Arc Angel IV

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Jul 28, 2012
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Hi, I've ordered a new graphics card and want to be sure it's going to be quiet. I have ordered the aftermarket Gigabyte GTX 670 and apparently at idle, the cards sound is 30,7 decibels and at peak it is 37,8 decibels. Now I know around 20 decibels is around whisper quiet, so do you think this card will be noticeable in a relatively quiet system?
 

michaeljhuman

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Jul 28, 2012
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Just remember, you should not talk about decibels naked. It's 1 tenth of a bel ( named after the famous inventor,) and it's only meaningful with a unit of measurement.

You want to say dB SPL for sound pressure. The dB just indicates that it's a logarithmic scale where the value is compared to a reference value. SPL indicates what the reference value is, and what's being measured.
 


Exactly. It's a measure of gain or loss relative to a reference point
 

michaeljhuman

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Jul 28, 2012
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What I find interesting, is all the odd looking db scales. They date back to the early days of telephone signals, which I guess would explain why they deal with stuff like 600 ohm resistances.
 


I know exactly what you mean. Prior to about the 1960s the world had a million different ways of doing the same thing, nothing was standardized. If you ever get the chance to do so, take a look at some of the instruments on a world war II ship.