Metasonix Formant Filter?

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wuff_miggler
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Metasonix Formant Filter?

Post by wuff_miggler » Mon Mar 23, 2020 10:50 pm

Question to Eric,

just wodnering if you've ever toyed around with the idea of a formant filter for Metasonix?
I cant imagine what absolutely batshit sounds you could get out variable drive, formants, resonance, and feedback in the same box...
is this even a feasible idea in toob-land

?

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Re: Metasonix Formant Filter?

Post by leftbracket » Tue Mar 24, 2020 1:34 pm

The ancient (and extremely rare) TS-22 was a very similar concept, although the distances between the filter cutoffs were fixed. The TM-2 was essentially half a TS-22 with resonance shared between the filters.
Unless Eric decides to make something similar in the future, a set of RK4s and some mixing and CV sources would be a solid approximation of the functionality.

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Re: Metasonix Formant Filter?

Post by electricanada » Tue Mar 24, 2020 2:23 pm

Seems like several RK4s (or one D2000) patched in parallel might do it.
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Re: Metasonix Formant Filter?

Post by wuff_miggler » Tue Mar 24, 2020 2:55 pm

well - thats a little lazy of me sorry folks! Certainly looks like 3 rk4s will do this :)
wonder if the rk4s can be modified to sweep frequency and cv the mofos.

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Re: Metasonix Formant Filter?

Post by EPTC » Tue Mar 24, 2020 5:12 pm

electricanada wrote:
Tue Mar 24, 2020 2:23 pm
Seems like several RK4s (or one D2000) patched in parallel might do it.
GREAT IDEA - I've never patched D2000s for audio - normally do audio with S2000. What's the patching for audio? Is it pitch input or trigger of each pitched drum? Then audio out of that into the next one, etc?

Fun to consider feedback loops with a Y-cable, too.
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Re: Metasonix Formant Filter?

Post by electricanada » Tue Mar 24, 2020 7:24 pm

EPTC wrote:
Tue Mar 24, 2020 5:12 pm
electricanada wrote:
Tue Mar 24, 2020 2:23 pm
Seems like several RK4s (or one D2000) patched in parallel might do it.
GREAT IDEA - I've never patched D2000s for audio - normally do audio with S2000. What's the patching for audio? Is it pitch input or trigger of each pitched drum? Then audio out of that into the next one, etc?

Fun to consider feedback loops with a Y-cable, too.
If I understand correctly, the RK-4/D-2000 pitched drum is a resonant bandpass filter. When you send a trigger in, you’re pinging the filter. You can send audio into either hole and get an interesting result. But for this application I’m guessing the trigger in would be the better choice.

For formants, you want the same audio input going into each filter, then sum the outs in a mixer. For more control, give each band a separate VCA before summing.
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Re: Metasonix Formant Filter?

Post by metasonix » Tue Mar 24, 2020 10:43 pm

electricanada wrote:
Tue Mar 24, 2020 7:24 pm
If I understand correctly, the RK-4/D-2000 pitched drum is a resonant bandpass filter. When you send a trigger in, you’re pinging the filter. You can send audio into either hole and get an interesting result. But for this application I’m guessing the trigger in would be the better choice.

For formants, you want the same audio input going into each filter, then sum the outs in a mixer. For more control, give each band a separate VCA before summing.
You nailed it
wonder if the rk4s can be modified to sweep frequency and cv the mofos.
WTF? They have a frequency CV input.

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Re: Metasonix Formant Filter?

Post by wuff_miggler » Tue Mar 24, 2020 10:45 pm

metasonix wrote:
Tue Mar 24, 2020 10:43 pm
electricanada wrote:
Tue Mar 24, 2020 7:24 pm
wonder if the rk4s can be modified to sweep frequency and cv the mofos.
WTF? They have a frequency CV input.
my bad - i was thinking about pitch cv controlling oscillator pitch...i should drink my coffee before posting!

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Re: Metasonix Formant Filter?

Post by Yes Powder » Wed Mar 25, 2020 1:25 am

wuff_miggler wrote:
Tue Mar 24, 2020 10:45 pm
my bad - i was thinking about pitch cv controlling oscillator pitch...i should drink my coffee before posting!
??
But that's what it does. It sweeps cutoff frequency when the RK4 is used as a filter, and pitch when used as an oscillator.

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Re: Metasonix Formant Filter?

Post by wuff_miggler » Wed Mar 25, 2020 1:34 am

im used to seeing 'freq' on filter frequency cut off , only reason i got confused about this. new to modulars too!

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