How to relate power and sound give some formulas

  1. can some1 teach me some formula on how to relate power(mW/W) to sound(dBv/dBSPL)?i need some formula about this two topics and relate them because we are having a feasibility study on how to convert sound to electricity and we need some formulas,i know its kind a hard to transform sound to electricity but we really need some help..hope many of you would reply need some feedback asap
     
  2. jcsd
  3. It is done billions of times everyday in a telephone....and audio recording devices...

    Try here:
    http://en.wikipedia.org/wiki/Sound
     
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