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How to relate power and sound give some formulas 
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#1
Mar110, 09:08 PM

P: 10

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
Mar210, 12:40 PM

P: 5,632

It is done billions of times everyday in a telephone....and audio recording devices...
Try here: http://en.wikipedia.org/wiki/Sound 


#3
Mar210, 01:18 PM

P: 4,663

Use this online calculator to convert SPL (sound power level) in dB to watts per square meter. See
http://www.sengpielaudio.com/calculatorsoundlevel.htm Bob S 


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