A decoder for decoding a current frame to reconstruct an audio signal, wherein the audio signal is encoded within the current frame, wherein the current frame comprises a current bitstream payload, wherein the current bitstream payload comprises a plurality of payload bits, wherein the plurality of payload bits encodes a plurality of spectral lines of a spectrum of the audio signal, wherein each of the payload bits exhibits a position within the current bitstream payload, wherein the decoder comprises a decoding module configured to reconstruct the audio signal, and an output interface configured to output the audio signal, characterized in that the decoding module comprises a partial frame loss concealment mode, wherein, if the decoding module is in the partial frame loss concealment mode, the decoding module is configured to reconstruct the audio signal without conducting error concealment for one or more first spectral lines of the plurality of spectral lines of the spectrum, which exhibit a frequency being smaller than or equal to a threshold frequency, wherein said one or more first spectral lines have been encoded by a first group of one or more of the plurality of payload bits, and to reconstruct the audio signal by conducting error concealment for one or more second spectral lines of the plurality of spectral lines of the spectrum, which exhibit a frequency being greater than the threshold frequency, wherein said one or more second spectral lines have been encoded by a second group of one or more of the plurality of payload bits. wherein the decoder comprises a decoding module configured to reconstruct the audio signal, and an output interface configured to output the audio signal, characterized in that the decoding module comprises a partial frame loss concealment mode, wherein, if the decoding module is in the partial frame loss concealment mode, the decoding module is configured to reconstruct the audio signal without conducting error concealment for one or more first spectral lines of the plurality of spectral lines of the spectrum, which exhibit a frequency being smaller than or equal to a threshold frequency, wherein said one or more first spectral lines have been encoded by a first group of one or more of the plurality of payload bits, and to reconstruct the audio signal by conducting error concealment for one or more second spectral lines of the plurality of spectral lines of the spectrum, which exhibit a frequency being greater than the threshold frequency, wherein said one or more second spectral lines have been encoded by a second group of one or more of the plurality of payload bits. to reconstruct the audio signal without conducting error concealment for one or more first spectral lines of the plurality of spectral lines of the spectrum, which exhibit a frequency being smaller than or equal to a threshold frequency, wherein said one or more first spectral lines have been encoded by a first group of one or more of the plurality of payload bits, and to reconstruct the audio signal by conducting error concealment for one or more second spectral lines of the plurality of spectral lines of the spectrum, which exhibit a frequency being greater than the threshold frequency, wherein said one or more second spectral lines have been encoded by a second group of one or more of the plurality of payload bits. <EOS>