SIGNAL ENCODER, SIGNAL DECODER, SIGNAL ENCODING METHOD, SIGNAL DECODING METHOD, PROGRAM, RECORDING MEDIUM AND SIGNAL CODEC METHOD

摘要

According to the present invention, a shift amount S j-1 of the previous frame is held in a shift amount buffer of an integer signal coder. At least as many last sample values in the previous frame as the number of an order P used in linear predictive analysis are held in a sample buffer of the integer signal coder. The last P sample values in the previous frame held in the sample buffer of the integer signal coder are corrected in an interframe correction section by S j - S j-1 on the basis of the shift amount S j of the current frame and the shift amount S j-1 of the previous frame determined by a shift amount determining section.