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) (<meta http-equiv="content-type" content="text/html; charset=utf-8"><a href="https://secure.wikimedia.org/wikipedia/en/wiki/Sine_wave">https://secure.wikimedia.org/wikipedia/en/wiki/Sine_wave</a>) 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<span class="Apple-style-span" style="border-collapse: collapse; font-family: arial, sans-serif; font-size: 13px; "> frequency,amplitude,phase and vertical offset. That way I can feed/control those values with a midi controller or a table/array in PureData. </span><div>
<br>Thanks </div><div><br><div class="gmail_quote">On Sun, Sep 4, 2011 at 5:35 AM, Hans-Christoph Steiner <span dir="ltr"><<a href="mailto:hans@at.or.at">hans@at.or.at</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div style="word-wrap:break-word"><div><br></div><div>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.</div>
<div><br></div><div>.hc</div><br><div><div><div></div><div class="h5"><div>On Sep 4, 2011, at 9:22 AM, Rick T wrote:</div><br></div></div><blockquote type="cite"><div><div></div><div class="h5">Greetings All<div><br></div>
<div>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?</div><div><div>Here's an example of one of the 2 equations <a href="http://dl.dropbox.com/u/6576402/questions/eq1.txt" target="_blank">http://dl.dropbox.com/u/6576402/questions/eq1.txt</a></div>
<div>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</div><div> <br></div><div>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?.</div>
<div><br></div><div>If you want to know what I'm creating.</div><div>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. </div>
<div>2) The second option will allow the variables to be controllable/variable using a midi controller and it's audio signal played</div><div><br></div><div>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.</div>
<div><br></div><div>Thanks</div>-- <br><br> </div></div></div> _______________________________________________<br><a href="mailto:Pd-list@iem.at" target="_blank">Pd-list@iem.at</a> mailing list<br>UNSUBSCRIBE and account-management -> <a href="http://lists.puredata.info/listinfo/pd-list" target="_blank">http://lists.puredata.info/listinfo/pd-list</a><br>
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