How to generate the coefficients of an itu-r 2k filter when all I know is my 0 dB point is at 2 kHz and my maximum of 6 dB is at 7 kHz
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I assume you're talking about a digital implementation. What kind of filter do you want to use? – Matt L. Jun 24 '15 at 20:42
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i have an array to which I do an FFT on and then a low pass, and in the end I need to apply an itu-r 2k filter which acts the same as an itu-r 468 filter but it is 6dB shifted. I know I need to multiply the array I have with an array of the same size which contains the coefficients of this filter but I do not know how to generate them when all I know is my 0 dB point and my maximum – penguin07 Jun 25 '15 at 09:00
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You don't actually implement very good filters by simply multiplying FFT bins (see this question) and its answers. Or do you use overlap-add or overlap-save? – Matt L. Jun 26 '15 at 10:33
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I have done the FFT already and that is all fine, I then apply a low pass filter on my array of data and the last step is applying the itu-r arm 2 kHz filter which I do not know how to do. – penguin07 Jun 26 '15 at 11:30
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I understood that, but my point was that you can't implement the itu-r arm filter by just multiplying your FFT array by some weights. The same is true for the low pass filter. – Matt L. Jun 26 '15 at 12:09