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Multirate Filtering in Simulink

DSP System Toolbox™ software provides a collection of multirate filtering examples that illustrate typical applications of the multirate filtering blocks.

Multirate Filtering ExamplesDescriptionCommand for Opening Examples in MATLAB®

Audio Sample Rate Conversion

Illustrates sample rate conversion of an audio signal from 22.050 kHz to 8 kHz using a multirate FIR rate conversion approach


Sigma-Delta A/D Converter

Illustrates analog-to-digital conversion using a sigma-delta algorithm implementation


Wavelet Reconstruction and Noise Reduction

Uses the Dyadic Analysis Filter Bank and Dyadic Synthesis Filter Bank blocks to show both the perfect reconstruction property of wavelets and an application for noise reduction


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