# Random Signal and Noise Calculation

Random signals are random variables which evolve, often with
time (e.g. audio noise), but also with distance (e.g. intensity
in an image of a random texture), or sometimes another
parameter.This calculator is used to calculate RMS noise voltage.

Random signals are random variables which evolve, often with
time (e.g. audio noise), but also with distance (e.g. intensity
in an image of a random texture), or sometimes another
parameter.This calculator is used to calculate RMS noise voltage.

Code to add this calci to your website

#### Formula for the RMS noise voltage:

Vn =sqrt( 4 * kB * T *If *R )
**where, **
Lu in dBu has the reference voltage V0 = 0.7746
and LV in dBV has the reference voltage V0 = 1 V
Boltzmann constant k_{B} = 1.3806505*10^{-23} J/K (joule/kelvin); J=W·s
Absolute temperature in kelvin T = 273.15
Bandwidth being considered .If = f2 - f1 = fmax - fmin in Hz; 20 kHz - 20 Hz = 19980 Hz
Resistance of the circuit element R.
R does not mean the universal gas constant!
This calculator calculates the RMS Noise voltage and Noise Level.