An audio decoder (100; 300) for providing a decoded audio information (112;312) on the basis of an encoded audio information (110; 310), the audio decoder comprising: an error concealment means (130; 380; 500) configured to provide an error concealment audio information (132; 382; 512) for concealing a loss of an audio frame following an audio frame encoded in a frequency domain representation using a time domain excitation signal; wherein the error concealment means (130;380;500) is configured to modify the time domain excitation signal obtained on the basis of one or more audio frames preceding a lost audio frame, in order to obtain the error concealment audio information (132;382;512); wherein the error concealment means (132;380;500) is configured to modify the time domain excitation signal obtained on the basis of one or more audio frames preceding a lost audio frame, or one or more copies thereof, to thereby reduce a periodic component of the error concealment audio information (132;382;512) over time; wherein the error concealment means (130; 380; 500) is configured to gradually reduce a gain applied to scale the time domain excitation signal obtained on the basis of one or more audio frames preceding a lost audio frame, or the one or more copies thereof; the audio decoder is characterised in that the error concealment means is configured to adjust the speed used to gradually reduce a gain applied to scale the time domain excitation signal obtained on the basis of one or more audio frames preceding a lost audio frame, or the one or more copies thereof, in dependence on a length of a pitch period of the time domain excitation signal, such that a time domain excitation signal input into an LPC synthesis is faded out faster for signals having a shorter length of the pitch period when compared to signals having a larger length of the pitch period. an error concealment means (130; 380; 500) configured to provide an error concealment audio information (132; 382; 512) for concealing a loss of an audio frame following an audio frame encoded in a frequency domain representation using a time domain excitation signal; wherein the error concealment means (130;380;500) is configured to modify the time domain excitation signal obtained on the basis of one or more audio frames preceding a lost audio frame, in order to obtain the error concealment audio information (132;382;512); wherein the error concealment means (132;380;500) is configured to modify the time domain excitation signal obtained on the basis of one or more audio frames preceding a lost audio frame, or one or more copies thereof, to thereby reduce a periodic component of the error concealment audio information (132;382;512) over time; wherein the error concealment means (130; 380; 500) is configured to gradually reduce a gain applied to scale the time domain excitation signal obtained on the basis of one or more audio frames preceding a lost audio frame, or the one or more copies thereof; the audio decoder is characterised in that the error concealment means is configured to adjust the speed used to gradually reduce a gain applied to scale the time domain excitation signal obtained on the basis of one or more audio frames preceding a lost audio frame, or the one or more copies thereof, in dependence on a length of a pitch period of the time domain excitation signal, such that a time domain excitation signal input into an LPC synthesis is faded out faster for signals having a shorter length of the pitch period when compared to signals having a larger length of the pitch period.