ENCODING METHOD, ENCODING DEVICE, DECODING METHOD, DECODING DEVICE, PROGRAM, AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To achieve compressive and lossless encoding of an acoustical signal encoded by an encoding method in which a unique code word is given to each of the existing two minimum quantization intervals. SOLUTION: At least one of a system of the number of continuous occurrences of one code word A, a system of the number of continuous occurrences of other code word B out of two types of code words, and a system of the number of alternate continuous occurrences of two types of code word is obtained to output the code corresponding to the obtained system of the number of continuous occurrences according to the proportion P of the number of one code words A out of two types code words to the total number of two types of code words about the frame not including code words other than the two types of code words respectively given to two minimum quantization intervals each frame composed of the input code word of the plurality of samples by inputting the code word in which the acoustic signal is encoded by the encoding method to which the unique code word is given to respective existing two minimum quantization intervals. COPYRIGHT: (C)2011,JPO&INPIT