Quote:
Originally Posted by longjaw
I ain't a techie, here's the article -
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As the article says, +3dB is representitive of a doubling of the amps
power. I does not refer to volume, SPL or loudness at all.
Doubling the amps power or increasing volume by 3dB is not doubling the perceived loudness or volume.
Power and volume do not have a linear relationship.
You need +10dB, or ten times the power, to double the audible loudness.
This is based on much reasearch into the way the human ear perceives volume.
Our ears perceive volume or loudness in a logarithmic fahsion.
That is why 99% percent of amps use audio taper (logarithmic) pots for volume control as opposed to straight linear pots.
Read this article
Sound level change and the factor of loudness formula sound levels volume dependence fold - level dependence decibel 3 dB 6 dB 10 dB voltage sound pressure audio sound intensity acoustic power formula relationship decibels dB twice as loud two times , as it verifies everything I've said. Using the calculator +3dB is 1.23 times louder, whereas +10dB is 2 times louder. This is fact, not my subjective opinion.