Patent ID: 8411731

Claim:
A device for processing a real subband signal of a plurality of real subband signals which are a representation of a real discrete-time signal generated by an analysis filter bank, comprising: a weighter for weighting the subband signal of the plurality of real subband signals by a weighting factor determined for the subband signal to achieve a weighted subband signal; a correction term determiner for calculating a correction term, the correction term determiner being implemented to calculate the correction term using at least one other subband signal and using another weighting factor provided for the other subband signal, the other weighting factor differing from the weighting factor; and a combiner for combining the weighted subband signal and the correction term to achieve a corrected subband signal, wherein the correction term determiner is implemented to calculate an unweighted correction term in dependence on the other subband signal, and to weight the unweighted correction term by a difference of the weighting factor for the subband signal and the weighting factor for the other subband signal wherein at least one of the weighter, the correction term determiner, and the combiner comprises a hardware implementation.