Scalable coder and decoder for a scaled data stream

Scalable encoder for encoding an information signal, comprising: a first encoding means (102) for generating a first scaling layer from the information signal; a decoder means (104) which is formed to decode the first scaling layer to generate an encoded / decoded information signal, wherein a non-linear frequency-dependent phase distortion is introduced by the first encoding means (102) and / or the decoding means (104) to which the encoded / decoded information signal is phase-distorted with respect to the information signal; a comparison device (110) having two inputs (110a, 110b), wherein said comparing means (110) is designed to form a difference signal of a at the first input (110a) which can be applied signal and to the second input (110b) that can be applied signal wherein the difference signal to a second encoder (114) can be fed for generating a second scaling layer; anda phase distorter (10a, 10b) for phase distorting with a non-linear frequency-dependent phase distortion which is selected such that a phase difference between at the first input (110a) can be laid and the signal ...