Rapture : keytrack to control lfo speed

Anybody else having trouble with this? I set the mod matrix up .. note# to lfo pitch... it doesnt seem to effect the lfo speed the way it should! I want to get sampler like effects. ..i.e. modulation goes faster as I play up the keyboard... also any insight to make the lfo pitch double each octave would be great.. i COULD BE WRONG BUT TO MY EARS IT JUST SEEMS TO SPEED UP OF SLOW DOWN THE LFO BASED ON THE MOD matrix amount.... Big up drum n bass and all SYNTH HEADZ!!

thanks b rock you are the man around here... I will experiment once I get home. on the lfo freq doubling per octave I was trying to get the effect you would by sampling or the doubling in beating speed you get when you move up the keyboard on a sound with detuned osc. I know I could just resample but I wanted to do it in the original patch. thanks again! this was easy on my micro Q you just set the lfo keytrack to 100% and it would double each oct just like a normal osc.

Thanks again... your knowlegde is very deep! Im not sure you quite understand my question. Its not the pitch lfo, but any lfo. I want to control the lfo speed(freq) with the keytrack(note#) . I want the lfo speed to double when you play a note 1 octave higher. just like a real osc. Imagine you have an lfo tied to amp and when you play a c1 its modulating the amp at a quarter note, I want the lfo speed to double when I play a c2 , so now the amp is wobbling at an eighth, play a c3 and the amp is at a sixteenth... its the same effect you get when you sample a sound that has modulation or movement, play the original note and the modulation is the same... play an octave up and the modulation doubles in speed. I guess there is no simple way to do this in rapture, I will just have to play around with the amount in the matrix and get it as close as possible by ear . keep b rocking. is there anywhere to share user patches. I have some tasty dnb leads and basses I would be more than happy to post!

how does cc127 effect the middle c?

It doesn't affect it directly. CC127 is the 'shortcut' to getting a full Depth value out of the MIDI Matrix.

In the example that I gave you, ...
CC 127 -> Pitch LFO Freq 1 -> -32.0*** -> {smoothing variable / optional}
... CC127 is there to create a static value of -32.0 Hz. Because it's a negative number, it'll subtract from the 64.0 Hz. (added up from the other two Matrix slots). I put it there because you wanted a huge range of LFO variations (double every octave). I took half of the total (64.0 Hz.), and made it into a variable line for fine-tuned tweaking.

There's one simple reason that I keep referencing middle C. Most compositions are going to concentrate on the 2 or 3 octaves above & below middle C. A keyboard source spreads its effect over 10 2/3 octaves. I'm trying to narrow the 'sweet spot' of your keyboard control down to where you're going to use it the most.

Im not sure you quite understand my question.

I wasn't so sure, either.

I want the lfo speed to double when you play a note 1 octave higher. just like a real osc.

See, now there's where it gets a little muddy. Audio oscillators and LFOs are about the same thing, except one's for signal output, and the other is geared as a control source. There's some overlap when you bring an LFO into audio range, but then it starts creating audible sidebands above 20 Hz. or so. Poor man's AM, ring mod, FM, etc., if you will.

Let's say that you want to start out at a base value of 1 Hz., double that per-octave, and use the Keyboard tracking to control it.
1 Hz. -> 2 Hz. -> 4 Hz. -> 16 Hz. -> 32 Hz. -> (middle C) -> 64 Hz. -> 128 Hz. -> 256 Hz. -> 512 Hz. -> 1024 Hz. -> somewhere around ~1700 Hz. for the uppermost partial octave. Doubling each octave has a profound effect on lower frequency stuff. We're trying to squeeze linear and logarithmic together here.

Imagine you have an lfo tied to amp and when you play a c1 its modulating the amp at a quarter note, I want the lfo speed to double when I play a c2 , so now the amp is wobbling at an eighth, play a c3 and the amp is at a sixteenth...

There is no destination choice in Rapture's MIDI Matrix for LFO Sync. You can only control rate from the Matrix using Freq, in Hertz.

I guess there is no simple way to do this in rapture.

I have two methods that you can explore:
1). Shift+right click on the LFO Sync parameter in a Modulator. Use MIDI Learn to bind it to an external control.
2). Use your host program's automation instead. The LFO Sync parameters are exposed to automation, and that can be controlled by MIDI.

Unfortunately, I don't see any generic way to apply keyboard position to either the MIDI Learn or automation methods. It's going to depend on your hosts, controller setup, etc. I'm going to try one more thing: I don't think that LFO Sync is officially supported in .sfz scripting. But if there's a 'loophole', maybe I can dream up a routing that'll double sync divisions under keyboard control.

Edit: I missed this.

is there anywhere to share user patches. I have some tasty dnb leads and basses I would be more than happy to post!

There's someone very familiar to these boards that's hacking that out right now as we speak.
If you don't have any place online to host them temporarily, send me a PM here at the forum.

damn you are a smart Mofo b rock! Now some of the presets with cc127 make sense. and your right the range Im going for would only be an octave or maybe two. what I trying to do is replicate is the effect you get when you sample a sound with movement in it: such as a sine wave with a lfo controling the pitch (vibrato) .. the vibrato is shaking at around a 8th note . now if I sample a c1 (record it as audio) play it back at c1 the vibrato is the original speed , play the sample a octave higher c2 the vibrato is double in speed .. this is the same as when you have multiple osc detuned from one another. the beating heard between the osc double in speed as you move up the keys by octave. I just wanted to better explain where i was coming from. thanks for all you help Im getting better results and understand better with your help!