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Thread: ANR Headsets
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Old 17th May 2001 | 01:53
  #21 (permalink)  
BayAreaLondoner
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The Lightspeed website actually has a rather good explanation as to how ANR works.
http://www.anrheadsets.com/anr-tutorial.html

I've found that engine "roar and rumble" is what is cancelled rather than squeaks, pops, etc.

David.