Great, thanks for that TC.
I guess I found out that in my hands, it was much more efficient to batch process multiple mono tracks (for rendering automation, e.g.,) using the “Downmix to mono” checkbox (Option A) than changing the routing on the multiple tracks to one of the mono outputs (Option B).
In the first case, I can leave the mono tracks routed to the stereo out bus, which is where at some time I must have chosen a default for all tracks to be output to. I just leave the routing alone (i.e., it stays routed to the main stereo out), and after selecting each mono audio file I want to export, it just takes a single click to the “Down mix to mono” button in the dialog.
In the 2nd case, I have to remember to change the output routing of each track I want to render (to a mono output), then when I’m done rendering, change them all back to the stereo out bus. Two extra steps, with lots of opportunity for forgetting and setting up for a mistake/confusion/troubleshooting down the road.
Everything nulls either way, so maybe I’m missing something ( ), but for rendering automation on multiple mono tracks at once it seems much easier to click one button in the dialog (“Downmix to Mono”) than change and then unchange multiple output routings for each of the mono tracks.
How do you guys generally do it?