13 Jul
2013
13 Jul
'13
6:56 p.m.
On Sat, Jul 13, 2013 at 5:32 PM, Fons Adriaensen <fons(a)linuxaudio.org>
wrote:
This could be done very efficiently, in particular if
you accept some
compromises for the lowpass filter, and even more if the waveforms can
be summed before downsampling.
Good idea, I wouldn't have thought of summing before downsampling.
In terms of compromises for the lowpass filter, what is it you were
thinking of?
A bit of reading tells me that most analog devices use elliptic filters,
with 4/8 poles or so for this purpose..
Seems a little overkill? I've no experience in this area... yet!
-Harry