Sooperlooper Midi learning for undo/redo with CC messages

Using Zynthian
1

I’m using Oram on a Zythian 5.1 kit.

I acquired a Nektar Pacer Midi pedal controller. I managed to get record, overdub, multiply etc. to work via CC messages 21…25, the pedal does toggeling between 0 and 127.

Obviously undo/redo shall be a trigger, not a toggle. But the Pacer can send a CC message for foot down and one for foot up. There is no problem to have the “rewind” and “forward” labeled footswitches to send the same CC but with different values for foot up and down.

I want to have “rewind” be undo and “forward” be redo. But what do I need to send for foot up and down. I used the Midi learn function and stomped on one of the two footswitches that are both set to send CC 22. I tried 0/0 and 127/127 for up/down and several other combinations in CC trigger mode. Didn’t get it to work. There is also a CC step mode, not shure what this does exactly.

2

Did you take a look to the controller options in zynthian? Bold-push the controller to open. There is a “latch” option that perhaps helps you …

Regards

1 Like
3

Hey, thanks for your answer.

There doesn’t seem to be an option for latching. Instead there are absolute modes and relative modes number 1 to 4 and a reverse of them. Then there is an option to learn these.

There is a “zynstep CC” option too, don’t know what this is, suspect it has to do with the sequencer.

By googling I found out these settings are for encoders/sliders, to reverse them and to make them relative to a value.

My midi foot controller can do latching, triggering and stepping with CC messages. With triggering it sends a message on foot down and foot up and I think this undoes things. I will try latching now, but with sending the same value for the two states…

4

Hi @jaychris !

The undo/redo control is not a normal trigger. It works like this:

  • when received value 2 => triggers redo
  • when received value 0 => triggers undo

To operate from a foot controller you should map it to 2 different triggers in the same CC number:

  • trigger with value=0
  • trigger with value=2

The CC number is the one you bind to the control using MIDI learn.

Regards,

5

You are right. The latch option is only for “toggle” controls and this is not the case.

Regards,