Abstract: A method comprises outputting at least one test signal to a listening environment via a loudspeaker, receiving each of the at least one test signal via a microphone arranged in the listening environment, determining at least one of a position and an orientation of the microphone in the listening environment with respect to the loudspeaker at the time of receipt of each of the at least one test signal, evaluating the test signals received by the microphone, and determining at least one aspect related to at least one transfer function based on the evaluation of the test signal and on at least one of the position and the orientation of the microphone.