Quote:
Originally Posted by got wake?
it is best to not try and correct someone unless you are 100% sure you are correct  decibels are logarithmic, so a 10 dB increase = twice the volume. but what do i know, i've only competed in stereo competitions since i was 16 (11 years now) and was an IASCA judge for several years as well  |
I think I can clear this up. A 3db increase, NOT a 10 db increase, IS actually a doubling of the sound power level logarithmically. However, what you are referring to is the human component, i.e., a human typically perceives a 10db increase as a doubling of the volume.
What is a decibel?
The other thing that is interesting is how humans perceive low tones. A 300 hz tone at 134 db will be perceived as lower in volume than a 2000 hz tone at teh same db level. "A weighting" is typically used to account for this phenomenom.