[Tobiah]

On 12/23/19 9:42 AM, Mike Rivers wrote:
On 12/23/2019 12:29 PM, Tobiah wrote:
Say one mic has a self-noise figure of 5dBA, and another is 10dBA.
How much louder is the noise going to be from the second mic, both
electrically and perceptually?

Well, 5 dB different, in theory one being almost twice as noisy as
the other. But those are pretty low noise figures. You'd need a good
bit of gain in order to hear the mic noise at all.



The magnitude of the numbers was arbitrary. Doesn't some sort of
logarithm come in to play with dB? I remember something about xdB being
perceptually twice as loud as ydB, but I didn't think that y/x == 2.