EDIT CODE

Control amplitude of audio sine wave with x position of mouse/pointer and control frequency of measured noise with the y position of the mouse/pointer. Click screen to toggle audio white noise generator on PC speakers.

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$$ V_{audio}(t) = V_{peak}\sin{(2\pi f_{audio} t)} $$ $$ P = G\left(P_{sys} + \left( \frac{eV_{audio}(t) + hf_{RF}}{4}\right)\coth{\left( \frac{eV_{audio}(t) + hf_{RF}}{2k_B T}\right)} + \left( \frac{eV_{audio}(t) - hf_{RF}}{4}\right)\coth{\left( \frac{eV_{audio}(t) - hf_{RF}}{2k_B T}\right)}\right) $$