Luigi Rensinghoff wrote: > 1) How to avoid clicks when the whole contents of a table is replaced/ > updated. I tried something with vline....are there some "zero- > crossing" modules for that ?
Fade playback volume to zero, do the switch, fade playback volume up. Vary curve to suit the sound, but that's the general approach I think. A variation uses two tables played back simultaneously, staggered like: aAa aAa aAa aAa ... . bBb bBb bBb bBb ... with volume envelopes such that the total volume is constant. I think this is used in a delay-based pitchshifting example in the docs. > 2) It seems to be possible to replace the contents of a table (the > beginning) while playing the later contents of it. Is it possible to > replace just a portion of a table without overwriting until the end ? Yes, see [tabwrite~] help (the "stop" message in particular). > the whole patch becomes somewhat unstable because of the > graphics-display, any idea for a workaround ? Use [table] instead of a graphical array. > 3) if i have a quite fast running number (index). "select" seems to > be to slow or unstable in any way quite unreliable. i made a > workaround with moses and ">" ...not very elegant. This is a limitation of floating point arithmetic, once you go past a certain size absolute precision becomes less, so integers are missing (ie, there is a floating point number where a + 1 => a, this might also extend to "for any given b, you can find an a such that a + b => a", but I'm not sure). The solution / workaround is to use chained counters all counting with [+ 1]-[mod n]-[select 0], much like a clock uses seconds, minutes, hours, etc. Either that or recompile Pd to use double-precision floats, which isn't trivial, and would only postpone the issue (although by a great deal). Claude -- http://claudiusmaximus.goto10.org _______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
