If a microphone has an output voltage of 1.45mV @ 1 Pa and a microphone preamplifier adds 50dB of gain, what would the voltage at the output of the mic pre be, assuming the pressure applied to the diaphragm never changes?
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2What have you tried? Do you know what 50 dB is as a ratio? Do you know what it is a ratio of? We don't accept unattempted homework problems here, so you'll need to do at least some of this yourself. – Chris Stratton Dec 18 '20 at 01:08
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Zero. If the pressure never changes there is no sound. – Dec 18 '20 at 01:14
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Chris Stratton, it's not a homework problem. – Lamar Bryant Dec 18 '20 at 01:36