Website with numerous articles, schematics, sound samples, technical information on DC- to ultra-ultra low radio and energy below 22 kHz.
BY SUSAN MILLER APR 30, 2018 The National Geospatial-Intelligence Agency wants to map the world's ambient sounds. The NGA Research Directorate’s Environment and Culture pod wants to...
https://www.youtube.com/watch?v=juA98y_nMv0 Eddie Van Halen famous guitar sound. How it was achieved.