Audio Signal Processing Using Filter (LP, HP, BP, BS) | MATLAB Tutorial

In this instructable, we are showing how to apply filters (Low pass filter, high pass filter, band pass filter and band stop filter) on lively recorded voice.

Write:

clc (Clear window command)

clear all (To clear all written commands)

close all (To close all open tabs)

Record your lively audio for filtering using microphone.

recordblocking(recording, 5);

Here, 5 is seconds of audio recording.

Specify the order of filter and sampling frequency.

Here, N=8 order of filter

and Fc=0.2 sampling frequency

Wait for 'Speak' and start recording for five seconds and Stop when 'Stop' is display.

Frequency Response and Filtered result before and after apply filter.

Frequency Response and Filtered result before and after apply filter.

Frequency Response.

Frequency Response.

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