Design FIR lowpass/bandpass/highpass filter and filter speech signal.


Updated Fri, 11 Sep 2015 15:52:41 +0000

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A standard operation when processing signals is to lowpass/bandpass/highpass filter a speech signal in order to eliminate extraneous low and high frequency components, such as DC offset, hum, and noise which are often created during the recording process. This exercise describes a MATLAB exercise for designing an appropriate FIR filter (based on user specifications) and then filtering the speech signal using the designed filter. The file '1.8 Filter Signal.pdf' provides a User's Guide for this exercise.

Cite As

Lawrence Rabiner (2023). Filter_Signal (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2015a
Compatible with any release
Platform Compatibility
Windows macOS Linux

Inspired: fft plotting


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Version Published Release Notes

works on both R2015a and windows 10
added name of User's Guide for this exercise