Explain the difference between A-weighting and C-weighting in the context of noise measurement, and describe a scenario where each would be more appropriate.

A-weighting and C-weighting are two different frequency weighting systems used in sound level measurements. These weightings are applied to measured sound levels to approximate the sensitivity of the human ear at different frequencies. They are implemented electronically within sound level meters and noise dosimeters. A-weighting, often designated as dBA, is designed to mimic the human ear's sensitivity at moderate sound pressure levels. The human ear is not equally sensitive to all frequencies of sound; it is most sensitive to frequencies in the mid-range (around 1 kHz to 4 kHz) and less sensitive to very low and very high frequencies. A-weighting significantly attenuates low-frequency sound, which the ear perceives as less loud, and provides a more accurate reflection of the perceived loudness of most common sounds. It is very widely used, and most regulatory standards for occupational noise use A-weighted measurements. For example, when measu....