Re: Is this a good way to test pre-amp hiss of a digital recorder?

From: Pooh Bear <rabbitsfriendsandrelations@xxxxxxxxxxx>
Date: Tue, 06 Jun 2006 22:54:05 +0100

Bob Cain wrote:

------------------------------------------------------------------
The thermal noise of a resistor is equal to:

Vt = sqrt(4kTBR)

where:

Vt = the rms noise voltage
k = Boltzmann's constant 8.617339Ã?10â??5 volts/Kelvin.
T = temperature(Kelvin)
B = noise bandwidth(Hz)
R = resistance
-------------------------------------------------------------------

Uhuh. Boltzmann's constant is 1.38.10^-23

Graham

.

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