during the weekend i had the chance to play with a little phatty. one thing i noticed - apart from really loving the colour coded buttons for the multi-purpose encoders and missing aftertouch on the LP - is the behavior of the filter on the LP when set to high resonance.
in my experience, the XMF get pretty "wild" and unpredictable when I use high resonance, the LP behaved. am i doing something wrong? of course, i can set a narrow range on the XY-pad for the resonance control, is that the way it is supposed to be?
also, is there a way to simulate the "overload" on the XMF?
cheers!
XMF filter resonance
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- KVRAF
- 1617 posts since 11 Dec, 2008 from Minneapolis
The XMF, set to self-oscillation, becomes like a carrier operator in FM synthesis; the FilterFM is the modulation depth of the sidechain signal, which acts like a modulating operator. So with increasing resonance values - pushing towards self-oscillation - the FilterFM becomes increasingly effective at modifying the output of the module.
At the highest resonance values, very little FilterFM can quickly become overly atonal for one's purposes; decreasing resonance or decreasing FilterFM both resolve this.
Also, FilterFM can feel a little more sensitive than the FM parameters on FM operators. I think that's because one is usually feeding harmonically rich things into the XMF as a sidechain - it defaults to sidechaining the same channel as it's on. That's a recipe for chaos
At the highest resonance values, very little FilterFM can quickly become overly atonal for one's purposes; decreasing resonance or decreasing FilterFM both resolve this.
Also, FilterFM can feel a little more sensitive than the FM parameters on FM operators. I think that's because one is usually feeding harmonically rich things into the XMF as a sidechain - it defaults to sidechaining the same channel as it's on. That's a recipe for chaos
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- u-he
- 30215 posts since 8 Aug, 2002 from Berlin
The XMF is quite a bit more extreme than my Little Phatty's filter. The XMF's overload is IMHO more aggressive, and resonance goes way beyond the LP.
However, in the after math I find the XMF's resonance to be too loud and annoying in high frequencies. I'm working on a concept to revert this without breaking preset compatibility.
For best results I'd recommend to really use only 2-3 oscillators in "single" mode before the XMF (sometimes less is more... supersaws don't fit here). Don't forget that XMF resonance at 40.00 - 50.00 is already at a point where most digital filters stop. Going beyond that point can be dangerous, but was necessary for enough bite with FilterFM.
Cheers,
Urs
However, in the after math I find the XMF's resonance to be too loud and annoying in high frequencies. I'm working on a concept to revert this without breaking preset compatibility.
For best results I'd recommend to really use only 2-3 oscillators in "single" mode before the XMF (sometimes less is more... supersaws don't fit here). Don't forget that XMF resonance at 40.00 - 50.00 is already at a point where most digital filters stop. Going beyond that point can be dangerous, but was necessary for enough bite with FilterFM.
Cheers,
Urs-
- KVRist
- Topic Starter
- 354 posts since 19 Jul, 2007
thanks guys! yes, lowering the resonance volume would probably be helpful, even simple even bass patches can get really weird, when resonance is to turned up to high which happens to me all them time while playing.
i will keep this in mind and keep resonance, overload and fm in check by assigning them to xys.
i will keep this in mind and keep resonance, overload and fm in check by assigning them to xys.
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- KVRAF
- 13133 posts since 7 May, 2006 from Southern California
Please make this a switchable behavior!!! Many of my patches rely on how the XMFs behave at extreme settings. Perhaps annoying to some but I love it.Urs wrote:However, in the after math I find the XMF's resonance to be too loud and annoying in high frequencies. I'm working on a concept to revert this without breaking preset compatibility.
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- u-he
- 30215 posts since 8 Aug, 2002 from Berlin
But of course... I just need to have the default setting non-annoyingjustin3am wrote:Please make this a switchable behavior!!!
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- KVRAF
- 2685 posts since 14 Jul, 2005 from Australia
Yep, this is the main thing I dislike about the XMF models to be honest. At high resonance settings with the cutoff near full, it rings like hell! If you could fix this while maintaining compatibility with older patches, I would be very very grateful personally! 
The other thing that's worth mentioning is that the Overdrive knob, also drives the output level up, which I think is not desirable. It would be ideal if the level of the patch did not vary a lot when overdrive is increased.
I personally still reach for the VCF models in most cases at the moment.
The other thing that's worth mentioning is that the Overdrive knob, also drives the output level up, which I think is not desirable. It would be ideal if the level of the patch did not vary a lot when overdrive is increased.
I personally still reach for the VCF models in most cases at the moment.