How does microphone gain work
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Microphones don’t really have gain. Microphones turn sound into an electronic signal. Different types of microphones or other audio equipment produce signals of varying strength.
Gain describes by how much a signal is amplified. For instance, mixing boards amplify input signals before passing them through EQ and effect filters. The idea is that you adjust preamplifier gain so that all the various input signals enter the mixer at the same strength relative to each other. This makes filtering and mixing way easier because all the signals emerge from their filters at roughly the same amplitude, after which each channel’s volume can again be adjusted for desired effect.
Preamplification normalizes input signal strength so that the final mix makes most efficient use of the system’s final output amplifier.
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