Part 1 of this DI uses an electret mic to create infrasound. It starts with a basic equalization circuit validated with a DIY test fixture and simulations, and ends with a deeper analysis of the ...

The software defined radio has opened up unimaginable uses of the radio spectrum for radio enthusiasts, but it’s fair to say that there’s one useful feature of an old-fashioned radio they lack ...

The electret microphone, invented by Sessler and ... costs by integrating a complete systems solution on an integrated circuit. This paper describes some fundamental MEMS microphone design issues. An ...

The goal of this project is to provide precise tonal adjustments, combine multiple audio sources with minimal distortion, and amplify microphone inputs with clear signal integrity. SPICE simulations ...