Hi,

I noticed that when I route all MIDI CC data through a router that MIDI switches (value off=0 on=127) are inversed in value. Without the router the values are correct. I guess the attached example is self explanatory.
The purpose is clear I guess, I want to use a single [ctlin] and then [route] the values according to their controller number. It works fine with faders and knobs - only switch values are inversed. If you have a MIDI controller (I use an Akai MPD) you would see the reversed behavior.

My fault? I'd be glad if someone could try out and help me understand...

Jurgen

http://www.pdpatchrepo.info/hurleur/route_inverse_MIDI_switch_value?.pd

A [swap] then [pack] without crossed wires will fix it

mvh

Steffen you're right - thanks!! But how does the crossed wires cause an inversion in values? It doesn't seem logical to me.

It's because messages are sent out in a right to left order, so the cc number is being sent to the [pack] before the value. And, the left inlet is the hot inlet, meaning a message sent to it triggers output. So, when you send [pack] the cc number, it fires off before it gets the corresponding value, which means its actually sending the value from the previous [ctlin].

Maelstorm, indeed indeed - very logical. You sure understand Pd... Thanx!