[Scott Dorsey]

In article , 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?

Unknown, unless you know what methods were used under what conditions. This
is one of the things that is not at all standardized.

Now... if they are both from the same manufacturer then you can expect that
the noise will be perceptually 5dB higher on one microphone than the other.
Electrically? You don't know and you can't even really guess without knowing
the spectrum of the noise since the dBA measurement is very heavily weighted.
--scott


--
"C'est un Nagra. C'est suisse, et tres, tres precis."