One knob high/low pass filter

Future_Lab's icon

Hello community.

I've built this filter which will ultimately go into a M4L device I've made. I'll be controlling it with a Novation Launch Control XL whose knobs have a nice click in the middle. So essentially, in the middle there's no filtering, turning clockwise highpass, and anti-clockwise lowpass.

While this patch does achieve this goal, it's a little clunky and occasionally there's a little click, which seems to happen more often when going from highpass to lowpass.

Help appreciated.

Max Patch
Copy patch and select New From Clipboard in Max.

Future_Lab's icon

Never mind, that was an extremely easy fix, don't know what I was thinking.

Just put [t i i] so the < object closes the gate in the appropriate order.

Interested to see how other would approach this though.

mike fonte's icon

Hi FUTURE_LAB!

I have also been trying to make a filter like that (smart filter? ) for my LaunchControl XL. Mine is clunky as well. I used the clip object. Your patch has a nice sweep to it, although I couldn't figure out how to use the [t i i] to smooth out the transition from lowpass to highpass? Ideally, I would like the filters to be bypassed when in the middle position.

Max Patch
Copy patch and select New From Clipboard in Max.