filter feedback patch

[Vader77]

On my old AN1X I fond the filter feedback function very useful for fattening up the VCO sound and giving the tone a more analogue feel.

I seem to recall ages ago seeing some patch diagram somewhere to replicate this feature on the Nord Modular.

Does anyone have a link to the patch diagram or better still a preset for the patch itself?

cheers

[daksha]

Hi! I have both the An1x & the NM G1, so I understand what you want to do...and I think is possible. The graph at pag. 69 in the AN1x manual shows the signal path...and shouldn't be so difficult to be implemented. Anyway, realizing it depends from the elements in the patch you are working on.

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feedback.JPG
Description:	An1x Feedback signal path.
Filesize:	11.45 KB
Viewed:	8439 Time(s)

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[daksha]

A mixer with a free input before the filter section should do the trick

[lamptablecomputer]

http://www.cim.mcgill.ca/~clark/nordmodularbook/nm_filters.html#analog

just dont forget the level inverter in the feedback path

[daksha]

[lamptablecomputer]

Filters induce a phase shift, its just to correct this phase shift in the feedback path. Short answer is, if you dont put an inverter it wont work.

[daksha]

[daksha]

Well, I've tryed and am a bit perplex about results...with the inverted signal in feedback I have a kind of attenuation over the global signal, without inverter I have a stronger signal, more similar to the result with the An1x.
But it was late night, so maybe I did something wrong...I'll try today from scratch with a new patch.

[lamptablecomputer]

[daksha]

No problem at all !
Trials & errors are generally the biggest part of the game