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Do noise-cancelling headphones use spatial or temporal interference?

  1. Mar 3, 2013 #1
    1. The problem statement, all variables and given/known data

    Do noise-cancelling headphones use spatial or temporal interference?

    2. Relevant equations



    3. The attempt at a solution

    They use spatial interference, right? Temporal interference would cause beats which is not noise-cancelling.
     
  2. jcsd
  3. Mar 3, 2013 #2

    berkeman

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    Staff: Mentor

    Could you please provide definitions for those two kinds of interference? And maybe give some examples of where they occur? They are equivalent in some situations, and you need to think about how headphones modify the sound sensing environment...
     
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