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'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.
Jurgen
On Fri, May 28, 2010 at 1:47 AM, patrick puredata@11h11.com wrote:
hi everyone,
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.
my microphone is not that noisy (for a diy 6$ microphone): http://www.workinprogress.ca/electret-microphone-amplifier/
but the environment is (computer fan for example).
pat
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