APPARATUS AND METHOD FOR GENERATING A FREQUENCY ENHANCED SIGNAL USING SHAPING OF THE ENHANCEMENT SIGNAL

摘要

An apparatus for generating a frequency enhancement signal (140) comprises: a calculator (500) for calculating a value describing an energy distribution with respect to frequency in a core signal (110, 120); and a signal generator (200) for generating an enhancement signal (130) comprising an enhancement frequency range not included in the core signal, from the core signal (502), wherein the signal generator (200) is configured for shaping the enhancement signal or the core signal so that a spectral envelope of the enhancement signal or of the core signal depends on the value (501) describing the energy distribution with respect to frequency in the core signal.