[sdiy] Looking for cheap lowpass filter algorithm

[Antti Huovilainen]

On Wed, 16 Aug 2006, Seb Francis wrote:

> Ah, 32 multiplies per sample is more expensive that I wanted.  I was hoping 
> to have say <=4 multiplies per sample.

Not going to happen. You might be able to get something semi-usable with 
16 multiplies but you'd really have to go to 24 to get decent results.

What are you doing where you can't spare extra 20-30 cycles?

Antti

"No boom today. Boom tomorrow. There's always a boom tomorrow"
   -- Lt. Cmdr. Ivanova