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 Forum index » Clavia Nord Modular » G2 Patches - Completed » Classic
MMG2
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FlowerP



Joined: Jan 01, 2007
Posts: 38
Location: Sweden
Audio files: 1
G2 patch files: 73

PostPosted: Mon Jan 01, 2007 7:15 am    Post subject: MMG2
Subject description: Memorymoog emulation
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MMG2 ("MemoryMooG2") is an attempt at emulating Moog's classic polysynth Memorymoog.

Background
I got tired of constant worries about my old analog equipment breaking down. The noise from my Memorymoog's internal fan was irritating. However, there were a few of my own patches that I wanted to keep. So a few years ago I started looking for a Memorymoog replacement. First I bought an Alesis Andromeda. That is a woderful synth in it's own right, but it can not replace a Memorymoog. The Andromeda has just 2 VCOs per voice. The keyboard mode "Legato" is somewhat broken and causes audible artifacts. I was able to recreate most of my Memorymoog patches on the Andromeda, but I was not satisfied with the sound. Later I bought a Creamware Minimax ASB. This is also a wonderful synth with powerful sound. By design it does not reproduce all aspects of the Memorymoog's architecture. Thus it is also unable to recreate my Memorymoog sounds. Finally I turned to the Nord Modular G2 Engine that I had already owned for some time. I read the Memorymoog schematics, patched equivalent "circuits" on G2 and tuned the patch by comparing with my real Memorymoog. Step by step the G2 patch came closer to sounding just like the Memorymoog. When close enough, I recreated my favourite Memorymoog patches on the G2.

About MMG2
By adding distortion/overdrive modules both before and after the G2 Classic filter, the main character of the Memorymoog is captured. Even at high resonance settings the G2 sounds remarkably authentic. The only situation where the difference between original and MMG2 is obvious is when the filter is controlled by a very fast envelope. Then the Memorymoog has a "woody" character to it's sound that is absent on the G2.

VCF Keyboard Tracking on the Memorymoog is controlled by two switches ("1/3" and "2/3"). Initially I replicated this structure in MMG2. When recreating patches with MMG2, I found that sometimes I had to adjust the tracking amounts slightly to get the most accurate reproduction of the original sound. Later I changed the Keyboard Tracking control from two switches to a single continuous control. "1/3" corresponds to 16.4, "2/3" to 33.6 and "3/3" to 50.

A few facilities are missing from MMG2:
    * No oscillator sync. I'm not a big fan of sync sounds, so to reduce patch load sync was omitted.

    * No simultaneous waveforms. The Memorymoog VCOs offer sawtooth, pulse and triangle wave simultaneously. Reproduction of this facility on the G2 would have a high patch load cost. Very few of my favourite patches actually use simultaneous waveforms. Therefore, in order to reduce patch load MMG2 offers just a single waveform selection for each oscillator.

    * Envelope Keyboard follow is not implemented. It is easy to add a keyboard morph to the timed envelope segments. To make this controllable by a single on-off switch is a bit harder. Keeping patch load down seems more important, so envelope keyboard follow is omitted from MMG2.

    * Envelope Unconditional Contour is comparable to Keyboard follow in that I don't know how to implement it in an easily switchable way and at the same time inexpensively. Therefore Unconditional Contour remains unimplemented.

    * No Unison mode. Once again, I'm simply not that interested in this facility, so I haven't bothered to implement it. I suppose it is possible to add a Unison building block to the FX area, if you really want Unison.


The future
For me MMG2 sounds close enough to a Memorymoog. Consequently I recently sold my Memorymoog. Now I can enjoy my old Moog patches without worrying about when the synth will break down. I'm already working on a similar emulation project for Oberheim Matrix-6. It is not quite finished yet, but it will hopefully be during 2007.


MMG2_parameters.jpg
 Description:
MMG2 parameter mapping. The controls for Voice Modulation are mapped to the Effect section. Glide, Pitch Bend Depth and Octave Shift are adjusted in the Patch Settings window.
 Filesize:  65.83 KB
 Viewed:  251 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

MMG2_parameters.jpg



MMG2_layout.jpg
 Description:
MMG2 module layout. The pinkish-grey modules are the user adjustable parts of the patch, whereas the blue modules are preset internal parts of the patch and should not be changed.
 Filesize:  418.63 KB
 Viewed:  290 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

MMG2_layout.jpg



MMG2-53.pch2
 Description:
Polyphonic organ sound.

