I am currently designing an FIR notch filter using
Matlab Filter Design & Analysis tool. I created a notch filter at desired notch frequency (lets say f0) with sampling frequency of 44.1kHz. But I found that the same notch filter is not able to filter-out/attenuate the desired frequency in other audio signals with different sampling rates.
Is it possible to design a single notch filter that works for all audio sampling frequencies.
FYI, I have tried with designing a notch filter with highest sampling frequency, but it is not working for audio with sampling rate other than what it is designed for?
Can somebody help me/provide me a lead in designing such a notch filter?