Calculate the Decibel Level of a 400µV Microphone Signal

question 7

Short Answer

Calculate the decibel level of a 400µV microphone signal. (Assume a 1mW reference and 150 Ω impedance).

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Definitions:

Standard Deviation

A measure of the dispersion of a set of data from its mean, indicating how spread out the data points are.

Expected Return

The average return an investor anticipates receiving on an investment, considering all potential outcomes.

Expected Return

The potential return on an investment, taking into account both the probability of gains and the risk of loss.

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