Re: Matched Lowpass Filter
Posted: Mon Mar 21, 2016 9:48 pm
Hi all. Just curious, is there a practical application for this? Besides saving on CPU I mean (which is never a bad thing). It might be a little over my head.
The EQ I use for music has an oversampling feature, but although I never have CPU issues I usually switch it off since I can't hear above 16KHz anyways. From what I can recall the oversampling can potentially introduce aliasing, or something along those lines, usually completely inaudible but could potentially create some small difference. I believe it handles white noise poorly. So could this type of filter design be used in lieu of oversampling to avoid that aliasing-or-whatever-it-was?
The EQ I use for music has an oversampling feature, but although I never have CPU issues I usually switch it off since I can't hear above 16KHz anyways. From what I can recall the oversampling can potentially introduce aliasing, or something along those lines, usually completely inaudible but could potentially create some small difference. I believe it handles white noise poorly. So could this type of filter design be used in lieu of oversampling to avoid that aliasing-or-whatever-it-was?