thank you for sharing great tips. I love noise canceling headphones. Especially SkullCandy</p>
]]></content:encoded>
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		<title>By: Sennheiser Headphones</title>
		<link>http://hackaday.com/2005/09/09/noise-cancelling-headphones/comment-page-1/#comment-113308</link>
		<dc:creator><![CDATA[Sennheiser Headphones]]></dc:creator>
		<pubDate>Fri, 25 Dec 2009 13:07:31 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2005/09/09/noise-cancelling-headphones/#comment-113308</guid>
		<description><![CDATA[This is a great tip about noise-canceling. I find it useful to apply with my audio equipments. I have some pairs of Sennheiser and Skullcandy. I will certainly find it useful to apply with my headphones.]]></description>
		<content:encoded><![CDATA[<p>This is a great tip about noise-canceling. I find it useful to apply with my audio equipments. I have some pairs of Sennheiser and Skullcandy. I will certainly find it useful to apply with my headphones.</p>
]]></content:encoded>
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	<item>
		<title>By: Kristeen Ambriz</title>
		<link>http://hackaday.com/2005/09/09/noise-cancelling-headphones/comment-page-1/#comment-111489</link>
		<dc:creator><![CDATA[Kristeen Ambriz]]></dc:creator>
		<pubDate>Sat, 12 Dec 2009 15:38:07 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2005/09/09/noise-cancelling-headphones/#comment-111489</guid>
		<description><![CDATA[Advantageously, the post is in reality the best on this worthw hile topic. I harmonize with your conclusions and will thirstily look forward to your incoming updates. Just saying thanks will not just be adequate, for the wonderful clarity in your writing. I will immediately grab your rss feed to stay abreast of any updates. Good work and much success in your business dealings!]]></description>
		<content:encoded><![CDATA[<p>Advantageously, the post is in reality the best on this worthw hile topic. I harmonize with your conclusions and will thirstily look forward to your incoming updates. Just saying thanks will not just be adequate, for the wonderful clarity in your writing. I will immediately grab your rss feed to stay abreast of any updates. Good work and much success in your business dealings!</p>
]]></content:encoded>
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	<item>
		<title>By: Ruhande Mohammad</title>
		<link>http://hackaday.com/2005/09/09/noise-cancelling-headphones/comment-page-1/#comment-56154</link>
		<dc:creator><![CDATA[Ruhande Mohammad]]></dc:creator>
		<pubDate>Mon, 22 Dec 2008 09:01:23 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2005/09/09/noise-cancelling-headphones/#comment-56154</guid>
		<description><![CDATA[I am Mohammad Ruhande managing director of an investigating company in Iran .
I invite a system for the first time in the world which could annihilate any voice with no limitation &amp; this is an economical system .
If you are intrested in cooperating with me &amp; performing this plan through the whole world please inform me until Dec.30 .
I am waiting for your prompt replay .
Tell : +987116359367
Fax  : +987116359368]]></description>
		<content:encoded><![CDATA[<p>I am Mohammad Ruhande managing director of an investigating company in Iran .<br />
I invite a system for the first time in the world which could annihilate any voice with no limitation &amp; this is an economical system .<br />
If you are intrested in cooperating with me &amp; performing this plan through the whole world please inform me until Dec.30 .<br />
I am waiting for your prompt replay .<br />
Tell : +987116359367<br />
Fax  : +987116359368</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: andy</title>
		<link>http://hackaday.com/2005/09/09/noise-cancelling-headphones/comment-page-1/#comment-47549</link>
		<dc:creator><![CDATA[andy]]></dc:creator>
		<pubDate>Fri, 24 Oct 2008 15:28:46 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2005/09/09/noise-cancelling-headphones/#comment-47549</guid>
		<description><![CDATA[William - did you get anywhere with this?  I could do with a set up EXACTLY the same as you&#039;re after - any hints?]]></description>
		<content:encoded><![CDATA[<p>William &#8211; did you get anywhere with this?  I could do with a set up EXACTLY the same as you&#8217;re after &#8211; any hints?</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: william m</title>
		<link>http://hackaday.com/2005/09/09/noise-cancelling-headphones/comment-page-1/#comment-11469</link>
