Best anti-aliasing filter?
Posted: Mon Sep 14, 2015 9:00 am
Hi you clever ones!
I fear this is going to be seen as a naive question but since there has been a lot of talk about filters it's at least a simple one I think...
Does anyone have the very best filter module to efficiently provide a brick-wall filter to kill aliasing dead? Something that removes all frequencies above say 20kHz coming out of e.g. a naive sawtooth oscillator or simple pwm source and doesn't cause any unwanted side effects like audible ringing or heavy CPU use.
I do know it must be low-pass in funcion of course but I would like to see what would be thought of as the "best" way to do it.
Cheers
Spogg
I fear this is going to be seen as a naive question but since there has been a lot of talk about filters it's at least a simple one I think...
Does anyone have the very best filter module to efficiently provide a brick-wall filter to kill aliasing dead? Something that removes all frequencies above say 20kHz coming out of e.g. a naive sawtooth oscillator or simple pwm source and doesn't cause any unwanted side effects like audible ringing or heavy CPU use.
I do know it must be low-pass in funcion of course but I would like to see what would be thought of as the "best" way to do it.
Cheers
Spogg