The invention describes a method of determining the distance (d12) between two loudspeakers (L1, L2), wherein the method comprises the steps of providing a test
signal (N), combining the test
signal (N) with a sound
signal (S) to give a combined signal (SN) in which the test signal is imperceptible to a listener (4), and issuing the combined signal (SN) by means of a first
loudspeaker (L1). The combined signal (SN) is detected by a detecting means (M2) associated with the second
loudspeaker (L2) and processed to obtain an acoustic
impulse response (IR), which is used to determine the distance (d1,2) between the first
loudspeaker (L1) and the second loudspeaker (L2). The invention further describes a
system (1) for determining the distance (d1,2) between two loudspeakers (L1, L2) and an acoustic
sound system, comprising a number of loudspeakers (L1, L2, . . . , Lk) for
reproduction of multi-channel sound, and a
system (1) for determining the distances (d1,2, d2,3, . . . , dk-i,k) between the loudspeakers (L1, L2, . . . , Lk) in order to automatically configure the loudspeakers (L1, L2, . . . , Lk) for that acoustic
sound system.