Summary
International Symposium on Nonlinear Theory and its Applications
2009
Session Number:B3L-A
Session:
Number:B3L-A1
Practical Preprocessing in Realizing Errorless and Compressive Description Method of Digital Sounds in Cellular Automata
Tatuya Katoh, Jousuke Kuroiwa, Hisakazu Ogura, Haruhiko Shirai, Tomohiro Odaka,
pp.-
Publication Date:2009/10/18
Online ISSN:2188-5079
Summary:
In this paper, we investigate practical preprocessing in realizing errorless and compressive description method of digital sounds by means of rule sequences of one dimensional cellular automaton with two states and three neighbors, hereafter referred as 1-2-3 CA. We have succeeded to describe digital sounds compressively without any reproducing error except for several sounds. In order to accomplish the errorless and compressive description, we investigate the relationship between the time development of bit-patterns and the length of the rule sequences describing the development. It is shown that the following two preprocessing is necessary; (i) applying the subtraction between successive bit-patterns and (ii) relocating the most significant bit to the lowest order bit. From computer simulations, we succeed to realize the errorless and compressive description for all the digital sounds by applying the above two preprocessing. Therefore, the two preprocessing are practical in describing the digital sound compressively without any reproducing error by means of 1-2-3 CA.