Clearly, we prevent aliasing noise in the downsampled data by sacrificing the original 2.5-kHz signal. Program 12-1 gives the detail of MATLAB implementation. Figure 12-3B. Spectrum before ...

This article focuses mainly on the utility behind the downsampling and upsampling, and hence this would lead to the sub-band coding, which is a widely used ... The Matlab 9.4 tool is used for ...