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 Forum index » Clavia Nord Modular » G2 Patches - Completed » Audio In
Model of Moogerfooger MuRF pedal
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tombola



Joined: Mar 11, 2005
Posts: 83
Location: London
Audio files: 3
G2 patch files: 9

PostPosted: Tue Oct 18, 2005 4:00 pm    Post subject: Model of Moogerfooger MuRF pedal Reply with quote  Mark this post and the followings unread

Because I don't have $500, this is an attempt to copy the architecture of the Moogerfooger MuRF pedal: Product page, based on the manual and some audio samples on the site.

It's eight sequenced resonant bandpass filters. There are controls for resonance, attack and decay. They just about work, within very narrow ranges. I was impressed that it was easy to do in one slot - I've made it polyphonic to beef up the sound a bit.

Finding (and unchecking) the Gain Control switches on the filters was a big breakthrough in this patch.

I ran out of morph groups, so only variation 7 also has the filter frequencies mapped (to the pitch stick), which basically sounds like a phaser, but quite amazing. I don't know if it's possible to attach an LFO to a morph group.

I haven't modelled the level faders on the MuRF, although it would be easy enough - I was more interested in the sequencing side. All the variations have different sequences, some roughly copied from the manual.

There's an input switch so you can use audio in, or white noise, or an oscillator, which can be played - there's defiinitely potential to turn this into a synth.

I've posted this in 'completed' because it works and has variations and assigned knobs, but I'm sure it could be greatly improved by someone with more experience than me.

I guess the main conclusion of comparing this with the sound samples on the site is: Analog Moog hardware does sounds much better than something you can build in an evening on a G2.


MuRF MF-105 v2.pch2
 Description:
An attempt to model the Moogerfooger MuRF - eight sequenced resonant bandpass filters. Unfortunately, NMG2 v.1.32 does not have any facility for accurately modelling hardwood end panels.

Download
 Filename:  MuRF MF-105 v2.pch2
 Filesize:  4.89 KB
 Downloaded:  1262 Time(s)


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Last edited by tombola on Wed Oct 19, 2005 8:15 am; edited 1 time in total
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elektro80
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Joined: Mar 25, 2003
Posts: 21977
Location: Norway
Audio files: 14

PostPosted: Tue Oct 18, 2005 4:07 pm    Post subject: Reply with quote  Mark this post and the followings unread

This is great. I haven´t a G2, so I have no way to actually run this patch. However, the MuRF seems to be a oldfashioned stepfiltering patch in-a-box. A great idea.
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BobTheDog



Joined: Feb 28, 2005
Posts: 3861
Location: England
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PostPosted: Sat Oct 22, 2005 12:48 am    Post subject: Reply with quote  Mark this post and the followings unread

I Love this, well done.

I'm having great fun putting guitars through this.

All the best

Andy
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mother misty



Joined: May 13, 2004
Posts: 679
Location: Ghent / Belgium
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G2 patch files: 130

PostPosted: Sun Oct 23, 2005 11:29 pm    Post subject: Reply with quote  Mark this post and the followings unread

Nice patch tombola! I'm having alot of fun putting my machinedrum through this.
Regarding the morph groups, there are some tricks to solve this
* If you take the nord filters instead of the static filters you have res mod inputs, assign a unipolar switch to those and you save 8 morphs
* if you take the "env mod ahd" instead of the "ad/r env" you have attack & decays modulation inputs, assign those to 2 unipolar switches and you save 16 morphs
This is a little more dsp-expensive but you still have 24 free morphs this way (check attachment, red modules are the swithes)
I've also added 8 saturators after the envelopes for a little more dirt Smile
Oh, and yes you can assign a LFO to a morph group. Give the morph group a midi CC, modulate that midi CC with the midi-ctrl send module (see attachment, green modules)


MURF_MF_105_V2_1.PCH2
 Description:

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 Filename:  MURF_MF_105_V2_1.PCH2
 Filesize:  5.44 KB
 Downloaded:  999 Time(s)

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