An audio decoding device comprising: a spatial information decoding unit configured to decode, using a first channel signal and a second channel signal included in a plurality of channels of an audio signal having a first frequency range and a second frequency range, first prediction coefficients of the first frequency range and second prediction coefficients of the second frequency range, both selected from a code book when prediction-encoding a third channel signal that is included in the plurality of channels; a residual signal decoding unit configured to decode a residual signal (res(k, n)) included in the first frequency range, the residual signal representing an error occurring in prediction encoding; and a prediction decoding unit configured to prediction-decode a residual corrected center-channel signal (C" 0 (k, n)) in the first frequency range obtained through prediction decoding using the first channel signal (L 0 (k, n)), the second channel signal (R 0 (k, n)), the first prediction coefficients (c 1 (k), c 2 (k)) of the first frequency range, and the residual signal (res(k, n)) of the first frequency range, characterized in that the prediction decoding unit is further configured to prediction-decode third prediction coefficients (c' 1 (k), c' 2 (k)) obtained through said residual corrected center-channel signal (C" 0 (k, n)), the first channel signal (L 0 (k, n)), and the second channel signal (R 0 (k, n)) in the first frequency range, and a replacement correction center-channel signal (C'''o(k,n)) obtained through said third prediction coefficients (c' 1 (k), c' 2 (k)), the first channel signal (L 0 (k, n)), and the second channel signal (R 0 (k, n)) for each frequency range (k) of the second frequency range where the first prediction coefficients (c 1 (k), c 2 (k)) of the first frequency range (k 1 to k 4) match or are within a predetermined threshold value from the second prediction coefficients (c 1 (k), c 2 (k)) of the second frequency range (k 5 to k 8). a spatial information decoding unit configured to decode, using a first channel signal and a second channel signal included in a plurality of channels of an audio signal having a first frequency range and a second frequency range, first prediction coefficients of the first frequency range and second prediction coefficients of the second frequency range, both selected from a code book when prediction-encoding a third channel signal that is included in the plurality of channels; a residual signal decoding unit configured to decode a residual signal (res(k, n)) included in the first frequency range, the residual signal representing an error occurring in prediction encoding; and a prediction decoding unit configured to prediction-decode a residual corrected center-channel signal (C" 0 (k, n)) in the first frequency range obtained through prediction decoding using the first channel signal (L 0 (k, n)), the second channel signal (R 0 (k, n)), the first prediction coefficients (c 1 (k), c 2 (k)) of the first frequency range, and the residual signal (res(k, n)) of the first frequency range, characterized in that the prediction decoding unit is further configured to prediction-decode third prediction coefficients (c' 1 (k), c' 2 (k)) obtained through said residual corrected center-channel signal (C" 0 (k, n)), the first channel signal (L 0 (k, n)), and the second channel signal (R 0 (k, n)) in the first frequency range, and a replacement correction center-channel signal (C'''o(k,n)) obtained through said third prediction coefficients (c' 1 (k), c' 2 (k)), the first channel signal (L 0 (k, n)), and the second channel signal (R 0 (k, n)) for each frequency range (k) of the second frequency range where the first prediction coefficients (c 1 (k), c 2 (k)) of the first frequency range (k 1 to k 4) match or are within a predetermined threshold value from the second prediction coefficients (c 1 (k), c 2 (k)) of the second frequency range (k 5 to k 8).