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1. ffarias
   

   Member
   Joined: May '14
   Posts: 9

   Do you know where could I get the power law absorption coefficients for air? I have been looking for a while but I can't get them. In Blackstock's fundamentals of physiscal acoustics books there's a graph where you could get some values, but they can't fit in the formula you use.

   I know it has been asked before, but I still can't get reliable values.

   Kind regards

   Felipe.

   Posted 10 years ago #

2. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Hi Felipe,

   PiesangBrood2000 suggested this link from NPL which seems to have some relevant parameters.

   Brad.

   Posted 10 years ago #

3. ffarias
   

   Member
   Joined: May '14
   Posts: 9

   Thank you, I will try those parameters, although the absorption in air curve changes a couple of times in higher frequencies.
   Thank you again!

   Posted 10 years ago #

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