Matthias Blau wrote:
Hi all,
Therefore I made a subpatch with [switch~ 64 1 0.5] which works most of
...
Sometimes however, I get strong high frequency disturbances. I suspect a bug in switch, but maybe I am missing something?
you might have problems with aliasing. the up/downsampling does very little (to no) pre-filtering. upsampling: depending on the argument the iolet~s will do linear interpolation between 2 original samples at the best(!!!); this is not very good; the default is zero-padding which is really awful (but is there by intent, as you will very soon notice, that "something" is going on) downsampling: if i remember correctly, it just takes every nth sample (even if you specify "linear" there is no smoothing or whatever)
so make sure that you filter your signal before/after down/upsampling.
mfg.asd.r IOhannes