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5. Re: iRig pre

Subject: 5. Re: iRig pre
From: "Raimund" animalsounds
Date: Thu Jan 3, 2013 8:15 am ((PST))
> Many thanks for your clarification. Am I also wrong about noise increasin=
g on the iRig as gain is increased?

Hi Max,

Yes, that is also wrong: Increasing the gain on a typical preamp usually re=
duces the input-referenced noise floor (in comparison to the microphone sel=
f noise).

But you are of course correct that increasing the gain will indeed increase=
 the output-referenced noise level of the preamplifier. For that reason it =
would be really useful to keep the gain as low as possible in order to mini=
mize the subjective noise floor in a recording. That lower gain would howev=
er also reduce the (dBFS) signal level in the recording, which can only be =
compensated by getting closer to sound source.

In other words, it is possible to make excellent recordings using noisy mic=
rophones and poor preamplifiers as long as you managed to get close enough =
to the singing bird or whatever you want to record.

Cheers,
Raimund







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