複素数多重解像度解析によるレコード音楽中のパルスノイズの除去に関する研究(機械力学,計測,自動制御)

抄録

In this study, we propose a complex multi resolution analysis (CMRA) with RI-Spline wavelet and dual-tree algorithm corresponding to CMRA in order to carry out discrete wavelet transform, and apply it to remove pulse noise from music. The main results obtained can be summarized as follows: 1) Poor shift invariance which occurred by the discrete wavelet transform in the case of using real mother wavelet has been improved by using CMRA was conformed. 2)The discrete wavelet transform corresponding to CMRA has been applied to removal of the pulse noise in record music, and the usefulness of our approach was demonstrated.