Download
 Filename:  MMG2-53.pch2
 Filesize:  5.34 KB
 Downloaded:  1014 Time(s)


MMG2-32.pch2
 Description:
Polysynth.

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 Filename:  MMG2-32.pch2
 Filesize:  5.34 KB
 Downloaded:  1099 Time(s)


MMG2-01.pch2
 Description:
Monophonic sound.

Download
 Filename:  MMG2-01.pch2
 Filesize:  5.34 KB
 Downloaded:  1035 Time(s)


Last edited by FlowerP on Mon Aug 20, 2007 11:18 pm; edited 1 time in total
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seraph
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PostPosted: Mon Jan 01, 2007 7:22 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi FlowerP
welcome to electro-music.com Very Happy
(impressive first post Exclamation )

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FlowerP



Joined: Jan 01, 2007
Posts: 38
Location: Sweden
Audio files: 1
G2 patch files: 73

PostPosted: Mon Jan 01, 2007 7:29 am    Post subject: Reply with quote  Mark this post and the followings unread

More MMG2 patches.


MMG2-02.pch2
 Description:
Monophonic patch with high resonance.

Download
 Filename:  MMG2-02.pch2
 Filesize:  5.34 KB
 Downloaded:  875 Time(s)


MMG2-05.pch2
 Description:
Monophonic patch, single triggered. This is the patch that differs most from the original Memorymoog patch. The G2 filter reacts differently to a fast envelope.

Download
 Filename:  MMG2-05.pch2
 Filesize:  5.34 KB
 Downloaded:  877 Time(s)


MMG2-15.pch2
 Description:
Monophonic, delayed vibrato.

Download
 Filename:  MMG2-15.pch2
 Filesize:  5.34 KB
 Downloaded:  874 Time(s)


MMG2-16.pch2
 Description:
Monophonic. Inspired by Rick Wakeman's Journey To The Centre Of The Earth.

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 Filename:  MMG2-16.pch2
 Filesize:  5.34 KB
 Downloaded:  936 Time(s)


MMG2-17.pch2
 Description:
Monophonic. Inspired by UK's Rendezvous 6.02.

Download
 Filename:  MMG2-17.pch2
 Filesize:  5.34 KB
 Downloaded:  817 Time(s)


Last edited by FlowerP on Mon Aug 20, 2007 11:20 pm; edited 1 time in total
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FlowerP



Joined: Jan 01, 2007
Posts: 38
Location: Sweden
Audio files: 1
G2 patch files: 73

PostPosted: Mon Jan 01, 2007 7:41 am    Post subject: Reply with quote  Mark this post and the followings unread

More MMG2 patches.


MMG2-18.pch2
 Description:
Monophonic. Inspired by UK's Nothing To Lose.

Download
 Filename:  MMG2-18.pch2
 Filesize:  5.34 KB
 Downloaded:  859 Time(s)


MMG2-23.pch2
 Description:
Monophonic. Inspired by Yes's And You And I.

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 Filename:  MMG2-23.pch2
 Filesize:  5.34 KB
 Downloaded:  890 Time(s)


MMG2-29.pch2
 Description:
Monophonic. Inspired by a MOTM demo by Ken Elhardt. http://www.synthtech.com/demos.html http://www.synthtech.com/demo/motmbrass.mp3

Download
 Filename:  MMG2-29.pch2
 Filesize:  5.34 KB
 Downloaded:  866 Time(s)


MMG2-31.pch2
 Description:
Polyphonic. Inspired by UK's In The Dead Of Night.

Download
 Filename:  MMG2-31.pch2
 Filesize:  5.34 KB
 Downloaded:  892 Time(s)


MMG2-36.pch2
 Description:
Polyphonic. Clavinet-type sound.

Download
 Filename:  MMG2-36.pch2
 Filesize:  5.34 KB
 Downloaded:  850 Time(s)


Last edited by FlowerP on Mon Aug 20, 2007 11:22 pm; edited 1 time in total
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FlowerP



Joined: Jan 01, 2007
Posts: 38
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Audio files: 1
G2 patch files: 73

PostPosted: Mon Jan 01, 2007 7:55 am    Post subject: Reply with quote  Mark this post and the followings unread

Still more MMG2 patches.


MMG2-47.pch2
 Description:
Monophonic. Not inspired by any particular song, but makes me think of Pink Floyd's Wish You Were Here.

