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Sound down a tube (eg shotgun mic)

  1. Dec 22, 2011 #1
    I want to be able to figure out how sound works down a tube.

    Leading to me being able to calculate where I should place slits on a tube and at what size given a tube diameter (and length if necessary) to make a good shotgun mic tube.

    The slits allow wave cancellation.

    So there is some internal reflection and also diffraction going on.. would like some kind of pointer on this.


    edit: did find this stating slit pattern is not important, but diameter is. Etc.

    http://bioacoustics.cse.unsw.edu.au/archives/html/naturerecordists/2004-04/msg00143.html
     
    Last edited: Dec 22, 2011
  2. jcsd
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