Hi All,

Just to note, there is also some code with 0.51 in schdofftim in
insert.c (just wanting to point out differences I'm finding between
Csound4 and Csound5).

Another thing I found in sensevents; in Csound 4 there is:

if (O.Beatmode)
        kcnt = RNDINT(((double) nxtbt - (double) curbt)
                                    * (double)
ekrbetsiz);/*(long)((nxtbt - curbt) * ekrbetsiz + FL(0.5));*/
      else
        kcnt = RNDINT(((double) nxtim - (double) curp2)
                                    * (double) ekr);/*(long)((nxtim -
curp2) * ekr + FL(0.5));*/

and Csound 5 there is:

/* calculate the number of k-periods remaining until next event */
      if (O->Beatmode)
        csound->cyclesRemaining =
          RNDINT((csound->nxtbt - csound->curBeat) / csound->curBeat_inc);
      else
        csound->cyclesRemaining =
          RNDINT((csound->nxtim - csound->curTime) / csound->curTime_inc);

One is doing a multiplication and the other a division.  In Csound5,
curTime_inc looks like it is set as:

 p->curTime_inc = 1.0 / (double) p->ekr;

in Engine/otran.c.  I could see losing precision with the division by
the value that is already 1/kr, so perhaps something is happening
there?

Thanks!
steven



On Mon, Oct 6, 2008 at 3:26 AM, jpff <jpff@cs.bath.ac.uk> wrote:
> Yes; tried replacing 0.51 with 0.5 -- did not fix it.  The problem is
> before then as it is already wrong before it calls expire -- the
> problem is the next bnot being too late, not the expiry being wrong.
> ==John ffitch
>
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