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Designing a Notch Filter

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Sri Srujan Gollapudi
评论： Gui Chen 2021-1-27
Hello,
I'd like to design a notch filter with Fs=22050Hz, frequency=60Hz sinusoidal signal. Can someone please tell me what parameters to pass inside the notch filter function?
Also, I have a voice signal saved as .wav file in my computer, and I want to mix it with the above 60Hz sine signal. Can someone help me with both my queries? I've been trying a few ways, but couldn't find the result.
Thanks
  1 个评论
Gui Chen
Gui Chen 2021-1-27
Here is a video about the notch filter design. You could take a look at it.
https://youtu.be/ke4i9NsTOyQ

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回答（1 个）

Sulaymon Eshkabilov
Sulaymon Eshkabilov 2019-10-19
% The signal processing toolbox of MATLAB has:
iirnotch()
% Import your wav file with:
[y,Fs] = audioread('AUDIO_FIle.wav');
%
Good luck.
  1 个评论
Sri Srujan Gollapudi
Sri Srujan Gollapudi 2019-10-19
Thanks for the response, but can you tell me what parameters I need to pass inside iirnotch() with Fs and notch frequncy given.
Thanks

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