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 Forum index » Clavia Nord Modular » G2 Patches - Experimental
Korg mono/poly emulation
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thapoke



Joined: Oct 07, 2005
Posts: 42
Location: Glasgow, UK
Audio files: 1
G2 patch files: 5

PostPosted: Fri Feb 19, 2016 8:30 am    Post subject: Korg mono/poly emulation Reply with quote  Mark this post and the followings unread

Hello, I finally have a G2!

I have been trying to recreate my korg monopoly as I have to sell it.

The monophonic and arpeggiator modes are easy enough, but the paraphonic section is more difficult. The monopoly has 4 oscillators going through one filter and VCA with an adsr envelope each.

There are 2 problems

1.

In paraphonic mode the key assigner plays oscillator 1 for the first note and if that note is still held down it will play oscillator 2 , then 3 then 4...

If you let go of the first key held down it free's up oscillator 1 - so that will be used for the next key struck.

So the assigner will always play the lowest free oscillator that is not already held down.

I have not been able to recreate this using the status module or the counter - it seems to always assign a new voice and step through the voices in a random order depending on what has been played previously... it should always start on osc 1 then go to the next available oscillator that isn't held down already

2.

The envelopes can be set to retrigger every time a new note is struck or to have a single trigger on the first note.

Single trigger mode is easy using the mono keyboard module but multiple triggering using the keyboard module makes the envelopes retrigger both when you strike a key and when you release it - it should only happen on a key on event..

this thread has the same problem but i don't know if it was resolved.. http://srv4.electro-music.com/forum/viewtopic.php?highlight=paraphonic&t=30835

Any help appreciated!


Monopoly multi.pch2
 Description:
this is the patch with the weird retriggering problem and assignment problems

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 Filename:  Monopoly multi.pch2
 Filesize:  3.04 KB
 Downloaded:  273 Time(s)


Monopoly single.pch2
 Description:
this has strange voice assignment but correct envelope single trigger mode

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 Filename:  Monopoly single.pch2
 Filesize:  3.06 KB
 Downloaded:  278 Time(s)


Monopoly arp.pch2
 Description:
this one is why the monopoly is good!

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 Filename:  Monopoly arp.pch2
 Filesize:  2.98 KB
 Downloaded:  348 Time(s)


Last edited by thapoke on Fri Feb 19, 2016 8:39 am; edited 1 time in total
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thapoke



Joined: Oct 07, 2005
Posts: 42
Location: Glasgow, UK
Audio files: 1
G2 patch files: 5

PostPosted: Fri Feb 19, 2016 8:39 am    Post subject: Reply with quote  Mark this post and the followings unread

this mono poly patch is in the archive but it doesn't work the same as a monopoly , keyassignements are random http://srv4.electro-music.com/forum/viewtopic.php?highlight=korg+mono+poly&t=4665
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thapoke



Joined: Oct 07, 2005
Posts: 42
Location: Glasgow, UK
Audio files: 1
G2 patch files: 5

PostPosted: Sun Feb 21, 2016 7:41 am    Post subject: Reply with quote  Mark this post and the followings unread

apologies this is in the wrong section, can this be moved to experimental patches please?

also I have been trying to get my head around the diy pattern appegiator building block which has a keyboard scanning circuit here http://www.electro-music.com/forum/topic-39414.html

- could this be used to make a 4 voice keyboard scanning/ voice assigner?
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Blue Hell
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Joined: Apr 03, 2004
Posts: 22201
Location: The Netherlands, Enschede
Audio files: 208
G2 patch files: 319

PostPosted: Sun Feb 21, 2016 8:30 am    Post subject: Reply with quote  Mark this post and the followings unread

thapoke wrote:
can this be moved to experimental patches please?


Of course Smile

Sorry to not be able to help out though.

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thapoke



Joined: Oct 07, 2005
Posts: 42
Location: Glasgow, UK
Audio files: 1
G2 patch files: 5

PostPosted: Mon Feb 22, 2016 6:30 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanks blue hell

Still trying to get this to work, I have got the multi trigger mode to work by sending a pulse to the fx section every time a new voice is triggered, which is getting closer to a monopoly in polyphonic multi trigger mode...

only the release stage of the amp envelope is triggered though, but this is an approximation of some monopoly patches.

If you've never played a monopoly try holding a 2 note chord in the upper part of the keyboard and then play a baseline - every new bass note triggers the chord again... or hold down a bass note and play different chords - every new chord triggers the bass note.... oh the joys of paraphony

still can't get the voice allocation to work in a predictable manner but I'm working on it...


Monopoly multi2.pch2
 Description:

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 Filename:  Monopoly multi2.pch2
 Filesize:  3.16 KB
 Downloaded:  320 Time(s)

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Electromagnetic Wave



Joined: Apr 28, 2013
Posts: 205
Location: Kebek
G2 patch files: 30

PostPosted: Tue Feb 23, 2016 3:30 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi thapoke! Glad for you !

Quote:
In paraphonic mode the key assigner plays oscillator 1 for the first note and if that note is still held down it will play oscillator 2 , then 3 then 4...

I think you have adapted the technique at the end of the thread you posted before in your last patch... Here is another way in the patch I attached. Tell me if this is what you want please and if you understand it. That's just a start. Need to dig a little bit on the release mode.


Quote:
try holding a 2 note chord in the upper part of the keyboard and then play a baseline - every new bass note triggers the chord again... or hold down a bass note and play different chords - every new chord triggers the bass note

Probably you can do this with the 'KB Split' function. Just need to share the trigger from the lower (bass) and upper (chord) each other.

Edit: The tuning in the SeqCtrl need to be set properly but the main idea is there.


polytrig32.pch2
 Description:
Building Block - Tring to do this : "key assigner plays oscillator 1 for the first note and if that note is still held down it will play oscillator 2 , then 3 then 4"

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 Filename:  polytrig32.pch2
 Filesize:  7.13 KB
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thapoke



Joined: Oct 07, 2005
Posts: 42
Location: Glasgow, UK
Audio files: 1
G2 patch files: 5

PostPosted: Tue Mar 08, 2016 5:05 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hey thanks for this, Ill have a proper look soon, had no time recently, cheers
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tomhall



Joined: Mar 14, 2016
Posts: 14
Location: Los Angles

PostPosted: Tue Jul 26, 2016 4:26 pm    Post subject: Reply with quote  Mark this post and the followings unread

killer patch
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Electromagnetic Wave



Joined: Apr 28, 2013
Posts: 205
Location: Kebek
G2 patch files: 30

PostPosted: Fri Apr 07, 2017 11:19 am    Post subject: Reply with quote  Mark this post and the followings unread

I made another version to replace the sequencers used for tuning by the keyboard pitch output. Take less ressources. I added another osc, now 4.

I added lfo for each osc and some morphing with the modwhell on all 8 variations just for fun. After the 4 notes is pressed it's possible to just keep hold the last note from the chord. Usefull to tweak parameters with one hand when a chord is active.


polytrigEWv22.pch2
 Description:

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 Filename:  polytrigEWv22.pch2
 Filesize:  3.47 KB
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