What I'm trying to do is simple. I have several wav files. I want to remove noise and filter out certain frequencies. I don't have Matlab, and I intend to write my own code for all filters. Right now, I have a way to read a WAV file and upload the structure to a text file. My questions are as follows:
- Can digital filters be applied based on these sampled data? (can I do a convolution between my input samples and h (n) for the filter function, what i choose?).
- How to choose the number of coefficients for a window function?
I have an octave, so if someone can point me to something that gives me an idea of โโhow to process a WAV file using an octave, this is also great. I want to be able to filter out the frequency and then listen to the sound again. Is this possible with an octave?
I'm just a beginner with such things, so please bear with me if my questions are too naive. Any help would be great.
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