title: Silverlight - Audio - Loopback
body: <p>How to avoid LoopBack of audio in Silverlight?</p>
  
  <p>I am using silverlight to capture audio and stream it. This works fine when using a headset as a microphone, but when I use the built in microphone and the speaker of the laptop, it loops back and I get an echo. </p>
  
  <p>Any idea on how can I avoid that? And is there any built in classes in Silverlight for Acoustic Noise Cancellation as well?</p>
  
  <p>Thanks</p>