2016-07-29 8:55 GMT+02:00 <list_em...@icloud.com>: > > On Jul 25, 2016, at 3:20 PM, Stefano D'Angelo <zanga.m...@gmail.com> wrote: > >> Otherwise, you might very well use higher-order (i.e., not just >> linear) interpolators, (e.g., not-a-knot cubic spline interpolator), > > What is a "not-a-knot cubic spline interpolator"? > Jerry
Informally speaking, given two points between which to interpolate, you are left with two degrees of freedom to define a cubic (spline) interpolating function. Among all the possibilities, if you impose continuity of the third derivatives between different splines for each segment (as you go through samples), what you get are so-called "not-a-knot" splines. Best, -- Stefano D'Angelo http://sdangelo.github.io/ _______________________________________________ dupswapdrop: music-dsp mailing list music-dsp@music.columbia.edu https://lists.columbia.edu/mailman/listinfo/music-dsp
