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| Tags: bels, expressed, indb, levels, relate, sound |
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#1
July 23rd 03
posted to sci.physics
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how do sound levels expressed in bels relate to that expressed indb?
google account wrote:
I am buying computer components for my next pc, and I am trying to consider the audio levels of the various components. The problem is that I am not sure how these two different values relate to each other. For example, fans usually have a rating that looks like: Noise: 26dB(A) Whereas the new hardrive has a rating that says: Acoustic - Idle (bels - sound power) 2.5 Is this a really obvious thing, and am I right in guessing that 2.6 bels is the same is 26 dB? Decibel Scale http://scienceworld.wolfram.com/phys...ibelScale.html http://hyperphysics.phy-astr.gsu.edu.../sound/db.html http://hyperphysics.phy-astr.gsu.edu...intens.html#c1 Ref: http://physics.nist.gov/cuu/Units/outside.html The bel is most commonly used with the SI prefix deci: 1 dB = 0.1 B 
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