Ralphonsicus Messages 47 Reaction score 0 Thread starter Feb 4, 2012 #1 The deciBel is probably the most commonly used unit for sound, but why isn't there an SI unit? Also, what is a logarithmic unit? Thanks.
The deciBel is probably the most commonly used unit for sound, but why isn't there an SI unit? Also, what is a logarithmic unit? Thanks.
torquil Messages 648 Reaction score 2 Feb 4, 2012 #2 Sound are waves of pressure fluctuations, and this is an SI unit for pressure http://en.wikipedia.org/wiki/Pascal_(unit) This explains the logarithwic dB unit: http://en.wikipedia.org/wiki/Decibel
Sound are waves of pressure fluctuations, and this is an SI unit for pressure http://en.wikipedia.org/wiki/Pascal_(unit) This explains the logarithwic dB unit: http://en.wikipedia.org/wiki/Decibel