JeremiahRose
Member
Hi there,
I've been trying in vain for the last few days with various Python scripts, as well as http://t-filter.engineerjs.com/ (the page recommended in the Audio System Design Tool), to generate FIR filter coefficients for the AudioFilterFIR object.
Everything I try just produces horribly distorted and aliased audio output!
However, if I copy the filter coefficients from lopass_1000_44100.h (from File > Examples > Audio > Effects > Filter_FIR), this filter sounds really nice, with hardly any distortion, and it works as it should.
I'm wondering if the author of lopass_1000_44100.h is around, would they be able to describe here what tool they used to calculate these coefficients, and how they did it and thought about it more generally?
I've been trying in vain for the last few days with various Python scripts, as well as http://t-filter.engineerjs.com/ (the page recommended in the Audio System Design Tool), to generate FIR filter coefficients for the AudioFilterFIR object.
Everything I try just produces horribly distorted and aliased audio output!
However, if I copy the filter coefficients from lopass_1000_44100.h (from File > Examples > Audio > Effects > Filter_FIR), this filter sounds really nice, with hardly any distortion, and it works as it should.
I'm wondering if the author of lopass_1000_44100.h is around, would they be able to describe here what tool they used to calculate these coefficients, and how they did it and thought about it more generally?