Most clinical OAE software packets have built-in functions to evaluate the quality of the fit of the probe in the ear canal. Probe fit is typically assessed with an analysis of the response to a broadband signal presented to the ear canal. Specific acoustic features are then identified to detect a leak in the fit of the probe, a blocked probe, or other anomalous conditions. The clinician is immediately given visual feedback about the problem, and further data collection is prevented by the software