So, i'd like to control the pitch of a filter using an oscillator object.
Preferably with variable upper and lower range (filter frequency) of the oscillation.
Any ideas how to set this up?
Does this involve some of the logic objects perhaps?
So, i'd like to control the pitch of a filter using an oscillator object.
Preferably with variable upper and lower range (filter frequency) of the oscillation.
Any ideas how to set this up?
Does this involve some of the logic objects perhaps?
The filters by now are programmed to be modulated only in k-rate (which is blue inlets, slow modulation, made by envelopes, low freq oscillators etc..).
If you want to do some audio range filter FM right now you simply can't, unless you know how to program objects.
Then all the other aspects are secondary: you can achieve positive (or negative) modulation by feeding a positive (or negative) unipolar signal to the modulation inlet (unipolar outlets have the + sign, while bipolar ones have +/-).
If you feed a positive signal to the modulation inlet you can control the lower range from the filter object, and the upper range with the gain of the modulation signal
Hmm, I guess I'll have to do it remotely over midi, from Puredata or something.
[Edit]
Reading your explanation more clearly: I am actually looking for slow oscillations. Not at 'audio range' frequencies at all.
Lets say between 0.1 and 4Hz or so.
If you want to use slower lfos you can a add a dial b with a negative value to the pitch input of the lfo. That way you can obtain slower rates.
If you set the dial b to -12(1octave) you will have half the speed from what you can read on the lfo.
12hz becomes 6 hz
1hz becomes 0.5hz
Dial b to -24 the speed will be a quarter speed:
1hz becomes 0.25hz
0.5hz becomes 0.125hz
and so on......
Hah, so simple. Just didn't know where to look
So, next step is resetting the oscillator. Trigger on a notepress or something. From the gate-output of the keyboard perhaps?
[edit]
hah, of course there is a variant of the oscillators that has a reset. Awesome stuff