EECOL_2009JAN04_ACC_TA_27.pdf

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语音信号子带分解与合成的 MATLAB 实现
作者：刘萌 物理科学与技术系助教 山东教育学院 郑煊 山东凯文科技职业学院 摘要：采用一种余弦调制正交镜像滤波器组（QMF）在 MATLAB 中实现了对 8kHz 采样语音的子 带分解与合成，并给出了实验结果。经检验，合成后声音效果良好，取得了满意的设计效果， 具有广阔的应用前景。 关键词：余弦调制 正交镜像滤波器组 MATLAB 子带分解与合成 The Realizing of Sound Signal’s Subband Decomposition and Reconstruction Liu Meng 1, Zheng Xuan2 (1.Department of physics science and technology, Shandong institute of education, Jinan 250013; 2.shandong kaiwen college of science and technology, jinan 250200. ) Abstract: Using a method of cosine-modulated quadrature mirror filters to realize the 8kHz sampling sound’s subband decomposition and reconstruction in MATLAB, and the results are given in this paper. By testing, the effect sound which is reconstruction is very good, and the design result is promising. It will have a good