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B Units of sound pressure level, example: 120 dB re 20 μPa

  1. Aug 8, 2016 #1
    I am trying to do a calculation using a value of -211dB re uPa/V , are these SI units? i.e.

    if OCV = -211db re uPa/V

    and I have

    RL = 20log(Vrms) - OCV

    Do I need to convert the OCV to standard units before putting it in the equation?

    Wiki isn't so clear about this:

     
  2. jcsd
  3. Aug 8, 2016 #2
    ahhhh its just a reference, you just put in -211
     
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