Audacity Forum

Posted: **Sat Aug 25, 2012 9:19 am**

Try this:

(setq start-frequency 10) ; initial frequency in kHz
(setq end-frequency 1) ; final frequency in kHz


(let* ((ny (/ *sound-srate* 2))
       (f1 (min (* start-frequency 1000) ny))
       (f2 (min (* end-frequency 1000) ny)))
  (lp (lp s (pwlv f1 1 f2))(pwlv f1 1 f2)))

The start and end frequencies must be less than half of the track sample rate.

Posted: **Sat Aug 25, 2012 7:19 pm**

Perfect, now I have to just fool around with it until it sounds right.

I have this little piece of code here that converts any waveform into non-aliased triangle (a little mis-shapen though), I'll try and fix it up and create one for saw and square.

(mult 2.0 (sum (snd-abs s) -0.5))

Posted: **Mon Aug 27, 2012 4:56 am**

sites.google.com/site/nmoakman/test/fsweep.dll

http://www.youtube.com/watch?v=EXCQrnr9 ... ture=g-u-u

Check out this little plugin that Nick Oakman made. He owns the Youtube channels alarmsynthsrus and guitarguy19852.

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