期刊名称：International Journal of Computer Technology and Applications
电子版ISSN：2229-6093
出版年度：2012
卷号：3
期号：4
页码：1501-1503
出版社：Technopark Publications
摘要：Speech compression is the digital signal which is compressed by using various techniques for transmission. This paper explains a transform methodology for compression of the speech signal. In this paper speech is compressed by discrete wavelet transform technique afterward compressed signal is again compressed by discrete cosine transform afterward compressed signal is decompressed by discrete wavelet transform. The performance of speech signal is measure on the basis of peak signal to noise ratio (PSNR) and mean square error (MSE) by using different filters of wavelet family
关键词：DCT; DWT; SPEECH COMPRESSION AND DECOMPRESSION
