LinuxMusicians

There is no split/combine of stereo/mono tracks into mono/stereo tracks like in ProTools. You can do so: add two mono busses, connect them to the outputs of your track and re-record mono signals to them from the source stereo track.

beck wrote:Ok sadko4u. Also not the possibility to record split with the Mixer panning to 2 mono tracks? (i will experiment with that)

I don't understand what you mean. You may just create two mono tracks, connect separate inputs from Mixer to these tracks and record each channel as mono track. You actually don't need to split them.
If you want to split them from stereo, you should probably just re-record the mono tracks. As the source you can take the stereo track, not the output of the mixer. Just connect the left output of the stereo track to the first mono track and the right - to the second mono track. Also you may disable panning of the source stereo track in Ardour. You will get no quality losses because internally all data is already present in floating point format and there is no need to do DAC-ADC again.

There is no need to export the audio just grab the wav file in the project directory import it to audacity and split it. Save then import each track back into your project.

A wave editor is what you need and audacity is a wave editor. However if you want to solo the track and mixdown split channels I guess you can. Either way you have to import your audio back in to the project.