An apparatus for reproducing an audio signal based on first data (120; 321; 705) representing a coded version of a first portion of the audio signal in a first frequency band and second data (126; 322; 708) representing side information on a second portion of the audio signal in a second frequency band, the second frequency band comprising frequencies higher than the first frequency band, said device comprising: a first reproducer configured to reproduce the first portion of the audio signal based on the first data (120; 321; 705); a provider (102; 200, 202a) configured to provide a patch signal (122; 204) in the second frequency band, wherein the patch signal (122; 204) is at least partially uncorrelated with respect to the first portion of the audio signal or is at least partially a decorrelated version of the first portion of the audio signal, which has been shifted to the second frequency band; a second reproducer representing a post-processor and configured to reproduce the second portion of the audio signal in the second frequency band based on the second data (126; 322; 708) and the patch signal (122; 204), wherein a spectral envelope of the second portion of the audio signal, a noise floor in the second portion of the audio signal, a tonality measure for each partial band in the second portion of the audio signal, and an explicit coding of prominent sinusoidal portions in the second portion of the audio signal represent side information represented by the second data; and a combiner configured to combine the reproduced first portion of the audio signal and the patch signal (122; 204) before the second portion of the audio signal is reproduced by the second reproducer or to combine the reproduced first portion of the audio signal and the reproduced second portion of the audio signal. a first reproducer configured to reproduce the first portion of the audio signal based on the first data (120; 321; 705); a provider (102; 200, 202a) configured to provide a patch signal (122; 204) in the second frequency band, wherein the patch signal (122; 204) is at least partially uncorrelated with respect to the first portion of the audio signal or is at least partially a decorrelated version of the first portion of the audio signal, which has been shifted to the second frequency band; a second reproducer representing a post-processor and configured to reproduce the second portion of the audio signal in the second frequency band based on the second data (126; 322; 708) and the patch signal (122; 204), wherein a spectral envelope of the second portion of the audio signal, a noise floor in the second portion of the audio signal, a tonality measure for each partial band in the second portion of the audio signal, and an explicit coding of prominent sinusoidal portions in the second portion of the audio signal represent side information represented by the second data; and a combiner configured to combine the reproduced first portion of the audio signal and the patch signal (122; 204) before the second portion of the audio signal is reproduced by the second reproducer or to combine the reproduced first portion of the audio signal and the reproduced second portion of the audio signal.