Arrangement for the transmission of audio signals

An arrangement for the transmission of audio signals comprising, at least one delay line provided with an input, an output and (2k+1) tappings (k being an integer and 2.ltoreq.k.ltoreq.4), said tappings being situated at equal time intervals (t.sub.1) and each connected to a common adding circuit via a first amplitude control device, the first amplitude control devices being connected to tappings situated symmetrically realtive to a central tapping so that the output signals of said first amplitude control devices have equal amplitude values and the phase shifts in the first amplitude control devices are the same, but the phase shift in one of every two of said first amplitude control devices situated at equal odd multiples of the time interval (t.sub.1) from the central tapping differ by 180.degree. from that in the other and the amplitudes of said signals are selected so that the transmission by the arrangement is at least substantially frequency-independent, characterized in that when an index x (x being an integer.ltoreq.k+1) is assigned to a number of tappings of the delay line with the index 1 being assigned to one of the extreme tappings, and consecutive indices being assigned to consecutive adjacent tappings, proceeding from said extreme tapping to the central tapping, with the highest index assigned to the central tapping, the ratios between the output signals of the amplitude control devices A.sub.x associated with said tappings, including their signs, satisfy the equation A.sub.1 :A.sub.2 :A.sub.3 :A.sub.4 :A.sub.5 =1:2n:2n.sup.2 :n.sup.3 -n:1/4(n.sup.4 =1)-2n.sup.2.