Patent ID: 8041044

Claim:
A method for checking a measuring situation when testing a hearing apparatus in a measuring chamber, comprising: recording a plurality of measurement points at a plurality of measuring frequencies for a frequency response of the hearing apparatus; checking whether the measurement points lie in a predetermined tolerance range; outputting an OK signal if the measurement points are in the predetermined tolerance range; and outputting a fault signal if at least one of the measurement points is outside the predetermined tolerance range, wherein the fault signal indicates a lack of proofness of the measuring chamber if a gradient of a straight line between two of the measurement points exceeds a predetermined first value, wherein the fault signal indicates a lack of proofness of the measuring chamber if one of the measurement points at the lowest measuring frequency is below the predetermined tolerance range and another one of the measurement points at the highest measuring frequency is within the predetermined tolerance range, wherein the fault signal indicates a dirt accumulation at a microphone of the hearing apparatus if a gradient of a straight line between two of the measurement points is less than a predetermined second value, wherein the fault signal indicates a dirt accumulation at a microphone of the hearing apparatus if one of the measurement points at the lowest measuring frequency is within the predetermined tolerance range and another one of the measurement points at the highest measuring frequency is below the predetermined tolerance range.