[PD] writesf~ buglet(?) re. dsp on/off

[Larry Troxler]

On Saturday 17 January 2004 17:55, Miller Puckette wrote:
> Well, they should all work the same whether DSP is on or off.  THis
> isn't always true in reality - in particular, tilde objects don't
> get to find out their sample rate until DSP goes on.  There are probably
> other situations as well.  This one about writesf~ is probably a bug
> in the object, nothing deeper.  But writesf~ is delicate enough that
> I'm afraid to monkey with it for a "patch" release, so will wait until
> later to try ti fix this.
>
> cheers
> Miller
>

Sounds good to me - adding a comment in the help patch about this quirk is 
plenty good enough I think.

Larry

> On Sun, Dec 21, 2003 at 07:39:03PM -0500, Larry Troxler wrote:
> > hmm, it seems that writesf~ only works correctly for me when the "open"
> > message is sent when DSP is already on.
> >
> > For example, this works:
> >
> > ; dsp on
> > ( send open message to writesf~)
> > (send start message to writesf~)
> > (wait some time)
> > (send stop message to writesf~)
> > (wait some time)
> > ; dsp off
> >
> > .. but this doesn't (starting with dsp off) :
> >
> > (send open message to writesf~)
> > ; dsp on
> > (send start message to writesf~)
> > (wait some time)
> > (send stop message to writesf~)
> > (wait some time)
> > ; dsp off
> >
> > In the second case, a file does get created, but it captures only a
> > portion of the total recording time.
> >
> > I Haven't looked through the source yet to trace this, but this raises a
> > larger issue I think: how do we know which messages on objects work with
> > dsp off, and which of them require dsp on?
> >
> > Best Regards
> >
> > Larry Troxler
> >
> >
> >
> >
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