An example method includes controlling an audio source to generate a test tone, controlling a plurality of audio sensors to sense the test tone simultaneously, receiving an output signal from each audio sensor, and determining an acoustic characteristic of each audio sensor based at least in part on the received output signals. The method also includes determining a difference between the acoustic characteristic and a corresponding reference value, identifying at least one audio sensor for which a difference corresponding to the at least one audio sensor is within a predetermined range of the reference value, and generating a compensation factor of the at least one audio sensor based at least in part on the respective output signal of the at least one audio sensor.