City of New Sharon, IA 50207. Sharon, Iowa â better known as â New Sharon, Iowa was developed in 1856 and occupies approximately one square mile in Mahaska county.
3 11mbre is the distinguishing quality of a sound. It is the dimension of auditory experience reÂ­. lated to the complexity of the sound wave-to the. relative breadth of the range of frequencies that. make up the wave. A pure tone consists of only one. frequency, but in nature, pure tones are extremely. rare.
Noise is defined in terms of frequency spectrum (in Hz), intensity (in dB), and time duration. Noise can be steady-state, intermittent, impulsive, or explosive. Transient hearing loss may occur following exposure to loud noise, resulting in a temporary threshold shift (i.e. a shift in the audible threshold). With regard to acoustic noise associated with MR imaging, Brummett, et al.