Thanks for the information. I've been able to find instructions on how to create a hello world C-external but not one that does a simple sinewave equation like A*sin(w*t+p) ( https://secure.wikimedia.org/wikipedia/en/wiki/Sine_wave) Does anyone have one or know where to find one. It makes sense to make a C external and create inputs for the values of frequency,amplitude,phase and vertical offset. That way I can feed/control those values with a midi controller or a table/array in PureData.
Thanks On Sun, Sep 4, 2011 at 5:35 AM, Hans-Christoph Steiner <h...@at.or.at>wrote: > > A .pd file is a text file, so you can just open your Pd patch in a text > editor, and paste in the equation. But honestly with something that big, I > think making a C external might be easier in the long run. > > .hc > > On Sep 4, 2011, at 9:22 AM, Rick T wrote: > > Greetings All > > I have 2 large equations that I would like to use with the expr command. > Is it possible to import a text file into the expr command? > Here's an example of one of the 2 equations > http://dl.dropbox.com/u/6576402/questions/eq1.txt > Basically it's a 1 second periodic signal with sample rate at 44100 which > the equation gives me control over the frequency,amplitude,phase and > vertical offset > > I do have the ability to create a wave (audio) file of the equation first > and import the wave file into PureDate, but will I have the same control > over the frequency,amplitude,phase and vertical offset that the equation > gives me?. > > If you want to know what I'm creating. > 1) The first option will import a text file into a table/array that will > control the variables of the equations that will vary > frequency,amplitude,phase and vertical offset over time. > 2) The second option will allow the variables to > be controllable/variable using a midi controller and it's audio signal > played > > I know Puredata can do this very well with small equations and the expr > command but using large equations I'm not sure. Also if I should be doing > this in a different way please let me know I'm always willing to learn > something new. > > Thanks > -- > > _______________________________________________ > Pd-list@iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > > > > > > ---------------------------------------------------------------------------- > > If nature has made any one thing less susceptible than all others of > exclusive property, it is the action of the thinking power called an idea, > which an individual may exclusively possess as long as he keeps it to > himself; but the moment it is divulged, it forces itself into the possession > of everyone, and the receiver cannot dispossess himself of it. - > Thomas Jefferson > > >
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