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Author Topic: Origin 4-pole low pass filter - modeled after Curtis / CEM?  (Read 530 times)

hermitnerd

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Origin 4-pole low pass filter - modeled after Curtis / CEM?
« on: January 28, 2014, 05:07:14 pm »

I have been doing some very close side by side comparisons between the Origin filter and a Prophet, and the filter really does seem to be based on the Curtis / CEM filter. Philippe can you comment on this? :)

Philippe

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Re: Origin 4-pole low pass filter - modeled after Curtis / CEM?
« Reply #1 on: January 28, 2014, 05:48:24 pm »
Which filter type? Do you mean the filter typed "Origin"?
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hermitnerd

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Re: Origin 4-pole low pass filter - modeled after Curtis / CEM?
« Reply #2 on: January 28, 2014, 05:52:25 pm »
Which filter type? Do you mean the filter typed "Origin"?

Yes exactly. When I set it to 4-pole low pass, turn the resonance up all the way and do a very slow envelope release, and do the same on my Prophet, the characteristics are very close.

Philippe

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Re: Origin 4-pole low pass filter - modeled after Curtis / CEM?
« Reply #3 on: January 29, 2014, 09:21:27 am »
I don't think it has been modelled based on the Curtis / SEM filter. The starting point was to design a lower cost filter compared to the emulated ones (Minimoog, CS80,...). Of course in the context of Origin "lower cost" doesn't mean low quality :)
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synthguy99

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Re: Origin 4-pole low pass filter - modeled after Curtis / CEM?
« Reply #4 on: January 29, 2014, 07:48:08 pm »
I'll have to say that while it's been ages since I've been able to play a Prophet 5, from the music I have with Prophet used on it, the Origin filter is very close.  I used it to recreate some Prophet and Oberheim OB-8 patches from what I remember of those original synths, and have been very satisfied with it.
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