4.49 occlusion effect. Increase in loudness of conductive signals, usually at frequencies below 2000 Hz, when the external ear(s) are covered. Typically observed in bone-conduction audiometry as an improvement in threshold when an ear is covered with...
4.46 noise-induced hearing loss. Permanent hearing loss which progressively increases (at most frequencies the loss will eventually approach an asymptote) due to cumulative daily or regular exposures to hazardous noise not intense enough to cause immediate...
4.45 noise dose. Percentage of a maximum permissible daily exposure to noise; typically, the combination of the A-weighted Leq and corresponding exposure duration. See also 4.23, 4.32, and A3.22.
Recent Comments