I made a custom Reaper File and custom action to sort of automate stems recording on the OT. The route I went with was using Reapers SWS extension to create Action Markers. The custom actions I created would just to the Stop Playback/Jump to next Marker/Arm Track for Record/Press Play. In conjunction with Midi CC for solo/mutes. I was able to automate a “bounce down” for songs. This is a very hacky way of doing it but it worked.
I’m going to link to my Github repo so I’m able to update it and not have to keep track of the files on elektronauts and Github.
The project can be found at Github Account
The project uses some default settings that must be used for the custom project to work properly.
Don’t use Midi Tempo Sync of any sort (for scripting purposes)
Leave the default midi channels (1 – 8) setup for each track
And setup your project according to the Read Me in the Github repo.
I’ve tested this on my roommates OT and was able to “bounce” a song’s stems into 8 separate recordings. Layered them and it was bounced down perfectly.
The python script included is used for moving the markers according to your song length.
Use of the script can be found at Animated Gif
Unfortunately, there’s no easy way for me to move the midi cc items to the marker locations so this will still have to be done by hand.
If this helps just one person I’m happy to help. If there are any ideas that could possibly be implemented, please let me know.
I don’t personally own and Octatrack but I did test it out on a friends OT. This project was made for him personally and I think this could help anyone wanting to perform the same task.
If you’re interested in how this works there’s a tiny gif here
When the playback/recording happens after the transport jump, midi cc is sent out to solo/mute the next channels
Important note - if you use the python script to set your marker placement just overshoot your song length. I wouldn’t want it cutting off part of the song towards the end. Just a helpful suggestion