to improve the frequency of the celp - inspiration for the sprachkodierung and decoding

摘要

The present invention comprises: first periodicity providing means (54) for emphasizing periodicity of a fixed code vector output from at least one fixed excitation code book by use of a first periodicity emphasis coefficient adaptively determined based on a predetermined rule; and second periodicity providing means (58) for emphasizing periodicity of a fixed code vector output from at least one fixed excitation code book by use of a predetermined second periodicity emphasis coefficient. IMAGE