On Fri, Mar 4, 2016 at 3:39 PM, Søren Sandmann <soren.sandm...@gmail.com> wrote:
> > > On Wed, Feb 10, 2016 at 1:25 AM, <spit...@gmail.com> wrote: > >> From: Bill Spitzak <spit...@gmail.com> >> >> The SIGMA term drops out on simplification. >> > > But SIGMA has a meaning here: it's the standard deviation for the normal > distribution corresponding to the Gaussian in question, so unless there is > some good argument for reducing the formula, I think it should stay the way > it is. > The simplification does not happen due to inexact math. > > Expanding the size is fine with me > This is based on checking other software for the widths it uses for such filters. There is a bit of hf at the cutoffs, enlarging the size reduces this. It is very common for "gaussian" to actually be this function multiplied by a sinc window to avoid this, but I did not think that change was a good idea.
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