Download
 Filename:  MMG2-47.pch2
 Filesize:  5.34 KB
 Downloaded:  910 Time(s)


MMG2-64.pch2
 Description:
Monophonic. A bit odd, this one. Originally a "Taurus" preset from a softsynth, recreated on my Memorymoog and now re-recreated with MMG2. Never sounded much like a real Taurus though.

Download
 Filename:  MMG2-64.pch2
 Filesize:  5.34 KB
 Downloaded:  887 Time(s)


MMG2-65.pch2
 Description:
Rather similar to MMG2-64.

Download
 Filename:  MMG2-65.pch2
 Filesize:  5.34 KB
 Downloaded:  912 Time(s)


MMG2-76.pch2
 Description:
Monophonic, single triggered. Inspired by a song on Rick Wakeman's The Six Wives Of Henry VIII.

Download
 Filename:  MMG2-76.pch2
 Filesize:  5.34 KB
 Downloaded:  871 Time(s)


MMG2-77.pch2
 Description:
Polyphonic, high resonance.

Download
 Filename:  MMG2-77.pch2
 Filesize:  5.34 KB
 Downloaded:  797 Time(s)


Last edited by FlowerP on Mon Aug 20, 2007 11:24 pm; edited 1 time in total
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FlowerP



Joined: Jan 01, 2007
Posts: 38
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G2 patch files: 73

PostPosted: Mon Jan 01, 2007 7:58 am    Post subject: Reply with quote  Mark this post and the followings unread

And a few final MMG2 patches.


MMG2-OctaveLead1.pch2
 Description:
Another monophonic lead sound created with MMG2 on a G2X.

Download
 Filename:  MMG2-OctaveLead1.pch2
 Filesize:  5.34 KB
 Downloaded:  629 Time(s)


MMG2-Skrzek1.pch2
 Description:
A monophonic lead sound created with MMG2 on a G2X. Add vibrato with Mod wheel.

Download
 Filename:  MMG2-Skrzek1.pch2
 Filesize:  5.34 KB
 Downloaded:  594 Time(s)


MMG2-99.pch2
 Description:
Polyphonic. Rather harsh strings.

Download
 Filename:  MMG2-99.pch2
 Filesize:  5.34 KB
 Downloaded:  601 Time(s)


Last edited by FlowerP on Mon Aug 20, 2007 11:30 pm; edited 1 time in total
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Blue Hell
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Joined: Apr 03, 2004
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PostPosted: Mon Jan 01, 2007 8:01 am    Post subject: Reply with quote  Mark this post and the followings unread

Exclamation Wow Exclamation

What an entrance, welcome

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FlowerP



Joined: Jan 01, 2007
Posts: 38
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PostPosted: Mon Jan 01, 2007 8:17 am    Post subject: Reply with quote  Mark this post and the followings unread

I have recorded a rather sloppy demo of some MMG2 patches. I also recorded an even sloppier demo of MMG2 with some live tweaking. Since I have a G2 Engine, the tweaking was made via 7 MIDI sliders on my controller keyboard. This put a limit on the number of parameters I could access. Using a G2 keyboard or a MIDI controller with more knobs/sliders will of course allow more limitless tweaking.

Finally, a suggestion for those who don't own a G2 yet. MMG2 will happily run on Clavia's G2 Demo software, albeit in monophonic mode. Since quite a few of my MMG2 patches are monophonic anyway, this is a minor limitation. Think of this as a free monophonic Memorymoog!
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dorremifasol



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PostPosted: Mon Jan 01, 2007 10:44 am    Post subject: Reply with quote  Mark this post and the followings unread

Thank you very much FlowerP for the sounds! Smile
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Saskia



Joined: Nov 30, 2004
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PostPosted: Mon Jan 29, 2007 1:32 pm    Post subject: Reply with quote  Mark this post and the followings unread

Wow! Those are some really great sounds - and what great taste you have Smile I love Yes and UK so it was nice to hear you try your hand at a few wellknown Wakeman/Jobson solos in the demo. It brought a smile to my face.
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PostPosted: Thu Feb 01, 2007 6:07 am    Post subject: Reply with quote  Mark this post and the followings unread

Very nice.
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davep



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PostPosted: Fri Feb 02, 2007 9:55 pm    Post subject: Reply with quote  Mark this post and the followings unread

