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 Forum index » Clavia Nord Modular » Nord Modular G2 Discussion
Could G2 emulate a Lambda ?
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a-grume



Joined: Oct 07, 2007
Posts: 7
Location: France

PostPosted: Fri Nov 23, 2007 9:57 am    Post subject: Could G2 emulate a Lambda ? Reply with quote  Mark this post and the followings unread

Hi all,

I love my Korg Lambda but it's not midi, do you think the G2 could emulate the Lambda string "chorus" ?

Perhaps you already have a patch like this ? Wink

Thanks a lot for help !
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a-grume



Joined: Oct 07, 2007
Posts: 7
Location: France

PostPosted: Mon Nov 26, 2007 11:54 am    Post subject: Reply with quote  Mark this post and the followings unread

HELP Laughing

Embarassed
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Blue Hell
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Joined: Apr 03, 2004
Posts: 23498
Location: The Netherlands, Enschede
Audio files: 262
G2 patch files: 320

PostPosted: Mon Nov 26, 2007 12:24 pm    Post subject: Reply with quote  Mark this post and the followings unread

I don't know ... sorry, there are some chorus patches though in the archive .
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Jan
also .. could someone please turn down the thermostat a bit.
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ian-s



Joined: Apr 01, 2004
Posts: 2664
Location: Auckland, New Zealand
Audio files: 42
G2 patch files: 626

PostPosted: Mon Nov 26, 2007 1:29 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hi a-grume

I tracked down the schematics and some samples on the web.

It was an interesting design, no BBD chorus like it's contemporaries. Instead it uses a three phase lfo to modulate three oscillators that each go to a top octave divider.

This is different to a typical 3 phase chorus which mixes the original signal with the three modulated ones. I think that the string tabs only use two of the three available phases.

The only vcf is reserved for the brass stop, all the other stops use a simple fixed BP and LP filter.

I tried to come up with a patch but it did not sound very close to the samples so I didn't post it.

To be honest, I didn't much like the sound of the samples so was not too enthusiastic. Perhaps you have some better samples that illustrate what you like about the sound?

Regards

Ian
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ian-s



Joined: Apr 01, 2004
Posts: 2664
Location: Auckland, New Zealand
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G2 patch files: 626

PostPosted: Mon Nov 26, 2007 2:05 pm    Post subject: Reply with quote  Mark this post and the followings unread

g2ian wrote:
no BBD chorus like it's contemporaries.


Embarassed I missed page six of the schematics, it does have a chorus (in addition to the three phase master osc modulation).

Back to patching.

Still interested in a good quality sample, single notes preferred Smile
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ian-s



Joined: Apr 01, 2004
Posts: 2664
Location: Auckland, New Zealand
Audio files: 42
G2 patch files: 626

PostPosted: Mon Nov 26, 2007 3:08 pm    Post subject: Reply with quote  Mark this post and the followings unread

Here we go

Although the organ style dividers produce only square waves, different footages are summed to produce an stepped approximation of a sawtooth so I use sawtooth as the starting point in the poly area.

A three phase modulation is in the FX area and applied to the VA via internal midi so the slot values should be changed if you load into a slot other than A. Note that the FM level knob is being modulated which sort of gives a non Octave/V FM.

The output section is just a couple of filters and the final chorus.

This is just the string part of the ensemble section but might be useful for a starting point. It sounds quite nice and uses little DSP and Memory.

Edit: forgot to connect third LFO to sync and master rate and adjust phase, uploaded fix.


lambda2.pch2
 Description:
korg lambda strings

Download
 Filename:  lambda2.pch2
 Filesize:  2.07 KB
 Downloaded:  1561 Time(s)

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