Occupational Noise: A-Weighted Vs. C-Weighted Scales
1/25/2021 Often, I have been asked about the noise designations of A-Weighted and C-Weighted measurements. What do these two classifications mean and how do they each relate to our exposures to occupational noise? A-weighting began with the work of two scientists, Harvey Fletcher and Wilden Munson in the 1930’s when they measured the relationship of loudness to frequencies. In their study, headphones were placed on test subjects while listening to pure tones at various frequencies Read more…