if you do this though, would the front pedal cause tracking issues with the second if you ran them both on? for example, if you had the octave down first, would the second pedal (octave up) try and track both the dry signal and the -1 octave?
Running one pedal into another, then yes if both were on. The second effect inline would be tracking the other effect.
If your interested in analog octave down. basically filtered square wave being tracked.
Nothing is going to beat the boss OC2. The tracking filters are by far the best.
likewise any " boutique" pedal isnt going to reinvent the wheel. To have a top notch
tracking circuit. Anyone would just simply copy the OC2 if they were smart.
As far as octave up. You either use a wavefolder, like the green ringer. Or a delay based pitch shifter.
No other way to do it.
Its not necessarily a digital or analog thing. There is analog and digital delay lines.
But for a pitchshifter. To make it clean without weird artifacts the resolution and high speed switching frequencies needed
to make a good pitch shifter is going to be a digital delay line.
Anyways if you wanted octave up and octave down at the same time. both effects would need to have a clean input. then mixed together. so your looking at a pretty elaborate mixer section to make this happen.
Instead of trying to deal with custom builders, eventually most should realize BOSS usually already makes what they want. The newer OC-5 is doing exactly what you want. It has the classic OC2 octave down circuit. And it also has a delay based pitch shifter for octave up. Likewise it also has " polyphonic" mode which is a mixture of octave down and octave up. likewise can do multiple voices or single voice pitch shifting.
Very important feature for any octave effect is control over, Effect Wet signal, And Dry input signal. Basically wet/dry mixer....Also already in the pedal. which is the direct out knob, basically wet/dry effect level control.
Your idea for combination of high pass and low pass filters to smooth out both effect types is very good observation and good idea indeed. " IF" you had a pedal with knobs to control this, Eventually you would find " ideal" settings. and then never really touch them. And its what Boss does in many pedals. Ideal filter settings to " clean" up effect types are already there.
Likewise with any pitchshifter or octave down. try to hit a chord on the bass and it goes to mush and tracking nightmare. OC-5 has multiple built in high pass and low pass filters to make it completely possible to make chords and have it all work beautifully.
If you really really need separate switches for octave up, octave down. and have both at once. Then again OC-5 can do this. You would use 2x 0C-5 pedals. one in vintage mode for the 0C2. one in Polymode for Octave up.
You dont need a elborate mixer to have both on at once. You simply use the direct out of one pedal to daisy chain to the next pedal. Both pedals would track a dry signal. Likewise with both effects On you have wet dry control, or mixer already built into the pedals. reality I think just one OC-5 would make you happy.
Since poly mode is designed to do octave up and down. Plus additional voices basically multiple pitch shifters
