MICROPHONES Russian patent published in 2023 - IPC H04R19/04 

FIELD: acoustics.

SUBSTANCE: microphone consisting of a transducer configured to convert an audio signal into an electrical signal; and an acoustic structure including a guiding sound channel and an acoustic cavity, wherein the acoustic cavity is acoustically connected to at least one above-mentioned acoustoelectric transducer and is acoustically connected to the external environment of the microphone through the guiding sound channel, the acoustic structure having a first resonant frequency by at least one above-mentioned acoustoelectric transducer has a second resonant frequency and the absolute value of the difference between the first resonant frequency and the second resonant frequency is not less than 100 Hz.

EFFECT: increase in the quality factor and sensitivity of the microphone.

11 cl, 22 dwg