[PD] New "fast-forward" message

[Miller Puckette]

Angry vline~s is the name of my next garage band :)

M

On Mon, Aug 17, 2020 at 02:52:28AM +0200, Christof Ressi wrote:
> Hey,
> 
> > but I still needed an example to see how to make this happen :)
> Attached you find a simple example for recording N ms of sound to disk.
> 
> > that's used n the help file of [samplerate~] but I agree it should also
> > be included in this new documentaton section. Anyway, what else would
> > you use it for?
> It's useful for preventing "angry vline~s": if you accidentally keep sending
> messaes to a [vline~] while DSP is off, it will eventually bring Pd to its
> knees. The solution is to use a [spigot] which is opened on "pd-dsp-started"
> and closed on "pd-dsp-stopped".
> 
> Actually, the issue should be mentioned in vline~-help.pd, together with the
> possible solution.
> 
> Christof
> 
> On 17.08.2020 02:25, Alexandre Torres Porres wrote:
> > 
> >     On 16.08.2020 05:52, Miller Puckette via Pd-list wrote:
> >     > An artificial example (for simplicity) - I want to apply a Pd
> >     effect to a
> >     > soundfile and write the result out to another file, without
> >     having to wait
> >     > for the length of the file to get the result.?? This could be
> >     done from the
> >     > command line using a batch command, but while you're developing
> >     the patch to
> >     > do it it's much easier to be able to set the process off with a
> >     button from
> >     > inside Pd.
> > 
> > 
> > Great, kind of what I was expecting, but I still needed an example to
> > see how to make this happen :)
> > 
> > Em dom., 16 de ago. de 2020 ??s 08:16, Christof Ressi
> > <info at christofressi.com <mailto:info at christofressi.com>> escreveu:
> > 
> >     My use case was that I had a patch which either produced some
> >     generative
> >     music or processed some soundfile and I wanted to record N seconds as
> >     fast as possible. It's basically like the render function in a DAW
> >     (usually you don't have to start the DAW from the command line to
> >     render
> >     your project :-).
> > 
> > 
> > I also thought about that and I'm really excited to test both things.
> > Hopefully I can have an example of this in my tutorial rght now and
> > release an update. But my attempts here failed and froze Pd :)
> > 
> > Have you already messed with it, Christof?
> > 
> >     But I agree that this needs to documented. Generally, there should
> >     be a
> >     section to document all (public) Pd messages, like [pd dsp(, [pd
> >     quit(,
> >     etc. (What can be considered "public"?)
> > 
> > 
> > I opened an issue for that ( https://urldefense.com/v3/__https://github.com/pure-data/pure-data/issues/1125__;!!Mih3wA!V6aSoF1aPNC06uVdDyYea5WFKdWy0p_QL_hlqSyUMqESkThSno1hgLYLxoMh$
> > ??) and can take care of it as I'm usually handling documentation
> > issues.
> > 
> >     Also [r pd-dsp-started] and [r pd-dsp-stopped], which most people
> >     don't
> >     know about, I guess.
> > 
> > 
> > that's used n the help file of [samplerate~] but I agree it should also
> > be included in this new documentaton section. Anyway, what else would
> > you use it for?
> > 
> > Porres

> #N canvas 505 376 450 300 12;
> #X obj 31 202 noise~;
> #X obj 21 231 writesf~ 2;
> #X obj 89 202 noise~;
> #X msg 60 117 \; pd fast-forward \$1;
> #X obj 83 39 nbx 5 14 -1e+037 1e+037 0 0 empty empty ms 0 -8 0 10 -262144
> -1 -1 0 256;
> #X obj 37 62 f 10000;
> #X obj 37 38 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144 -1
> -1;
> #X obj 21 118 del;
> #X msg 21 173 stop;
> #X msg 83 166 open ./noise.wav \, start;
> #X obj 37 86 t f f b;
> #X text 101 65 write N ms of stereo noise;
> #X text 35 14 go!;
> #X obj 21 150 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144 -1
> -1;
> #X text 40 148 done;
> #X obj 266 132 loadbang;
> #X msg 266 159 \; pd dsp 1;
> #X connect 0 0 1 0;
> #X connect 2 0 1 1;
> #X connect 4 0 5 1;
> #X connect 5 0 10 0;
> #X connect 6 0 5 0;
> #X connect 7 0 13 0;
> #X connect 8 0 1 0;
> #X connect 9 0 1 0;
> #X connect 10 0 7 0;
> #X connect 10 1 3 0;
> #X connect 10 2 9 0;
> #X connect 13 0 8 0;
> #X connect 15 0 16 0;

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