2. Acoustic circuits

As shown by the various numerical examples in the Microphones article [E 5 160] of this treatise, a pressure transducer consisting solely of a mechanoelectrically coupled system can only operate linearly in a very small frequency range. The use of such a transducer as a microphone (or loudspeaker), capable of operating homogeneously across the entire audible spectrum, can only be envisaged after the addition of acoustic circuits perfectly adapted to the desired performance.

These acoustic circuits are mainly made up of elements that generate inertia (inductive effects), compliance (capacitive...