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.
Quick Answer. The decibel range for a normal human speaking voice is around 70 dB. When a person is talking in an elevated voice, the decibel range is around 76 dB. An individual who talks very loudly would have a decibel range of around 82 dB, while someone who shouts would reach levels of around 88 dB.