[sdiy] Looking for cheap lowpass filter algorithm

[Seb Francis]

Eric Brombaugh wrote:
> Seb Francis wrote:
>>
>> With the Parks-McClellan Equiripple (aka Remez) algorithm it's 
>> possible to get more stop band rejection at the expense of increased 
>> ripple.  It seems the big disadvantage with the results this 
>> algorithm gives is that the phase response within the passband is 
>> always oscillating between -180 and 180 deg with every 'ripple' in 
>> the amplitude response.  This is the case regardless of how many taps 
>> you use.
>
> True enough.

Actually, I think I was talking nonsense here :)
.. see my reply to Scott's post.

Seb