Re: [PD] tabread4~ interpolation revisited

2019-06-03 Thread Miller Puckette
See also pd/doc/3.examples/B16.long-varispeed.pd which shows how you can index a long wavetable using only vanilla tabread4~. It's a bit clunky and needs to be put in an easy-to-use abstraction (on my dolist for someday). cheers Miller On Mon, Jun 03, 2019 at 11:44:25AM +0200, Christof Ressi wro

Re: [PD] tabread4~ interpolation revisited

2019-06-03 Thread Charles Z Henry
On Mon, Jun 3, 2019 at 5:14 AM cyrille henry wrote: > > Hello, > > - When reading a file at slower speed, tabread4~ create audible artefact. > tabred4c~ use the same algorithm but with small difference in the > interpolation coefficient (tabread4c~ use very classic coefficient for audio > inter

Re: [PD] tabread4~ interpolation revisited

2019-06-03 Thread cyrille henry
Hello, - When reading a file at slower speed, tabread4~ create audible artefact. tabred4c~ use the same algorithm but with small difference in the interpolation coefficient (tabread4c~ use very classic coefficient for audio interpolation. Miller use a coefficient set that minimize artefact fro

Re: [PD] tabread4~ interpolation revisited

2019-06-03 Thread Christof Ressi
> I have to apologize, yes the artifacts were produced by the indexing I've thought so :-) Interpolation artifacts are *usually* very subtle while the indexing artifacts might be quite harsh. > will use the second inlet from now on. note that zexy has an (undocumented) [tabread4~~] object where

Re: [PD] tabread4~ interpolation revisited

2019-06-03 Thread Peter P.
Dear Christof, dear list, * Christof Ressi [2019-06-02 17:46]: > > bleeding from the interpolation artefacts audible in almost every second > > composition. > > in your specific cases, are the artifacts really caused by the interpolation > scheme or rather a product of indexing [tabread4~] with

Re: [PD] tabread4~ interpolation revisited

2019-06-03 Thread cyrille henry
Le 03/06/2019 à 09:35, Lorenzo Sutton a écrit : On 02/06/19 17:46, Christof Ressi wrote: bleeding from the interpolation artefacts audible in almost every second composition. in your specific cases, are the artifacts really caused by the interpolation scheme or rather a product of indexing [

Re: [PD] tabread4~ interpolation revisited

2019-06-03 Thread Lorenzo Sutton
On 02/06/19 17:46, Christof Ressi wrote: bleeding from the interpolation artefacts audible in almost every second composition. in your specific cases, are the artifacts really caused by the interpolation scheme or rather a product of indexing [tabread4~] with large floats (instead of using the