Is there something similar in Vanilla for a [lp8_cheb~ 20000 100] When I copy the iemlib abs into my extra and dive into the objects it eventually fails because it cannot create filter~
Sent from my iPhone > On Jul 3, 2015, at 1:27 AM, Miller Puckette <m...@ucsd.edu> wrote: > > I've never seen that approximation before but there must be some > restriction on the allowable values of X since the expression diverges > for large positive or negative values of x, while tanh(x) converges to > +1 nad -1, respectively. > > cheers > Miller >> On Fri, Jul 03, 2015 at 01:23:29PM +0900, i go bananas wrote: >> there's a good approximation for tanh that can be made using just a couple >> of simple arithmetic objects: >> >> formula is: tanh(x) ~= x*(27+x*x) / (27+9*x*x) >> >> it's close enough for every application i've ever come across, it's cheap >> cos it only uses simple arithmetic, and it doesn't degrade the resolution >> of your signal like a table lookup does. >> >> >> >>> On Fri, Jul 3, 2015 at 12:56 PM, Chris McCormick <ch...@mccormick.cx> wrote: >>> >>>> On 03/07/15 03:06, Pagano, Patrick wrote: >>>> Is there a way i can replace something for tanh~ >>>> and inits in Vanilla 46? >>> >>> Using a pre-computed table for speed: >>> >>> https://github.com/chr15m/blockhead/blob/master/e_tanh.pd >>> https://github.com/chr15m/blockhead/blob/master/e_tanh-help.pd >>> >>> Or install "blockhead" using deken. :) >>> >>> Cheers, >>> >>> Chris. >>> >>> -- >>> http://mccormick.cx/ >>> >>> _______________________________________________ >>> Pd-list@lists.iem.at mailing list >>> UNSUBSCRIBE and account-management -> >>> http://lists.puredata.info/listinfo/pd-list > > >> _______________________________________________ >> Pd-list@lists.iem.at mailing list >> UNSUBSCRIBE and account-management -> >> http://lists.puredata.info/listinfo/pd-list > > > _______________________________________________ > Pd-list@lists.iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list _______________________________________________ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list