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 Forum index » Clavia Nord Modular » Nord Modular G2 Discussion
Sawtooth from Triangle (or vice versa)
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ThreeFingersOfLove



Joined: Oct 21, 2004
Posts: 162
Location: Greece
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PostPosted: Thu Sep 30, 2010 5:07 pm    Post subject: Sawtooth from Triangle (or vice versa) Reply with quote  Mark this post and the followings unread

Hi,

I am looking for an elegant way to derive a sawtooth from a triangle waveform or vice versa. The two waves should have the same frequency and should be in phase when they start their cycles.

For instance, I can use a slew limiter with adjustable rise and fall times on a triangle waveform. If the fall time = 0, then it slews only the rise and thus produces an up saw but it's not a very "clean" saw. It's important that the ramp is as linear as possible.

Another way is to fully rectify a sawtooth; this however produces a tri with half the frequency. Plus it has an offset.

I have a few more ideas, but I am looking for the more direct way to do this.
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ian-s



Joined: Apr 01, 2004
Posts: 2579
Location: Auckland, New Zealand
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G2 patch files: 611

PostPosted: Thu Sep 30, 2010 6:48 pm    Post subject: Reply with quote  Mark this post and the followings unread

A couple of methods in this patch. Purple modules give a triangle with same frequency, phase and no offset. Green module gives a triangle that has (I think) 90 phase shift from the first triangle.


saw-tri.pch2
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ThreeFingersOfLove



Joined: Oct 21, 2004
Posts: 162
Location: Greece
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PostPosted: Thu Sep 30, 2010 10:42 pm    Post subject: Reply with quote  Mark this post and the followings unread

Thanks ian-s!

I will check this when I get home. Smile
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