		<dc:creator><![CDATA[william m]]></dc:creator>
		<pubDate>Wed, 09 Apr 2008 14:42:45 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2005/09/09/noise-cancelling-headphones/#comment-11469</guid>
		<description><![CDATA[I&#039;m looking for cancellation of industrial noise coming from outside the house.  I envision a microphone outside picking up the source noise, connected to a pc in the house running software to cancel the noise.  The inverse noise would be broadcast by speakers in the room -- so I could sleep without earplugs or headphones.  The source noise is from compressors or diesel engines and is very constant/unchanging.  Any ideas? The scenario seems identical to noise cancelling headphones:  The mic is external, the cancelling noise is produced in an area isolated from the source.  (My room is equivalent to the inside of the earphones.)  I would think this could be a useful and popular application.]]></description>
		<content:encoded><![CDATA[<p>I&#8217;m looking for cancellation of industrial noise coming from outside the house.  I envision a microphone outside picking up the source noise, connected to a pc in the house running software to cancel the noise.  The inverse noise would be broadcast by speakers in the room &#8212; so I could sleep without earplugs or headphones.  The source noise is from compressors or diesel engines and is very constant/unchanging.  Any ideas? The scenario seems identical to noise cancelling headphones:  The mic is external, the cancelling noise is produced in an area isolated from the source.  (My room is equivalent to the inside of the earphones.)  I would think this could be a useful and popular application.</p>
]]></content:encoded>
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	<item>
		<title>By: HiFi Headphones</title>
		<link>http://hackaday.com/2005/09/09/noise-cancelling-headphones/comment-page-1/#comment-11468</link>
		<dc:creator><![CDATA[HiFi Headphones]]></dc:creator>
		<pubDate>Tue, 11 Dec 2007 02:59:46 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2005/09/09/noise-cancelling-headphones/#comment-11468</guid>
		<description><![CDATA[Incredible... what an idea!  A DIY pair of noise canceling headphones!&lt;br&gt;&lt;br&gt;To be honest I&#039;d go with a pre-built pair of noise cancelling headphones from Sennheiser (&lt;a href=&quot;http://www.hifiheadphones.co.uk/sennheiser-man-17.html&quot; rel=&quot;nofollow&quot;&gt;http://www.hifiheadphones.co.uk/sennheiser-man-17.html&lt;/a&gt;) or Audio Technica (&lt;a href=&quot;http://www.hifiheadphones.co.uk/audio-technica-man-18.html&quot; rel=&quot;nofollow&quot;&gt;http://www.hifiheadphones.co.uk/audio-technica-man-18.html&lt;/a&gt;)&lt;br&gt;&lt;br&gt;It seems like a LOT of hassle to build them yourself! :)]]></description>
		<content:encoded><![CDATA[<p>Incredible&#8230; what an idea!  A DIY pair of noise canceling headphones!</p>
<p>To be honest I&#8217;d go with a pre-built pair of noise cancelling headphones from Sennheiser (<a href="http://www.hifiheadphones.co.uk/sennheiser-man-17.html" rel="nofollow">http://www.hifiheadphones.co.uk/sennheiser-man-17.html</a>) or Audio Technica (<a href="http://www.hifiheadphones.co.uk/audio-technica-man-18.html" rel="nofollow">http://www.hifiheadphones.co.uk/audio-technica-man-18.html</a>)</p>
<p>It seems like a LOT of hassle to build them yourself! :)</p>
]]></content:encoded>
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	<item>
		<title>By: Erik</title>
		<link>http://hackaday.com/2005/09/09/noise-cancelling-headphones/comment-page-1/#comment-11467</link>
		<dc:creator><![CDATA[Erik]]></dc:creator>
		<pubDate>Tue, 11 Dec 2007 02:31:54 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2005/09/09/noise-cancelling-headphones/#comment-11467</guid>
		<description><![CDATA[Incredible... what an idea! A DIY pair of noise canceling headphones!  To be honest i&#039;d stick with a pre-built pair of noise cancelling headphones from sennheiser or Audio echnica.&lt;br&gt;&lt;br&gt;It seems like a LOT of hassle to build them yourself! :)]]></description>
		<content:encoded><![CDATA[<p>Incredible&#8230; what an idea! A DIY pair of noise canceling headphones!  To be honest i&#8217;d stick with a pre-built pair of noise cancelling headphones from sennheiser or Audio echnica.</p>
<p>It seems like a LOT of hassle to build them yourself! :)</p>
]]></content:encoded>
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	<item>
		<title>By: Jessica</title>
