Eurorack formant filter with tracking?

[Rabid]

Does anyone have one they like, or even know of one? All I can find is the Doepfer which does not track, and the Cwejman CMF-2 which is a dual filter than can be used as a simple formant filter.

If not, then any suggestions on what filters are good for combining into a tracking formant filter and how to patch it?

[slow_riot]

I don't think there is such a thing as a formant filter. Like I mean there's no accepted design cast in stone, it's always someone's interpretation, and to me, I haven't heard one that really has a nice useful range and sounds great.

I think it's best to try and find nice sound methods with vocal characteristics on your own. Vowel sounds are very easy to get using just an osc and a filter or 2, there are guides on the internet to about what harmonic content you need but I think the movement between vowels is also important which is why it's good to just play around.

I think anti-oscillator waveshaper has some nice vowelly characterisitics which fits nicel into my current philopshy of not specifically trying to emulate a human voice, but playing an intstrument and sometimes coming across vocal sounds.

[Rozzer]

Analogue Systems RS360 will do it

[wenzel]

Formants aren't always about vocal sounds. Acoustic simulations of resonant cavities (think cello or guitar bodies) can be made using formant filters. As for tracking, well I'd have thought a formant was by definition fixed. If you want tracking then a few bandpass filters in parallel should get you what you want.

[Cat-A-Tonic]

Analogue Systems RS360 will do it

And it will give you stereo outs via band and notch.
And it is a nice triple sine wave oscillator with 1v/oct. for each filter/osc.
+ an attenuated master CV to transpose all 3.
all this on top of being an awesome VC formant filter.