A person recently asked me what I meant by the term business system.. I thought others might like to know a definition that works for me. A system is a procedure, process, method, or course of action designed to achieve a specific result.
The voiced speech of a typical adult male will have a fundamental frequency from 85 to 180 Hz, and that of a typical adult female from 165 to 255 Hz. Thus, the fundamental frequency of most speech falls below the bottom of the voice frequency band as defined above.
How low can you go? Singer Tim Storms holds the record for the deepest voice of any human being. The man who holds the record for the world's lowest voice can hit notes so low that only animals as massive as elephants are able to hear them. U.S. singer Tim Storms can reach notes as low as G-7 (0.189Hz). That's a remarkable 8 octaves below the lowest G on a piano.