		<link>http://hackaday.com/2005/09/09/noise-cancelling-headphones/comment-page-1/#comment-11466</link>
		<dc:creator><![CDATA[Jessica]]></dc:creator>
		<pubDate>Mon, 29 Oct 2007 19:02:10 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2005/09/09/noise-cancelling-headphones/#comment-11466</guid>
		<description><![CDATA[Hi, was wondering if anybody here could help me modify my current Skullcandy Skullcrusher to add some noise cancellation technology.&lt;br&gt;&lt;br&gt;I love em for the bass, but I can hear everything. I have some old Sony MDR NC 20 I don&#039;t like and wouldn&#039;t mind dismantling.&lt;br&gt;&lt;br&gt;My skullcrushers have a compartement for 1AA battery already for the subwoofer technology.&lt;br&gt;&lt;br&gt;Could anybody help me with figuring out how to hack my current skullcrushers with the noise cancellation technology from my sony&#039;s to make the ultimate pair of headphones?&lt;br&gt;&lt;br&gt;thanks for the help!!&lt;br&gt;&lt;br&gt;write me back with a relevant email title (so I know it&#039;s not junk mail)&lt;br&gt;cool_jessica@hotmail.com]]></description>
		<content:encoded><![CDATA[<p>Hi, was wondering if anybody here could help me modify my current Skullcandy Skullcrusher to add some noise cancellation technology.</p>
<p>I love em for the bass, but I can hear everything. I have some old Sony MDR NC 20 I don&#8217;t like and wouldn&#8217;t mind dismantling.</p>
<p>My skullcrushers have a compartement for 1AA battery already for the subwoofer technology.</p>
<p>Could anybody help me with figuring out how to hack my current skullcrushers with the noise cancellation technology from my sony&#8217;s to make the ultimate pair of headphones?</p>
<p>thanks for the help!!</p>
<p>write me back with a relevant email title (so I know it&#8217;s not junk mail)<br /><a href="mailto:cool_jessica@hotmail.com">cool_jessica@hotmail.com</a></p>
]]></content:encoded>
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	<item>
		<title>By: andy</title>
		<link>http://hackaday.com/2005/09/09/noise-cancelling-headphones/comment-page-1/#comment-11457</link>
		<dc:creator><![CDATA[andy]]></dc:creator>
		<pubDate>Wed, 21 Sep 2005 19:21:16 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2005/09/09/noise-cancelling-headphones/#comment-11457</guid>
		<description><![CDATA[I&#039;ve built these headphones using the Ryckebush circuit before.  (about 4 years ago...)  They worked great initially, but the battery life was horrendous, the box was ugly and HUGE (not fun in airports, I never tried to use the headphones on an airplane again after 9/11 happened, since I wanted to actually be able to get through security.), and after 2 airplane flights it stopped working reliably.

It cost me over $40-50 for the parts IN ADDITION to a pair of headphones themselves and went through $3-4 of batteries every 2-3 hours.

When I first built them, ANC headphones available on the market were all extremely expensive, and the homemade ones were cheaper.  This is no longer true.

It&#039;s a far better idea to buy a pair of Philips HN100s or HN110s off of eBay - I bought mine for $15 *including* shipping, and they blow away my homemade ones in every regard.  Battery life off of a single AAA (instead of a pair of 9vs) is insanely long, the cancellation is better, and the unit is far more compact.]]></description>
		<content:encoded><![CDATA[<p>I&#8217;ve built these headphones using the Ryckebush circuit before.  (about 4 years ago&#8230;)  They worked great initially, but the battery life was horrendous, the box was ugly and HUGE (not fun in airports, I never tried to use the headphones on an airplane again after 9/11 happened, since I wanted to actually be able to get through security.), and after 2 airplane flights it stopped working reliably.</p>
<p>It cost me over $40-50 for the parts IN ADDITION to a pair of headphones themselves and went through $3-4 of batteries every 2-3 hours.</p>
<p>When I first built them, ANC headphones available on the market were all extremely expensive, and the homemade ones were cheaper.  This is no longer true.</p>
<p>It&#8217;s a far better idea to buy a pair of Philips HN100s or HN110s off of eBay &#8211; I bought mine for $15 *including* shipping, and they blow away my homemade ones in every regard.  Battery life off of a single AAA (instead of a pair of 9vs) is insanely long, the cancellation is better, and the unit is far more compact.</p>
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