Welcome, and well done! At first I was wondering why you used sequencers instead of clocked random modules to generate the quasi-random pitch fluctuations for making the oscs sound more analog but then I realized that the sequencers consume less DSP than the random module, and the difference was juuuuust enough to keep the DSP usage below 50% and keep the polyphony high. Quite clever!
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3phase



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PostPosted: Sun Feb 04, 2007 7:29 pm    Post subject: Reply with quote  Mark this post and the followings unread

i combined a few of the patches by copying them to variations with the parameter copy..and stacked them in a performance as somkind of fat synth organ


mmg2 combo2.prf2
 Description:

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 Filename:  mmg2 combo2.prf2
 Filesize:  21.37 KB
 Downloaded:  870 Time(s)

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cappy2112



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PostPosted: Mon Feb 05, 2007 9:41 pm    Post subject: Re: MMG2
Subject description: Memorymoog emulation
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FlowerP wrote:

I'm already working on a similar emulation project for Oberheim Matrix-6. It is not quite finished yet, but it will hopefully be during 2007.


I'm interested in seeing how you implement the tracking generators of the Matrix6 on the G2. I've got an Xpander which also has tracking generators. They can do such wacky things to a patch. At times they can be amazing- other times they drive you nuts Smile

It's really a shame there wasn't more CPU left to get either more track generators or be able to modulate the sources or amounts for the inputs to the track generators. Can you image that????

There's only so much you can squeeze out of a 1.89MHZ 6809 but Marcus Ryle & company really mastered it quite well.
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FlowerP



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PostPosted: Tue Feb 06, 2007 1:48 am    Post subject: Re: MMG2
Subject description: Memorymoog emulation
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cappy2112 wrote:
FlowerP wrote:

I'm already working on a similar emulation project for Oberheim Matrix-6. It is not quite finished yet, but it will hopefully be during 2007.


I'm interested in seeing how you implement the tracking generators of the Matrix6 on the G2.

My implementation of MatrixG2 isn't quite finished yet. Right now (and probably also when publicly announced) it comes in two versions. There is a sparse version that keeps patch load under 50 % in order to maximize the number of available voices. This version omits sawtooth-triangle waveshaping, filter fm and the tracking generator. The other version includes those facilities at the cost of patch load >70 % and thus half the number of voices. Both versions omit ramp generator 2 and oscillator sync modes 1 and 2. More important, none of the versions implement a true modulation matrix. Due to patch complexity and patch load considerations I have hard wired the (IMO) most important modulations.

cappy2112 wrote:
It's really a shame there wasn't more CPU left to get either more track generators or be able to modulate the sources or amounts for the inputs to the track generators. Can you image that????

There's only so much you can squeeze out of a 1.89MHZ 6809 but Marcus Ryle & company really mastered it quite well.

Yes, I agree. For its time, the Matrix-6 was an extremely capable synth at an affordable price. Some aspects of the Matrix-6 sound are very hard to emulate on more modern synths.
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FlowerP



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PostPosted: Tue Feb 06, 2007 2:20 am    Post subject: Reply with quote  Mark this post and the followings unread

davep wrote:
Welcome, and well done! At first I was wondering why you used sequencers instead of clocked random modules to generate the quasi-random pitch fluctuations for making the oscs sound more analog but then I realized that the sequencers consume less DSP than the random module, and the difference was juuuuust enough to keep the DSP usage below 50% and keep the polyphony high. Quite clever!

My choice of modules for "pseudo-analogue" detuning is quite intentional. MMG2 has evolved through many stages. I tried using clocked random modules, but didn't think they added anything desirable to the sound. By observing G2 oscillator waveforms on oscilloscope, I get the impression that the oscillators by themself have a very slight pitch drift.

In monophonic patches I want the oscillator detuning to be predictable. Note that the sequencer modules have random settings except for stage 1, which is set to 0 in all sequencers. Thus a monophonic patch will always sound as originally programmed. To add some "analogueness" the keyboard tracking of oscillator 2 and 3 is not quite 100 %.

Polyphonic patches, on the other hand, gain from a slight detuning between voices. Due to patch load reasons the voice detuning sequencer for oscillator 3 also controls filter frequency. If you turn the oscillators off, enable noise, set noise level to 1, increase filter resonance to 100, disable filter envelope and tune filter frequency to the audible frequency range, you can hear how the voices in a polyphonic patch have different filter frequency. The detuning amount was modelled after my own, not recently calibrated, Memorymoog.
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