Abstract: The disclosure describes a method for a multi-channel speaker system including N speakers. The method may comprise obtaining N! permutations of channel sequence for the N speakers; determining, for each permutation, a voting score that represents the matching degree between the channel sequence indicated in a permutation and a correct channel assignment sequence of the N speakers; selecting the permutation with the highest voting score; and assigning input source channels to the N speakers in the order of the channel sequence indicated in the selected permutation.

Abstract: A method of room calibration comprises measuring a plurality of impulse responses at a plurality of measurement points in a room for each speaker of a plurality of speakers. The method also comprises determining a plurality of transfer functions at the plurality of measurement points for each speaker based on the plurality of impulse responses. Furthermore, the method also comprises weighting and summing the transfer functions to obtain a weighted and summed sound curve for each speaker.