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How to relate power and sound give some formulas

by exilus29
Tags: formulas, power, relate, sound
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Mar1-10, 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
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Mar2-10, 12:40 PM
P: 5,632
It is done billions of times everyday in a telephone....and audio recording devices...

Try here:
Bob S
Mar2-10, 01:18 PM
P: 4,663
Use this online calculator to convert SPL (sound power level) in dB to watts per square meter. See

Bob S

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