Patent ID: 8094826

Claim:
A method for equalizing a first loudspeaker (L 1 ) positioned in a room in order to compensate for an influence of the room, the method comprising the steps of 1) measuring a listening position transfer function (L) from electrical input of the first loudspeaker (L 1 ) to a sound pressure at a listening position (LP) in the room, 2) determining a global transfer function (G) representing a spatial average of sound pressure level in the room generated by the first loudspeaker (L 1 ), 3) determining an upper gain limit (UGL) as a function of frequency, the upper gain limit (UGL) being based on an inverse of the global transfer function (G), 4) determining an equalizing filter (F) based on an inverse of the listening position transfer function (L), wherein a gain of the equalizing filter (F) is limited to a maximum gain in accordance with the upper gain limit (UGL), and 5) equalizing the first loudspeaker (L 1 ) according to the equalizing filter (F).