a noise cancelling mic would require 2 capsules, one cardioid pointing the the wanted source (you) and another picking up the opposite direction assuming that&#39;s where the noise is and then phase inverts the 2. as the noise hits both capsules at the same time but at opposite phases it should work quite ok.<div>
<br></div><div>Jurgen<br><br><div class="gmail_quote">On Fri, May 28, 2010 at 1:47 AM, patrick <span dir="ltr">&lt;<a href="mailto:puredata@11h11.com">puredata@11h11.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
hi everyone,<br>
<br>
on the market there is microphone that have a feature called noise cancellation for a better speech quality. this is what i am trying to achieve with pd.<br>
<br>
my microphone is not that noisy (for a diy 6$ microphone):<br>
<a href="http://www.workinprogress.ca/electret-microphone-amplifier/" target="_blank">http://www.workinprogress.ca/electret-microphone-amplifier/</a><br>
<br>
but the environment is (computer fan for example).<br>
<br>
pat<div><div></div><div class="h5"><br>
<br>
_______________________________________________<br>
<a href="mailto:Pd-list@iem.at" target="_blank">Pd-list@iem.at</a> mailing list<br>
UNSUBSCRIBE and account-management -&gt; <a href="http://lists.puredata.info/listinfo/pd-list" target="_blank">http://lists.puredata.info/listinfo/pd-list</a><br>
</div></div></blockquote></div><br></div>