Audio encoder for encoding an audio signal, comprising: a first encoding processor for encoding a first audio signal portion of the audio signal in a frequency domain, wherein the first encoding processor has a full-band capability and comprises: a time-frequency converter for converting the first audio signal portion into a frequency domain representation having spectral lines up to a maximum frequency (f max) of the first audio signal portion, the maximum frequency (f max) being the maximum frequency of the audio signal; an analyzer for analyzing the frequency domain representation up to the maximum frequency (f max) to determine first spectral portions to be encoded with a first spectral resolution and second spectral portions to be encoded with a second spectral resolution, the second spectral resolution being lower than the first spectral resolution, wherein the analyzer is configured to determine a first spectral portion from the first spectral portions, the first spectral portion being placed, with respect to frequency, between two second spectral portions (307a, 307b) from the second spectral portions; a spectral encoder for encoding the first spectral portions with the first spectral resolution and for encoding the second spectral portions with the second spectral resolution, wherein the spectral encoder comprises a parametric coder for calculating spectral envelope information having the second spectral resolution from the second spectral portions; a second encoding processor for encoding a second different audio signal portion of the audio signal in the time domain; a controller configured for analyzing the audio signal and for determining, which portion of the audio signal is the first audio signal portion encoded in the frequency domain by the first encoding processor and which portion of the audio signal is the second different audio signal portion encoded in the time domain by the second encoding processor; and an encoded signal former for forming an encoded audio signal comprising a first encoded signal portion for the first audio signal portion and a second encoded signal portion for the second different audio signal portion. a first encoding processor for encoding a first audio signal portion of the audio signal in a frequency domain, wherein the first encoding processor has a full-band capability and comprises: a time-frequency converter for converting the first audio signal portion into a frequency domain representation having spectral lines up to a maximum frequency (f max) of the first audio signal portion, the maximum frequency (f max) being the maximum frequency of the audio signal; an analyzer for analyzing the frequency domain representation up to the maximum frequency (f max) to determine first spectral portions to be encoded with a first spectral resolution and second spectral portions to be encoded with a second spectral resolution, the second spectral resolution being lower than the first spectral resolution, wherein the analyzer is configured to determine a first spectral portion from the first spectral portions, the first spectral portion being placed, with respect to frequency, between two second spectral portions (307a, 307b) from the second spectral portions; a spectral encoder for encoding the first spectral portions with the first spectral resolution and for encoding the second spectral portions with the second spectral resolution, wherein the spectral encoder comprises a parametric coder for calculating spectral envelope information having the second spectral resolution from the second spectral portions; a time-frequency converter for converting the first audio signal portion into a frequency domain representation having spectral lines up to a maximum frequency (f max) of the first audio signal portion, the maximum frequency (f max) being the maximum frequency of the audio signal; an analyzer for analyzing the frequency domain representation up to the maximum frequency (f max) to determine first spectral portions to be encoded with a first spectral resolution and second spectral portions to be encoded with a second spectral resolution, the second spectral resolution being lower than the first spectral resolution, wherein the analyzer is configured to determine a first spectral portion from the first spectral portions, the first spectral portion being placed, with respect to frequency, between two second spectral portions (307a, 307b) from the second spectral portions; a spectral encoder for encoding the first spectral portions with the first spectral resolution and for encoding the second spectral portions with the second spectral resolution, wherein the spectral encoder comprises a parametric coder for calculating spectral envelope information having the second spectral resolution from the second spectral portions; a second encoding processor for encoding a second different audio signal portion of the audio signal in the time domain; a controller configured for analyzing the audio signal and for determining, which portion of the audio signal is the first audio signal portion encoded in the frequency domain by the first encoding processor and which portion of the audio signal is the second different audio signal portion encoded in the time domain by the second encoding processor; and an encoded signal former for forming an encoded audio signal comprising a first encoded signal portion for the first audio signal portion and a second encoded signal portion for the second different audio signal portion.