Can anyone suggest a module or more that I could control for a wah effect ? I have an external MIDI controller (BCF2000) with a working foot pedal, need some suggestions for a patch.
dp
Hello Dave, there a few modules but here is a set up with bass and the wah wah, hope this works for you:
Just given it a run out and it keep out with early Devo!
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Use it to sweep frequencies on a band pass filter
Yes. I guess preferably one that distorts a bit. And then you can extend this to any kind of filter. It wonāt be strictly a āwahā any more, but it will be a cool effect thatās from the same universe.
Hey, thanks for the tips ! I have nicely working prototype (which I needed for a lesson in about an hour) built with the Squinky Labs Formants filter. The center frequency is swept with the MIDI-CV input while the vowel type is slowly modulated by a VCV LFO-1. Works well enough to fake it on Voodoo Child and Shaft. 
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Nice. I tend to prefer grooving on slower stuff like Burning of the Midnight Lamp and Maggot Brain
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Eddie Hazel! And then there is the āfixedā wah as a tone control, i.e. Mick Ronson.
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yes, especially good on live versions of Moonage Daydream and Width of a Circle
And then there is band of gypsies āmachine gunā and jeff beckās ādefinitely maybeāā¦
Iām sure you know this, but technically a wah is a band pass filter, so anything with BP mode should do it. I like using different filter types for a different sound, so experimentation is key. Iāve got a MIDI foot controller with two expression pedals but havenāt tried this yet, other than a kind of voice box patch combining bit crushing with a BP filter and a clock divider to drop it down an octave. Another fun one for guitar is to use Entrian Follower to make an auto-wah. Iāve got a nice patch somewhere using this with Box of Revelation, let me know if you want me to dig any of these out! Anyway Iām off to listen to Maggot Brain, havenāt heard that for years. Brilliant!
Cheers,
Ed
My student had already got pretty far with Voodoo Child, we had a lot of fun yesterday. Btw, I also recommended he check out White Room, Tales Of Brave Ulysses, and Papa Was A Rolling Stone, all good examples to the purpose.
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Anyone know a pitch shifting module that could be used in a similar way with incoming audio and expression pedal MIDI->CV to replicate a Whammy pedal as used on things like Seven Nation Army?
Itās kind of a fun idea to build a guitar pedal board from VCV modules
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Nysthi, surprisingly has one: Pitchshifter, he has a fuzz distortion as well, Bidoo -Pitch. Those are the ones Iām aware of. Probably more. Any audio examples of what the pedal does?
basically just listen to a lot of the stuff Jack White used to play in White Stripes, most famously the octave up and down shifting in Seven Nation Army. Cheers for the tip.
hereās Digitechās demo
more fun demo of the ājuniorā version (like an Autowah version) of the pedal, the Whammy Ricochet
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Thanks, as I do, I put a rough patch version together without the Midi option, would MIDI CV module serve that function?
should work fine youād just need to listen to an incoming CC value which is what the expression pedal uses.
Well Iām not a guitarist, always try to keep it within rack, so might try AI Resonator or Pluck on Macro modules to get a vague guitar sound. Hereās the patch so far, any advice on alterations donāt hesitate to ask for them.:
Whaamy style pedal.vcv (27.8 KB)
Thatās how Iām running my pedal into VCV Rack. The pedal itself is an old Yamaha foot controller, works perfectly with the BCF2000 (where itās CC# 94, IIRC). I use an attenuverter to adjust the effective range. Btw, I did try the Vult Tangents filter in bp mode, didnāt care for the results but didnāt spend a lot of time tweaking it. YMMV.
Iām curious - who āsmooths outā the 7 bit value coming from MIDI? does the core MIDI module do this? Because someone better, or I would think you would get grainy sound or even the dreaded āzipper noiseā.
Hello Dave so I have created a patch using all VCV modules based around the Squinky Formants filter and got some good wah-wah effects from it! So how have you modulated the vowel type via a real guitar? I have used AI Macro-Pluk and Resonator as my guitar sources.