# LFO 1 - Uses of copied waveforms for HF LFO mode?

**URL:** <https://forum.udo-audio.com/t/lfo-1-uses-of-copied-waveforms-for-hf-lfo-mode/487>\
**Category:** UDO Audio Gear\
**Created:** [23 June 2021 01:22 UTC](https://forum.udo-audio.com/t/lfo-1-uses-of-copied-waveforms-for-hf-lfo-mode/487 "2021-06-23T01:22:52Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![MOOGelPackung](https://avatars.discourse-cdn.com/v4/letter/m/a3d4f5/32.png) [@MOOGelPackung](https://forum.udo-audio.com/u/MOOGelPackung)\
**Post date:** [23 June 2021 21:30 UTC](https://forum.udo-audio.com/t/lfo-1-uses-of-copied-waveforms-for-hf-lfo-mode/487/2 "2021-06-23T21:30:38Z")

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> [@EveningsEmpire](#):
>
> I’m attempting to wrap my head around how to incorporate LFO 1 into patches using high frequency mode and copying over waveforms from DDS1 to the LFO in HF mode.

In HF mode with keytracking you simply have a third oszillator and by using the DELAY slider some kind of minimalistic wavemorphing.

In HF mode without keytracking you could use it like the fixed pipes (drones) of a bagpipe.  
Another interesting patch idea is to use it as a very deep sawtooth that stimulates the filter resonance and than play the filter with keytracking.  
An easy example for that:

[p6\_PlayTheFilter.s6](https://forum.udo-audio.com/uploads/short-url/nCOwGV1lx2GD8pKwgL3Ts0VgTEz.s6) (35.4 KB)

… with this settings:

 ![c6c_PlayTheFilter](https://europe1.discourse-cdn.com/flex017/uploads/udo_audio/original/1X/b2cd1b78cf2752caf8c3a127015eacb5100603bb.png)

You can try to use other waveforms (see [Waveform and Spectrum visualization](https://forum.udo-audio.com/t/waveform-and-spectrum-visualization/448) to see how they look), but I think the effect of the melodic filter ringing comes best with a simple sawtooth.

> [@EveningsEmpire](#):
>
> I feel like this is one of the points that could get sounds out of the Super 6 that most other hardware synths don’t do, but maybe I’m wrong on that.

Some other synths have a function to disable keytracking for regular VCOs what results in the same effect.

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